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Other Stuff => Archived Manufacturer Circles => Vinnie Rossi => Topic started by: Vinnie R. on 4 Jun 2018, 08:14 pm

Title: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 4 Jun 2018, 08:14 pm
All,

I updated the website with the L2 Signature Monoblocks page:

https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/)

- Please keep in mind that it still needs to be updated with a photo slider, more pics, and additional measurements in the specifications section.  It should still serve as a good start, and the Shopping Cart is now active. :)

- This new thread will be the location to discuss the L2 Signature Monoblocks, post feedback and reviews, etc.

- You will also see a link to the L2 Siganature Preamplifier page, but at this time I only have a few pics (Features/Specifications lists
coming later this month).  I will be starting another thread titled "L2 Signature Preamplifier - Information and Discussion Thread"
in the next few weeks.  Let's try to keep the monoblock discussion in this thread, and preamp discussion in the upcoming thread, ok? Wink2

(https://www.vinnierossi.com/wp-content/uploads/2018/06/AMPbackVIEW.png)
[NOTE: The rear panel of the production units will say "L2 Signature Monoblock" instead of only "L2".]


(https://www.vinnierossi.com/wp-content/uploads/2018/06/L2_Mono_Top_small2.png)


(https://www.vinnierossi.com/wp-content/uploads/2018/06/L2_Monoblock_Case2-1.jpg)
[L2 Signature Monoblock custom injection-molded travel case - will have custom-made inner foam to precisely fit the product (not shown) and Vinnie Rossi logo badge attached.] 
Each L2 Siganture Monoblock ships in its own travel case, which is air/water tight (up to 3 feet deep) and Made in the USA.


(https://www.vinnierossi.com/wp-content/uploads/2018/06/AMPfrontVIEW.png)

FEATURES / SPECIFICATIONS

Please visit https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/) and click on the tabs to learn more.

ORDERING

We are now taking orders!  Current lead-time is approx. 3 weeks from when we receive your order.

TRADE-IN

If you are interested in trading-in your VR120 for trade-in credit towards a pair of L2 Signature Monoblocks, please email me (vinnie@vinnierossi.com) to discuss.

NOTE: L2 Signature Preamplifier (as well as L2 DAC and L2 Phonostage) are not estimated to enter production until end of July.


Once again, THANK YOU for all your interest, enthusiasm and support (and patience with me getting L2 into production)!

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Triode Pete on 4 Jun 2018, 08:21 pm
All,

I updated the website with the L2 Signature Monoblocks page:

https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/)

- Please keep in mind that it still needs to be updated with a photo slider, more pics, and additional measurements in the specifications section.  It should still serve as a good start, and the Shopping Cart is now active. :)

- This new thread will be the location to discuss the L2 Signature Monoblocks, post feedback and reviews, etc.

- You will also see a link to the L2 Siganature Preamplifier page, but at this time I only have a few pics (Features/Specifications lists
coming later this month).  I will be starting another thread titled "L2 Signature Preamplifier - Information and Discussion Thread"
in the next few weeks.  Let's try to keep the monoblock discussion in this thread, and preamp discussion in the upcoming thread, ok? Wink2

(https://www.vinnierossi.com/wp-content/uploads/2018/06/AMPbackVIEW.png)
[NOTE: The rear panel of the production units will say "L2 Signature Monoblock" instead of only "L2".]


(https://www.vinnierossi.com/wp-content/uploads/2018/06/L2_Mono_Top_small2.png)


(https://www.vinnierossi.com/wp-content/uploads/2018/06/L2_Monoblock_Case2-1.jpg)
[L2 Signature Monoblock custom injection-molded travel case - will have custom-made inner foam to precisely fit the product (not shown) and Vinnie Rossi logo badge attached.] 
Each L2 Siganture Monoblock ships in its own travel case, which is air/water tight (up to 3 feet deep) and Made in the USA.


(https://www.vinnierossi.com/wp-content/uploads/2018/06/AMPfrontVIEW.png)

FEATURES / SPECIFICATIONS

Please visit https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/) and click on the tabs to learn more.

ORDERING

We are now taking orders!  Current lead-time is approx. 3 weeks from when we receive your order.

TRADE-IN

If you are interested in trading-in your VR120 (or Red Wine Audio amplifier) for trade-in credit towards a
pair of L2 Signature Monoblocks, please email me (vinnie@vinnierossi.com) to discuss.

NOTE: L2 Signature Preamplifier (as well as L2 DAC and L2 Phonostage) are not estimated to enter production until end of July.


Once again, THANK YOU for all your interest, enthusiasm and support (and patience with me getting L2 into production)!

Vinnie

These are SUPERB sounding amplifiers! Fantastic demonstrations at the recent AXPONA show!

Good luck, Vinnie (even though you don't need it!)!

Cheers,
Pete
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: mirekti on 4 Jun 2018, 08:54 pm
From the specs: AC Input:   Factory configured for 110-120Vac  -OR-  220-240Vac (50/60Hz)

Do you use two different transformer coils or it only needs to be rewired (in case one purchase one type, but needs to change it later on)?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Mikeg77 on 4 Jun 2018, 09:03 pm
Power consumption at idle, and in use, would be an interesting spec for the web page.
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 4 Jun 2018, 09:14 pm
Hi Triode Pete,

Thank you - and looking forward to having both the L2 Preamp and Monoblocks at RMAF 2018
with your cabling! 


Hi mirekti,

Quote
From the specs: AC Input:   Factory configured for 110-120Vac  -OR-  220-240Vac (50/60Hz)
Do you use two different transformer coils or it only needs to be rewired (in case one purchase one type, but needs to change it later on)?

I had my transformers wound with dual primaries, so it would only need to be rewired (not replaced). 


Hi Mikeg77,

Welcome to audiocircle and the VR forum!

Quote
Power consumption at idle, and in use, would be an interesting spec for the web page.

I'll be posting power consumption at idle soon.  Regarding the power consumption 'in use,' that would depend on how loud you play your music and the load of your speakers.   What I can do is measure power consumption at max RMS output power (to give you an idea regarding the max it will consume).

Thanks,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Paullb on 5 Jun 2018, 03:06 am
Hi Vinnie,

Spec sheet says ultrahigh bandwidth, supershort signal path, class AB MOSFET. That sounds like Goldmund, Soulution, or Linnenberg. Am I on the right track, did you benchmark your new statement amps against any of those type of products?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 5 Jun 2018, 04:58 pm
Hi Vinnie,

Spec sheet says ultrahigh bandwidth, supershort signal path, class AB MOSFET. That sounds like Goldmund, Soulution, or Linnenberg. Am I on the right track...

Hi Paullb,

Thanks for your post:

I do not believe it is good form for me to discuss competitors products, comparisons, etc.  It is a different situation if a professional reviewer or customer happens to have a competing product on hand and wants to make comparisons within the context of their system (e.g. source, preamp, speakers, etc.).  As far as I can tell, even though the brands you mention are also achieving very high bandwidth and use Class AB MOSFET topology, the L2 Signature Monoblock amplifier's circuitry does not share anything else in common with them.

I also believe the only 'right track' to be on is the one that delivers the best sound to your ears, in your system, and within your budget.
I grant customers a 30-day return policy (no re-stock fee) for this reason, and hopefully they will have the same with the other brands of amplifier that they are considering so they can do in-home comparisons and pick the one that sounds best to them in their system. 

As many already know, I really enjoy giving demos at the trade-shows (and I appreciate everyone coming in for a good listen and posting their impressions), but I still firmly believe that the only real way of knowing if you'll be happy is to listen in your own system.  While I mention things like features, specs, warranty, return Policy, etc. - those only matter if your ears are loving what they hear.  :singing: :inlove:

Thanks again,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Paullb on 5 Jun 2018, 07:32 pm
Hi Vinnie,

I understand and respect your answer. I look forward to hearing them someday or reading some reviews if any become available.
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Mitch751 on 6 Jun 2018, 04:32 am
Hello,

Do you think these monoblocks can drive my B&W 800 Diamond 2 ?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: paul79 on 6 Jun 2018, 03:25 pm
Hello,

Do you think these monoblocks can drive my B&W 800 Diamond 2 ?

Being that they nearly double down into 4 ohms, and are 2 ohm stable, I think it safe to say these are relatively high current amps. Should be just fine running those unless your room is very large.
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 6 Jun 2018, 06:16 pm
Hello,

Do you think these monoblocks can drive my B&W 800 Diamond 2 ?

Hi Mitch751,

Yes, I think they would be a fine match.  [That speaker is in the 3 to 4 ohm range from approx. 80Hz - 800Hz, so you'll
actually have 140+ watts RMS power in that range where much of the music is].   

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Mitch751 on 7 Jun 2018, 05:53 am
thank you so much for the reply, Paul and Vinnie

very tempted .....
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: sbj23 on 13 Jun 2018, 03:04 am
Hi Vinnie,

I wanted to continue along from a question I had asked on the AXPONA thread.  My question was about how much improvement the L2 preamp + mono blocks would be over the LIO DHT, and you responded it would be "substantial" - which is great!

Could you expand on that for those of us who have the LIO DHT and have enjoyed the 1-box solution?  Does the "substantial" improvement come largely from the monoblocks?  I currently use the MOSFET amp in the LIO, so of course I'm sure the monoblocks (or the VR120 for that matter) would provide much more power to the speakers.  How much of the improvement is from the L2 Pre being superior to the LIO Pre?  It seems that the L2 DAC will be similar to the LIO DAC 2.0, but better.  What other elements are contributing to the "substantial" improvement?

I know you are still working on the details and providing your customers with more information.  Please take your time in answering, whenever the time is appropriate and convenient for you.  Thank you Vinnie for continuing to make wonderful products!
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: magnuska on 13 Jun 2018, 09:20 am
Hi sbj23

I am not Vinnie but for my own experiences with LIO AVC/Tubestage and internal mosfet amp.
I added a poweramp 3 weeks ago and it was a very nice upgrade in SQ for me so I guess Vinnie is
referring to both the pre and power section when he talks about "substantial improvement"

I am also interested to know more about the differences between LIO DHT and the new L2 preamp alone.

Regards Magnus
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 13 Jun 2018, 03:30 pm
Hi sbj23,

The substantial improvements come from both L2 components, and I will go into more detail about this later when I have more time and when all the L2 Signature Preamplifier details are up on our website (hopefully later this month). 

Right now we are as busy as ever!  :hyper:

Thank you,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: khande24 on 15 Jun 2018, 10:21 pm
Hi sbj23

I am not Vinnie but for my own experiences with LIO AVC/Tubestage and internal mosfet amp.
I added a poweramp 3 weeks ago and it was a very nice upgrade in SQ for me so I guess Vinnie is
referring to both the pre and power section when he talks about "substantial improvement"

I am also interested to know more about the differences between LIO DHT and the new L2 preamp alone.

Regards Magnus

Just curious, what poweramp are you using with the LIO? The VR120?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: magnuska on 16 Jun 2018, 06:04 am
Just curious, what poweramp are you using with the LIO? The VR120?

I use a class D amp with the ICE edge 1200AS module.  (Mivera audio purepower SE)

Regards Magnus
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 20 Jun 2018, 08:44 pm
All,

Just a quick update on the L2 Signature Monoblocks:

- All parts are in stock and I will start shipping orders later next week!  :hyper:
- Additional pics and measurements for the website are coming soon.

I've been insanely busy as you can imagine, but I hope to begin updating the website (and this forum) with more
info on the L2 Signature Preamplifier, L2 Phonostage, and L2 DAC in just a couple of weeks.  :)

Thank you,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 27 Jun 2018, 05:27 pm
Power consumption at idle, and in use, would be an interesting spec for the web page.

Testing has been finalized, and I have just updated the Specifications section for the L2 Signature Monoblock page with this information,
as well as SNR, THD (full power), etc.:

https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/)
(Click on the "Specifications" Tab)

The first few units are shipping tomorrow!

Current lead-time is approx. 2 - 3 weeks from when I receive your order.

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: poseidonsvoice on 27 Jun 2018, 05:44 pm
Vinnie,

That’s a gorgeous chassis and design! Love it! All the best to you!

Best,
Anand.
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Bones13 on 27 Jun 2018, 10:48 pm
L2 monoblocks without UltraCaps it appears. Please correct if I am wrong.

How about the Pre-Amplifier. I will say I kinda prefer not to have 2 external power blocks. (Or is it just the one power block now with the DHT?, I’m still confused about that)
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 27 Jun 2018, 11:55 pm
L2 monoblocks without UltraCaps it appears. Please correct if I am wrong.

Hi Bone13,

I posted the following in the Axpona 2018 thread regarding a similar question about the caps (applies for the L2 Preamp and Monoblocks):

Copy/paste:

They are all linear supplies with very-low ESR (equivalent series resistance) electrolytic capacitors (not ultracaps).  The ESR on the higher voltage rails of the L2 Monoblocks is actually even lower with these electrolytics that I am using compared to using ultracaps.  The reason is because the total ESR of the cap bank on the rails using the ultracaps increases as you add them in series and you need many of them to get these voltage rails (approx. 4 times as many as I use in LIO).

Quote
I will say I kinda prefer not to have 2 external power blocks. (Or is it just the one power block now with the DHT?, I’m still confused about that)

L2 does not have external power supplies.  It is all internal (you can see the rear panel pics of the L2 Preamp and Monoblocks on our website).

Quote
Vinnie,

That’s a gorgeous chassis and design! Love it! All the best to you!

Best,
Anand.

Thank you, Anand!


Hope to see you guys at RMAF this Fall. 

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Bones13 on 28 Jun 2018, 02:14 am
Thanks Vinnie!
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Mikeg77 on 28 Jun 2018, 06:32 am
Vinnie, speaking for the tech newbie, I remember reading your earlier post about ESR and electrolytic capacitors and thinking:  Wow, but what does that mean?  Is it a newer form of energy storage/release similar to a bank of Ultracaps where you isolate music power from the home AC, or is it just a new form of direct-from-AC music power supply?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 28 Jun 2018, 03:38 pm
Vinnie, speaking for the tech newbie, I remember reading your earlier post about ESR and electrolytic capacitors and thinking:  Wow, but what does that mean?  Is it a newer form of energy storage/release similar to a bank of Ultracaps where you isolate music power from the home AC, or is it just a new form of direct-from-AC music power supply?

Hi Mikeg77,

ESR = Equivalent Series Resistance.

It is the resistance inside the capacitor.  Using a water analogy, a power supply capacitor is like a storage tank:

- The lower the ESR, the higher the instantaneous current (water flow) the capacitor can output. 
- The higher the capacitance value, the more water can be stored in the tank.
- The higher the voltage, the more water pressure is available.

So we want high storage (Capacitance), high flow (Amperage, flowing through a very low resistance "pipe"), and in order to get more output power, the amplifier needs high enough DC voltage rails (pressure).

Typically, the more output power you want to output, the higher the voltage rails need to be in order to recreate an amplified signal of the input.  The output signal must "swing" (go cycle positive and negative) between the voltage rails but cannot get too close to them or else the waveform gets "clipped" = distorted, as the output cannot go higher than the rails that are being modulated to create it).

I hope this makes sense, but if not, maybe we can start a new thread about it?  I'm sure there are already many good threads on Audiocircle and various forums about topics such as this.   8)

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: matthewpartrick on 5 Jul 2018, 06:53 pm
Are you offering the VR120 in the future?  I'm currently using it as a stereo amp but considered getting another running as a monoblock.  Would that be an option or would I need to upgrade to the L2?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 5 Jul 2018, 08:04 pm
Are you offering the VR120 in the future?  I'm currently using it as a stereo amp but considered getting another running as a monoblock.  Would that be an option or would I need to upgrade to the L2?

Hi Matthew,

The VR120 has been discontinued (They are all sold out, and I do not plan to order parts to make a new production run).

You can trade-in your VR120 for 100% credit towards a pair of L2 Monoblocks (which would be more expensive than
a new VR120, but you will find the increase in performance to be well worth it!)

Best regards,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: matthewpartrick on 8 Jul 2018, 08:30 pm
Thanks!  I'm super satisfied with the VR120 right now but you never know what the future holds.  The DHT PRE and V2 DAC with the VR120 and the JA Perspectives has been the ultimate system for me, and I can't imagine a better sound.

That said, what's the V2 preamp going to have that my LIO doesn't? Inquiring minds want to know!?!?!?! :) :thumb:
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 8 Jul 2018, 09:04 pm

That said, what's the V2 preamp going to have that my LIO doesn't? Inquiring minds want to know!?!?!?! :) :thumb:

Hi MP,

Thanks for your excitement, and I'll be updating the website with all the details (and starting a new discussion thread here on the VR forum) about the L2 Signature Preamp later this month.

It looks like L2 Preamp will not begin shipping until the end of August. 

This has been a very busy summer, but I don't feel so bad staying inside working because I'm beating the heat! 8)

Happy listening!
Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: matthewpartrick on 9 Jul 2018, 12:28 am
I understand the shift towards the mono blocks—what if I don’t decide right away, ie I don’t opt for the mono blocks until a year from now, is the trade in still good?  I’d have to figure out how to arrange the Cardas cables that I biwired without wasting them.  Food for thought!
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 9 Jul 2018, 02:08 pm
Hi MP,

I understand the shift towards the mono blocks—what if I don’t decide right away, ie I don’t opt for the mono blocks until a year from now, is the trade in still good?

Yes.  :)

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: gene9p on 9 Jul 2018, 02:39 pm
Thanks!  I'm super satisfied with the VR120 right now but you never know what the future holds.  The DHT PRE and V2 DAC with the VR120 and the JA Perspectives has been the ultimate system for me, and I can't imagine a better sound.

That said, what's the V2 preamp going to have that my LIO doesn't? Inquiring minds want to know!?!?!?! :) :thumb:

could you share a little insight on the VR120. Perhaps the amp you replaced and the sound differences....oh and the speakers you are using...Thanks!
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 9 Jul 2018, 03:34 pm
could you share a little insight on the VR120. Perhaps the amp you replaced and the sound differences....oh and the speakers you are using...Thanks!

Hi Gene,

VR120 is a discontinued product now, and I only want to use this thread for discussion of the L2 Monoblocks.  Feel free to email
me privately if you have VR120 questions. 

Regarding speakers, I have been using something of my own that I hope to go into a lot more detail about in another thread this Fall.  Right now I can't say another word about it.  :shh:

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: jtwrace on 9 Jul 2018, 05:19 pm
Regarding speakers, I have been using something of my own that I hope to go into a lot more detail about in another thread this Fall.  Right now I can't say another word about it.  :shh:

Vinnie
Will they be at RMAF 2018?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 9 Jul 2018, 05:31 pm
Will they be at RMAF 2018?

Hi jtwrace,

I'm already sharing rooms with Spatial Audio and Harbeth at RMAF 2018, so most likely not (but perhaps
for "after-hours" listening).  We'll see how it goes...

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 22 Jul 2018, 03:40 pm
Here are a few fresh images of the L2 Signature Monoblocks:

(https://www.audiocircle.com/image.php?id=182678&size=xlarge)

(https://www.audiocircle.com/image.php?id=182679&size=xlarge)

(https://www.audiocircle.com/image.php?id=182677&size=xlarge)

(https://www.audiocircle.com/image.php?id=182681&size=xlarge)

8) :singing: :inlove:

Vinnie

PS: I am aiming to send out a newsletter update mid-week:
https://www.vinnierossi.com/newsletter-registration/ (https://www.vinnierossi.com/newsletter-registration/)

And then website updates...
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 26 Jul 2018, 04:08 pm
Update 7/26:

L2 Signature Monoblocks webpage updated:

https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/)

8)

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: jriggy on 26 Jul 2018, 05:02 pm
Hey Vinnie,
do the two mono blocks fit into one flight case or do they have to come in two separate shipping cases?
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 26 Jul 2018, 05:06 pm
Hey Vinnie,
do the two mono blocks fit into one flight case or do they have to come in two separate shipping cases?

Hi jriggy,

Each monoblock ships in its own custom case (I considered and tested putting two into one larger case, but wanted the added protection
of a dedicated case per monoblock). 

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: decur on 28 Jul 2018, 07:42 pm

(https://www.audiocircle.com/image.php?id=182864)

(https://www.audiocircle.com/image.php?id=182865)

So,
I have been listening to my l2 mono blocks for a few weeks now,and i am thrilled at what i am hearing!
In comparing them to my recent vinnie rossi vr120 mono blocks,which i absolutely loved,the l2 has the same sound signature (flavor) as the vr120s,but is more transparent,detailed with less grain.more organic sounding.
These amps completely disapear in my listening room. I ONLY hear music. They are a little warmer sounding than the vr120s,but only slightly so.
I cant wait to hear what the l2 pre amp sounds like with my l2 monos😀 end of august cant come soon eneough....
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: decur on 28 Jul 2018, 07:49 pm
Oh,
Forgot to mention,i am running gamut rs5i 4 ohm speakers,which are current hungry monsters
And the L2 mono’s do not even break a sweat. I was worried,that 75w into 8ohms,140w into 4 ohms would not be sufficient power for my gamuts,but NO PROBLEM!!!
These amps have loads of current and are lightning fast.
 
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Ric Schultz on 28 Jul 2018, 08:01 pm
If you remove all of your cables (power, interconnect, digital and speaker) off the floor you will hear a far better system.....way more open, transparent and holographic.  You can make cable risers out of solid wood, cardboard or buy some commercial ones.
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: decur on 28 Jul 2018, 08:10 pm
Thanks for the tip,will do!
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 2 Aug 2018, 02:34 pm
Oh,
Forgot to mention,i am running gamut rs5i 4 ohm speakers,which are current hungry monsters
And the L2 mono’s do not even break a sweat. I was worried,that 75w into 8ohms,140w into 4 ohms would not be sufficient power for my gamuts,but NO PROBLEM!!!
These amps have loads of current and are lightning fast.

Hi decur,

Thanks for your post, and your system and room look great!

When you hear the L2 Preamp (with the all new L2 Phonostage for that Palmer turntable!) with your L2 Monoblocks, then you are really going to hear what the L2 Monoblocks can do!  :drool:  :guitar:  :notworthy:

(https://www.audiocircle.com/image.php?id=183006&size=large)

Thanks again and I'm very glad you are enjoying your L2 Monos with those beautiful sounding rs5i's!

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 3 Aug 2018, 05:19 pm
All,

I forgot to mention more detail about the 12V Trigger Inputs.  Not a very "exciting" topic, but let me go over it now:

Via the L2 Preamplifier, you can turn ON/OFF the L2 Monoblocks (or another power amp with 12V trigger inputs) using the dual 12V Trigger outputs of the L2 Preamp.

For both components, I chose Neutrik 1/4" (6.35mm) locking TRS panel mount jacks.  I know it is more common (and less expensive) to use the  the smaller 3.5mm jacks (especially the cheap PCB mount jacks), but I found that none of them are nearly as rugged as this 1/4" panel-mount locking jack.

So depending on the length of your interconnects from L2 Preamp to L2 Monoblocks, you want to use approx. the same length TRS cables for the 12V triggers for each monoblcok.  I tested these, and they are very well made, readily available in many lengths, and at a great price!

https://www.monoprice.com/product?c_id=115&cp_id=11509&cs_id=1150901&p_id=4792&seq=1&format=2 (https://www.monoprice.com/product?c_id=115&cp_id=11509&cs_id=1150901&p_id=4792&seq=1&format=2)

[1.5ft, 3ft, 6ft, 10ft, 15ft, 25ft, 35ft, 50ft, 75ft]  :thumb:

NOTE:  If you are outside the USA, it is probably much more convenient that I order these cables for you and include them with your L2.  Just let me know in the comments section of your order.

L2's 12V triggers (simple explanation):

When you turn ON your L2 Preamp and press the TRIG button on the front panel, the two 12V trigger outputs are turned ON.  This turns on/off the L2 Monoblocks without you having to turn on their ON/OFF switch. 

L2 Preamp saves the 12V trigger setting when you turn it ON/OFF.  This way, you can turn everything ON/OFF together via the PWR button on the L2 Preamp remote (or front panel).  Simple.

---

Q: [From a customer looking to use two pair of L2 Monoblocks for bi-amping his speakers].  How do I connect the triggers for 2 pair of L2 Monoblcocks (4 monoblocks)?

A: A TRS Y-cable will do the trick.  One for the LEFT channel trigger output (to turn on the two LEFT monoblocks in a bi-amp system), and one for the RIGHT channel.
(https://images-na.ssl-images-amazon.com/images/G/01/musical-instruments/detail-page/B000068O56_img1.jpg)

This way, you can turn ON your L2 Preamp and all 4 monoblock with just a press of a button on the remote.  8)

And if you don't want to use a Y adapter, they make cables that go from one TRS male plug to two TRS male plugs.

And yes, I have seen cables that convert TRS male to 3 TRS females in case you want to tri-amp with 3 pairs of L2 Monoblocks.  :green:

Each L2 Monoblock trigger input only draws 45mA, and each L2 Preamp trigger output can provide 250mA continuous.

Q:  Does the 12V trigger cable have any influence on sound quality?

A:  No - not at all.  It is just a low current 12V DC on/off signal that turns on/off a power relay (instead of manually turning on/off the power rocker switch). 

I think that covers it!

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: MicheladaAntelope on 11 Aug 2018, 05:11 pm
I’m not well versed in describing the subtle sonic differences in one great set up vs another great set up.   So, I’m going to tell a brief story of my new L2 monos powering a pair of Harbeth M40.2’s, being fed by my LIO DHT pre.

You see, I call my listening room (living room) varyingly “happy place”, “sonic wonderland”, etc.   It’s the best.   It was the best when I ran LIO as an integrated only.  Got much better when I added a VR120, and now moving to the new L2’s I can say it really is my “sonic wonderland”.

A couple of weeks ago I returned home around 1 a.m. from a rip roaring Phish show on a school night with the alarm set for 430.  By the time I arrived at home, the show was already downloaded and ready.   I thought to myself, “lets see if Vinnie can get me back THERE”.   And so, in a highly questionable move, I launched Roon, loaded up the show that finished only 90 minutes earlier, set LIO’s volume to 45 as a starting point 🤪 and pushed play.    Long story short, Vinnie definitely got me back THERE, but I was only there for about 45 seconds before I was nearly attacked by multiple children, an angry wife, and the dog.   TRUE.   

But then at 430 the alarm goes off.   I really really really wanted to be back THERE again....   But I know where the line is and this would most assuredly have gone way over it.   So I thought to myself, “can vinnie get me THERE at extra low volumes too?”   Well, its dark, its early, I’m not thrilled about going to work in 30 minutes.  But can’t I go back THERE one more time?   LIO volume set to 1.  Can’t get any quieter.   Sit down on couch.   Launch Roon and push play.   I was so much more blown away.   The ability of the LIO/L2 combo to deliver spot on reproduction of what really happened, at extreme ends of the volume spectrum was shocking to me.   ALL of the details were perfectly clear.   

Vinnie, thanks for helping to create my sonic wonderland.

Mike
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: guf on 11 Aug 2018, 11:01 pm

A couple of weeks ago I returned home around 1 a.m. from a rip roaring Phish show on a school night with the alarm set for 430.  By the time I arrived at home, the show was already downloaded and ready. 

we love the Phish! what show? Great job Vinnie.
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 16 Aug 2018, 03:42 pm
Hi MicheladaAntelope,

Quote from: MicheladaAntelope
You see, I call my listening room (living room) varyingly “happy place”, “sonic wonderland”, etc.   It’s the best.   It was the best when I ran LIO as an integrated only.  Got much better when I added a VR120, and now moving to the new L2’s I can say it really is my “sonic wonderland”.

...The ability of the LIO/L2 combo to deliver spot on reproduction of what really happened, at extreme ends of the volume spectrum was shocking to me.   ALL of the details were perfectly clear.   

Thank you for posting your impressions of your L2 Signature Monoblocks with your LIO DHT Preamp!   :notworthy:

Quote from: guf
we love the Phish! what show? Great job Vinnie.

Thank you, guf!

It sounds like Mike brought the show to his home!   :thumb: :guitar: :drums: :singing:

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: MicheladaAntelope on 17 Aug 2018, 03:22 pm
DAILY IF POSSIBLE
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 3 Oct 2018, 04:57 pm
L2 Signature Monoblocks are ready for RMAF, in 'king suites' 3018 and 4024!  8)

(https://www.audiocircle.com/image.php?id=185103&size=xlarge)

See you there!

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Em2016 on 7 Nov 2018, 07:37 am
I posted the following in the Axpona 2018 thread regarding a similar question about the caps (applies for the L2 Preamp and Monoblocks):

Copy/paste:

They are all linear supplies with very-low ESR (equivalent series resistance) electrolytic capacitors (not ultracaps).  The ESR on the higher voltage rails of the L2 Monoblocks is actually even lower with these electrolytics that I am using compared to using ultracaps.  The reason is because the total ESR of the cap bank on the rails using the ultracaps increases as you add them in series and you need many of them to get these voltage rails (approx. 4 times as many as I use in LIO).

L2 does not have external power supplies.  It is all internal (you can see the rear panel pics of the L2 Preamp and Monoblocks on our website).
Vinnie

Hi Vinnie

I understand the new L2 range to have lower noise than the LIO ultraCap.

But what about mains/AC RF filtering? The disconnection from mains power and breaking AC leakage current loops (and associated mains RF) for the LIO range is a big advantage regarding mains RF.

What lengths have you gone to, for mains RF filtering with the L2 range?

Very interested in the L2 range pre and monoblocks.

Cheers!
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 7 Nov 2018, 03:56 pm
Hi Em2016,

Quote
What lengths have you gone to, for mains RF filtering with the L2 range?

For the L2 Signature Monoblock, RF noise from the AC mains is highly filtered via the inductance
of the 500VA toroid, as well as a C-R-C-R-C filter after the rectification stage.  That filter cuts
out noise by -120dB at 100kHz.  The amplifier stage itself has quite good power supply and common
mode rejection ratios as well.

For the L2 Signature Preamplifier, I worked with Brian Lowe of Belleson on the dual mono power supply design
and am using his patented super regulator designs throughout, as they are needed to get the noise floor
as low as possible in this DHT design, as well as for the L2 Dac and L2 Phonostage options.


I'm off to the NYC today and setting up for the NYAS tomorrow... if you can, come on over for a listen!

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Em2016 on 8 Nov 2018, 01:13 am
Hi Em2016,

For the L2 Signature Monoblock, RF noise from the AC mains is highly filtered via the inductance
of the 500VA toroid, as well as a C-R-C-R-C filter after the rectification stage.  That filter cuts
out noise by -120dB at 100kHz.  The amplifier stage itself has quite good power supply and common
mode rejection ratios as well.

I'm off to the NYC today and setting up for the NYAS tomorrow... if you can, come on over for a listen!

Vinnie

Thanks Vinnie. So in terms of AC/mains borne RF noise, your L2 series measures as well as your LIO ultraCap? In your measurements?

I'm on the other side of the world, otherwise I'd definitely be at the NY show!

Many thanks again
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 13 Nov 2018, 09:49 pm
Hi Em2016,

Quote
Thanks Vinnie. So in terms of AC/mains borne RF noise, your L2 series measures as well as your LIO ultraCap? In your measurements?

Yes, and it actually measures better in terms of noise, distortion, bandwidth...

Best regards,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Mitch751 on 29 Nov 2018, 01:06 am
Hello,

I am finally traded in my B&W 800 Diamond 2 and getting for a brand new Wilson Audio Sasha DAW, and would like to know your opinion of driving this Wilson speakers with your L2 Signature Monoblocks ?

Thank you
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 29 Nov 2018, 02:51 am
Hello,

I am finally traded in my B&W 800 Diamond 2 and getting for a brand new Wilson Audio Sasha DAW, and would like to know your opinion of driving this Wilson speakers with your L2 Signature Monoblocks ?

Thank you

Hi Mitch751:

Wilson Sasha DAW:

Quote
Sensitivity:
91 dB (one watt at one meter at 1kHz)
Nominal Impedance:
4 ohms / minimum 2.48 ohms @ 85 Hz
Minimum Amplifier Power:
25 watts per channel


Each L2 Monoblock will give you 140Wrms into 4-ohms (and more into 2.48 ohms). 
With 91dB sensitivity, it will drive them very well (unless you are in a large room really looking to
play 'em very loud). 

Audiocircle member "decur" has Gamut RS5i floorstanders (4-ohm, 88.5dB sensitivity) with the L2 Signature Preamp
and Monoblocks and he can play them LOUD and clean (medium sized room).  Awesome punch, extension and control!

[I think both speakers are at a similar price point]

I am sure you will be more than pleased, and will find them to have finesse and subtlety that many larger amps won't
deliver.  :wink:

Best regards,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Mitch751 on 29 Nov 2018, 03:27 am
Awesome

That’s a great news to me.

Let have the Wilson delivered and setup, I will seriously consider L2 and set it as my 2019 plan.

Thank you so much
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 29 Nov 2018, 04:00 am
Hi Mitch751,

Most definitely! 

Get the speakers set-up, dialed-in and singing in your room first. 

I hope they work out for you and give you goosebumps!  :thumb:

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 3 Jan 2019, 05:18 pm
L2 Signature Monoblocks - New for 2019!

Happy New Year!

Our website now has updated pages for the L2 Signature Monoblocks (and the L2 Signature Preamplifier), which
reflects the new pricing for 2019 as well as a new 'standard feature' for L2:

L2 Isolation Base, featuring (4) patented Stillpoints ULTRA MINI feet. 

Quote
The Stillpoints ULTRA MINI feature one ceramic ball bearing that acts as a vibration filter (isolator) to reduce the transfer of vibration to the audio component.  It is a bidirectional isolation device that has no direct vertical path through them.  The reduction of mechanical noise to the component delivers improvements such as a greater sense of space around instruments and performers, low-level detail retrieval, and microdynamic shadings.

The L2 Isolation Base is solid, CNC-machined aluminum and bolted to the bottom of the L2 component.  As with the enclosure for the L2 Signature components, they were designed by the Evett Design Group & Vinnie Rossi.  They really look fantastic and add a more substantial and premium look and feel:

(https://www.audiocircle.com/image.php?id=188599)

(https://www.audiocircle.com/image.php?id=188600)

(https://www.audiocircle.com/image.php?id=188601)

(https://www.audiocircle.com/image.php?id=188602)

(https://www.audiocircle.com/image.php?id=188603)


Availability:  I should have the L2 Isolation Bases in stock by the end of February 2019. 

- For 2019 L2 orders that ship before this time, I will send the isolation bases separately, along with the mounting bolts and hex wrench.  They are very easy to install.  Simply place your L2 component upside down on a solid, clean surface (use a soft cloth to avoid scratches), remove the 4 original feet with the supplied hex wrench, align the L2 Isolation base over the mounting holes, and finally use provided mounting bolts to secure the base to the bottom of the L2 component.   

- For previous L2 orders (2018) that do not have the L2 Isolation Bases, you can still purchase them if you wish.  Please email or call me directly for the price and shipping.

https://www.vinnierossi.com/l2-signature-monoblock/ (https://www.vinnierossi.com/l2-signature-monoblock/)

Thank you,

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 22 May 2019, 08:03 pm
Jack Roberts (The Audio Beatnik) review of the L2 Signature Monoblocks has just gone live!  8)

(https://www.vinnierossi.com/wp-content/uploads/2018/10/beatnik-300x102.jpg)

Here is the link:
https://theaudiobeatnik.com/review-l2-signature-monoblocks-from-vinnie-rossi (https://theaudiobeatnik.com/review-l2-signature-monoblocks-from-vinnie-rossi)

Quote from: Jack Roberts / The Audio Beatnik

I think the first two things you will notice about these monoblocks is their bass and their soundstaging. Whether kettle drums, a standup bass or a big pipe organ these amps have iron-fisted control of the bass. The bass is also deep, fast and powerful.

The second thing I noticed was the soundstage, and it was huge. With the L2 Signature amps in my system, the soundstage floated behind the speakers and way to the outside of the speakers... The L2 Signatures allowed my system to do this better than any amp I have heard.

The midrange has a wonderfully natural, relaxed, liquid, sweet and warm sound. Sinatra, or Ella’s voices or Ben Webster’s sax all sounded so relaxed and effortless. These power amps enabled me to hear layers of tones and textures of the music that came out of a very natural sounding background of silence. Performances were quite involving and moving at both low and loud listening levels.

With these amps, my system also had the capability to let me hear the lushness from the strings and woodwinds. When you combine this midrange with the bass I talked about above, you have a real winner on your hands.

...These are simply very seductive sounding amplifiers.

Thank you for your time and effort, Jack - it sounds like the L2 Signature Monoblocks + Devore Super Nines made beautiful music together! :singing:

Vinnie
Title: Re: L2 Signature Monoblocks - Information and Discussion Thread
Post by: Vinnie R. on 27 Jun 2019, 03:47 pm

Michael Lavorgna of Twittering Machines has posted a spectacular review of the L2 Signature Preamplifier & Monoblocks combo!

(https://www.audiocircle.com/image.php?id=195978&size=small)

https://twitteringmachines.com/review-vinnie-rossi-l2-signature-preamplifer-and-l2-signature-monoblock-amplifiers-part-1/ (https://twitteringmachines.com/review-vinnie-rossi-l2-signature-preamplifer-and-l2-signature-monoblock-amplifiers-part-1/)

(https://www.audiocircle.com/image.php?id=195976&size=small)
Photo Credit: Michael Lavorgna / TwitteringMachines.com

Quote
“The Vinnie Rossi L2 Signature system goes deep. Way, way deep into the music. The overall presentation is rock solid, super stable, squeaky clean and precise coupled with a full boded and rich but not over-ripe sound.

The L2 system made my DeVore’s sound like new speakers, capable of things hereto only imagined. Bass response in particular was better than I’ve heard from the Xs and by “better” I mean in every meaningful way which includes tone, body, weight, and impact. The sound image completely decoupled from the speakers, filling the barn with stereo-defying presence in every dimension. Sounds picked, plucked, strummed, and sung sprung from all over the damned place like a sonic fireworks display. At the same time there was a tactile sense of the subtle, a caressing of micro-detail and nuance, allowing time and timing to create tension and release, the stuff that turns hifi into a moving musical experience. Balancing and delivering all of these traits is, in my experience, something special.

I’ve been following Vinnie Rossi’s hifi products going on 15 years and I am happy to see, hear, and report that he has arrived at the deep end of the pool with a truly satisfying splash. Coupled with my source and speakers, the Vinnie Rossi L2 Signature components offered some of the most musically satisfying sound I’ve heard in the Barn. Bravo!”

-Michael Lavorgna, TwitteringMachines.com

(https://www.audiocircle.com/image.php?id=195977)
Photo Credit: Michael Lavorgna / TwitteringMachines.com

Many thanks to Michael for all the time and effort with reviewing the entire L2 Signature System, and I am very much looking forward to Part 2! :notworthy:  8)

-Vinnie