Best phono pre-amp for Denon cartridge

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mluckow

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Best phono pre-amp for Denon cartridge
« on: 30 Aug 2008, 03:48 am »
I'm kind of an audio newbie, so I'd appreciate your advice on this.

I have a Denon turntable with a Denon DL-110 cartridge, and my amp doesn't have a phono pre-amp stage, so I need to get a decent phono pre-amp.  The Denon DL-110 is an MC cartridge but it has a fairly high output voltage of 1.6 mV, and an output impedance of 160 ohms.  (I'm using this with an SET amp and Feastrex speakers.)

I’ve been considering inexpensive preamps, such as the NAD PP-2, Bellari VP129, Cambridge 640P and the Pro-Ject Phono Box.  I’ve read a lot about all of them in various places, and it’s looking like the 640P gets the most consistently-high praise from audiophiles, but I can’t find out what the maximum input voltage is for it (or at least for the MC input).  The NAD PP-2 has a maximum input of 0.8 mV at 20 Hz (for MC input), so it apparently wouldn’t work with the Denon DL-110 cartridge.

Does anyone know if the Cambridge 640P would be appropriate for this cartridge?  Or would you recommend a different phono pre-amp?

Thanks very much for your advice!

Mike

Toka

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Re: Best phono pre-amp for Denon cartridge
« Reply #1 on: 30 Aug 2008, 04:14 am »
The Cambridge should handle it no problem (the output on the Denon is reportedly a bit higher than spec anyway). I'd also keep an eye out for the Dynavector P75 phono stage, though it might be a bit more expensive new.

TheChairGuy

Re: Best phono pre-amp for Denon cartridge
« Reply #2 on: 30 Aug 2008, 01:59 pm »
Hey Mike,

The Denon DL-110 is an MC (Moving Coil) due to it's output (which is officially 1.6v, but Denon's notoriously and mostly wonderfully spec higher by some 30% typically) you can and should use an MM (Moving Magnet) input to achieve adequate gain/volume. The real voltage of the DL-110 is closer to 2.2mv. 

Your cartridge is what is known as a High Output Moving Coil...suitable for use with MM inputs. I own the DL-160, which outputs the same as the DL-110, and use it into an MM input stage.

If you use your Denon with an MC input stage....you will have plenty of volume, which might sound exciting for a time, but within a minute or so you will know the sound is overcooked (too much gain).  As well, an MM stage will be loaded at a resistive input of 47,000 ohms....and an MC input stage at (typically) 100 ohms.  Among other spatial effects, if you load your Denon at too low a resistive input, the treble (most notably) will be quite nearly cut out of the sonic picture and the presentation of the whole cartridge will sound very weird (not lifelike)  :(

No harm in you trying your DL-110 into the MC stage (it isn't likely to create any long term harm), but you'll end up with your DL-110 into an MM input stage of whatever phono preamp of your choosing.

I hope this makes sense to you - it's difficult in the beginning to take on this new vinyl 'language'.  Don't fret - not much done can kill anything - except the painfully obvious....like whacking your cantilever off errantly (has happened to most of us in our long years of vinyl-phooldom).

Back to your question....for your Denon, you really don't need to buy a phono preamp with a MC stage, only an MM stage is needed.  Those phono preamps with an MC stage, at this point, offer to you the flexibility to use a lower output moving coil in the future without buying a new phono preamp.

Don't fret or sweat - keep asking questions and tinkering to understand - and keep at it.  We know it's a lot more to understand than plugging in your CDP into a jack on your SET, but vinyl is still the best and most natural front end available to us audiophools today and it's worth overcoming the technical hurdles to getting it right.  Very few of us go thru this ritual because we are nostalgic - we all go thru it because we believe it is worth it to get the most from our audio systems.

If I have successfully managed 90% of them now (100% is quite difficult to achieve) - believe me - anybody can  :icon_lol:

John

mluckow

  • Jr. Member
  • Posts: 6
Re: Best phono pre-amp for Denon cartridge
« Reply #3 on: 30 Aug 2008, 10:32 pm »
Toka, thanks for your advice, and thanks for mentioning the possibility of the Dynavector P75.  I had read about that somewhere but forgot about it.

John, thanks very much for all your advice and help--that was a nice little education for me.  Okay, I'll use my DL-110 with MM inputs.  In fact, maybe the Cambridge 540P would suffice for me since it doesn't have MC inputs and the other specs seem to be the same as the 640P.

Speaking of whacking one's cantilever, I have a similar story.  Soon after I bought this DL-110 cartridge (some 23 years ago), someone did launch the tonearm across an LP, and it resulted in wrenching the stylus over about 35 degrees from vertical in the cantilever, leaving a long hole in the cantilever (the path the stylus followed).  I took it back to the dealer to see if anything could be done about it, and he looked at it under a microscope and was able to move the stylus back to its proper position, and then he put an extremely small drop of superglue in the hole in the cantilever to hold it in place.  Very suboptimal surgery, I know, but I've been using it like that for 23 years.  Now that I'm kind of getting serious about audiophilia (audiophoolia?), maybe I should think about getting a new or better cartridge, maybe the DL-103??  It still sounds good to my ears, but someone with more experience might think it sounds terrible, I assume.

Thanks again for all your help!

Mike

ratso

Re: Best phono pre-amp for Denon cartridge
« Reply #4 on: 30 Aug 2008, 10:59 pm »
hey mr. chair, would this also apply to other HO cartridges (i've been looking at the benz ace at 2.5mv) or is there something special about the denon cartridge (i'm also a noob if you haven't already figured it out)  :roll:

*edit* - oops just saw you already answered my question in your post, stating you use a similar cartridge in a MM amp. sorry, didn't notice that at first read.

ratso

Re: Best phono pre-amp for Denon cartridge
« Reply #5 on: 30 Aug 2008, 11:20 pm »
and as long as i'm embarrassing myself asking stupid questions, please allow one more. i was looking at perhaps the pro-ject phonobox se II phono amp. it lists these specs:

Input impedance, MM: 120, 220, 340 and 440pf/47kohm
Input impedance, MC: 17, 18, 20, 22, 69, 100 and 220ohms/120pF

am i supposed to be somehow matching these specs up with the specs on my cartridge? if so, how? or is it just more of a "we have a lot of settings for you to fiddle with and see which sounds best" sort of thing?

TheChairGuy

Re: Best phono pre-amp for Denon cartridge
« Reply #6 on: 30 Aug 2008, 11:23 pm »
mluckow/Mike
If it sounds good to you - then it is good  :thumb:

The DL-103 will definitely require a moving coil (MC) stage - be advised.  If I've heard it somewhere - I cannot remember - but many are sold and sing it's praises.

ratso
Only Denon have I heard (and read) about significantly undervaluation of it's voltage output....I have an Ortofon X5-MC ( a HOMC at 2mv) and it does sound a bit less loud at the same point of my volume control (loaded at the same resistive point).

The information about Denon having higher voltage values than stated was from none other than the Needle Doctor, Jerry Raskin:

Quote from: Jerry Raskin

"The owners manual claims in both English and Japanese I.6mV output. But when I tested the cartridge it produced a 2.2mV output. That's the difference between being easy to use, or a tweak cartridge. I've always suspected the output was higher then claimed."

TheChairGuy

Re: Best phono pre-amp for Denon cartridge
« Reply #7 on: 30 Aug 2008, 11:37 pm »
and as long as i'm embarrassing myself asking stupid questions, please allow one more. i was looking at perhaps the pro-ject phonobox se II phono amp. it lists these specs:

Input impedance, MM: 120, 220, 340 and 440pf/47kohm
Input impedance, MC: 17, 18, 20, 22, 69, 100 and 220ohms/120pF

am i supposed to be somehow matching these specs up with the specs on my cartridge? if so, how? or is it just more of a "we have a lot of settings for you to fiddle with and see which sounds best" sort of thing?

I never want anyone that posts here to feel out of place at the Vinyl Circle - nor should they squelch any urge to ask a question.  This is an inclusive circle, not exclusive. Vinyl isn't plug in and play - one reason the world embraced CD some 25 years ago was the tweeky and unforgiving nature of vinyl playback.  Not only do you have super delicate pinpoint styli to be careful of.....but footfalls, airborn/speaker feedback, additional room in your equipment area, no remote control, balancing the tonearm for the right vertical tracking force (and anti-skate), etc need to be managed.  F-r-u-s-t-r-a-t-i-n-g  :? 

It's just great that so many are either coming back to vinyl (as I did) or finding it for the first time...as it's clearly not as easy as CD playback to do....it still exists because it sounds bloody better.  As you learn more, you can dial it in better still  8)

Beyond all of the above comes the correct resistive and capacitive points for every cartridge.  This is very tweeky stuff - growing up I knew nothing of this and I totally enjoyed my vinyl.  But, if you want to futz and get the bet possible playback for every cartridge you own, you'll want to learn what pf (picofarads.....the level of capacitive loading required) and ohms (the level of resistive loading required).

Even if you don't know what these are or how to use them initially - it's great to have a phono stage with them on them for the future when you feel more comfortable with them.

You mentioned the Benz HOMC....that would need to be used in the MM (Moving Magnet) input.  There seems no capacity to play with the resistance loading in the MM jacks...so you will use the Benz at de facto 47K innate at those rca jacks. The Benz will be non-reactive to capacitive loading, so toggle all the values from 120 to 440pf and it probably won't make a difference.  I'd leave them at 440pf for the Benz (complicated reason why....but feel free to experiment otherwise if you like).

Whatever you do, come on back, ask some more questions and get comfortable with the highest resolution and most natural audio software format yet created.

Regards, John

ratso

Re: Best phono pre-amp for Denon cartridge
« Reply #8 on: 31 Aug 2008, 12:41 am »
thanx john! i have actually always found most hi-fi forums to be really friendly places and it seems to be the same here! funny, i always said i would NEVER do vinyl (but i used to say the same thing about tubes too haha) but i sure am looking at it hard these days...

TONEPUB

Re: Best phono pre-amp for Denon cartridge
« Reply #9 on: 31 Aug 2008, 12:57 am »
I've used the Dynavector P-75 a lot with the Denon 103 and it's a very
nice match...



Listens2tubes

Re: Best phono pre-amp for Denon cartridge
« Reply #10 on: 31 Aug 2008, 01:25 am »
I used a Dynavector 10x5 with 2.5 mV output and always felt it needed just a tad more gain than the 30dB of MM phono stage.

TheChairGuy

Re: Best phono pre-amp for Denon cartridge
« Reply #11 on: 31 Aug 2008, 01:57 am »
thanx john! i have actually always found most hi-fi forums to be really friendly places and it seems to be the same here! funny, i always said i would NEVER do vinyl (but i used to say the same thing about tubes too haha) but i sure am looking at it hard these days...

Yeah, I know about 'NEVER', too.

Up until 5 years ago I, too, said never to tubes.  Then I bought a nice (tube) preamp with regulated power supplies for each tube and realized tubes don't have to sound soft.

Two years ago I fell hard for tube amps (regulated, again).  Fabulous fellows they are  :thumb:

I left vinyl for about 4 years...the worst years of my music-loving life  :cry: 

I was encouraged to come back to vinyl from reading Audio Circle (specifically Vinyl Circle).  It wasn't long before I was into it - more sold than ever before. I either learned or re-learned a few tips on improving my (vinyl) listening experience.  There's no going back now  :violin:

John

lazydays

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  • Posts: 1365
Re: Best phono pre-amp for Denon cartridge
« Reply #12 on: 31 Aug 2008, 06:13 pm »
Hey Mike,

The Denon DL-110 is an MC (Moving Coil) due to it's output (which is officially 1.6v, but Denon's notoriously and mostly wonderfully spec higher by some 30% typically) you can and should use an MM (Moving Magnet) input to achieve adequate gain/volume. The real voltage of the DL-110 is closer to 2.2mv. 

Your cartridge is what is known as a High Output Moving Coil...suitable for use with MM inputs. I own the DL-160, which outputs the same as the DL-110, and use it into an MM input stage.

If you use your Denon with an MC input stage....you will have plenty of volume, which might sound exciting for a time, but within a minute or so you will know the sound is overcooked (too much gain).  As well, an MM stage will be loaded at a resistive input of 47,000 ohms....and an MC input stage at (typically) 100 ohms.  Among other spatial effects, if you load your Denon at too low a resistive input, the treble (most notably) will be quite nearly cut out of the sonic picture and the presentation of the whole cartridge will sound very weird (not lifelike)  :(

No harm in you trying your DL-110 into the MC stage (it isn't likely to create any long term harm), but you'll end up with your DL-110 into an MM input stage of whatever phono preamp of your choosing.

I hope this makes sense to you - it's difficult in the beginning to take on this new vinyl 'language'.  Don't fret - not much done can kill anything - except the painfully obvious....like whacking your cantilever off errantly (has happened to most of us in our long years of vinyl-phooldom).

Back to your question....for your Denon, you really don't need to buy a phono preamp with a MC stage, only an MM stage is needed.  Those phono preamps with an MC stage, at this point, offer to you the flexibility to use a lower output moving coil in the future without buying a new phono preamp.

Don't fret or sweat - keep asking questions and tinkering to understand - and keep at it.  We know it's a lot more to understand than plugging in your CDP into a jack on your SET, but vinyl is still the best and most natural front end available to us audiophools today and it's worth overcoming the technical hurdles to getting it right.  Very few of us go thru this ritual because we are nostalgic - we all go thru it because we believe it is worth it to get the most from our audio systems.

If I have successfully managed 90% of them now (100% is quite difficult to achieve) - believe me - anybody can  :icon_lol:

John

I've owned a couple Denons, and have used several different phono preamps with them. I'm currently using a Wright WP100 with my low output D103. I have had a D160 in the past, and have also used it with the Wright and a top of the line one from AVA. There's been two or three others inbetween that I just didn't like. The AVA is quieter than the Wright, but lacked enough gain for the D103. On the other hand the D160 works well with the AVA, and really seemed to enhance the sound quality. The D110 and the D160 are both Denon high output moving coil cartridges. But now I'm heading off into another direction with a new one being built right now
gary

macrojack

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Re: Best phono pre-amp for Denon cartridge
« Reply #13 on: 31 Aug 2008, 08:33 pm »
I use a Denon DL-103 in the table pictured to your left. I run it through a Mitchell Cotter MK2L step-up into a Bellari VP-129. Considering the price of the Bellari, the reproduction is phenomenal.

philltubes

Re: Best phono pre-amp for Denon cartridge
« Reply #14 on: 31 Aug 2008, 09:46 pm »
Many use the Jolida JD-9 with the 103, very flexible with loading options, another is the Rogue Stealth, it's also very flexible with loading options.  Both can be had used at a good price.  The Cinemag transformers work very well with the 103 and an MM phono stage.

Phill

WGH

Re: Best phono pre-amp for Denon cartridge
« Reply #15 on: 31 Aug 2008, 10:02 pm »
The Cinemag transformers work very well with the 103 and an MM phono stage.

Phill

Jim Hagerman makes a Cinemag step-up
http://www.haglabs.com/stepup.html

"The StepUp transformer is built around the CineMag CMQEE03440A, with the primaries wired in series to provide three selectable gain settings. Each gain setting has been tuned for optimal transient response via secondary loading. In addition, the cartridge can be selectively loaded through the use of primary side resistors. This split-loading topology maintains proper gain and bandwidth of the transformer for all configurations. Select the gain you need, then adjust loading to taste."

Though I have not heard it, based on his other products including his excellent Cornet2 phono pre-amp (which I own) and always positive reviews, I think this step-up would be one of the best designs available.

Wayne

TheChairGuy

Re: Best phono pre-amp for Denon cartridge
« Reply #16 on: 31 Aug 2008, 11:32 pm »
Tagging along with Wayne/WGH's comments...I asked Jim Hagerman about his step-ups recently:

http://www.audiocircle.com/index.php?topic=58929.0

John

Toka

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Re: Best phono pre-amp for Denon cartridge
« Reply #17 on: 1 Sep 2008, 01:35 am »
Strictly for the sake of balance, here is another source for a pre-built, Cinemag-derived SUT:

http://www.toonstudio.com/bobsdevices/index.htm

lazydays

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Re: Best phono pre-amp for Denon cartridge
« Reply #18 on: 1 Sep 2008, 04:28 pm »
the real problem with stepup transformers is the add on price tag. A good one's going to cost you well over $300, and then you add that to whatever you paid out for the phonostage. It's not hard to have $850 or way more. I went with the Wright just because I liked the way it sounded; no more no less. I've retubed it three times now (6E5's are cheap). The AVA was much quieter and maybe a little more open than the Wright, but with the 103 I had to really crank the volume up. Anyway like I said I'm having a new one built, and it'll be here in about six weeks (fingers crossed). I'll probably keep the Wright for an impending major upgrade to my bedroom system, and put the AVA on Audiogon along with a bunch of other stuff. So where does all this lead us? In the end I wish I'd just bought the bullet and bought a really good one in the first place. Something like the Conrad Johnson or Audio Research (the AVA will run with these guys if you don't need a bunch of gain).
gary

TheChairGuy

Re: Best phono pre-amp for Denon cartridge
« Reply #19 on: 1 Sep 2008, 06:09 pm »
Strictly for the sake of balance, here is another source for a pre-built, Cinemag-derived SUT:

http://www.toonstudio.com/bobsdevices/index.htm


Good link, Toka...$389.00 for Cinemags are pretty dang good deal based on what I've seen in the marketplace  :thumb:

John