New GR Neo 3 tweeters are here.

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WC

Re: New GR Neo 3 tweeters are here.
« Reply #200 on: 8 Aug 2018, 07:13 pm »
I guess I wasn’t clear in my question. I realize a narrow baffle typically images better. If you set the Neo3 and Neo10 on a narrow baffle over the dual H-frame instead of over woofers like the M165/16’s on a narrower baffle, would the imaging suffer some due to the width of the H-frame underneath or would the dual 12” woofers make up for it.

Danny Richie

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Re: New GR Neo 3 tweeters are here.
« Reply #201 on: 8 Aug 2018, 07:38 pm »
I guess I wasn’t clear in my question. I realize a narrow baffle typically images better. If you set the Neo3 and Neo10 on a narrow baffle over the dual H-frame instead of over woofers like the M165/16’s on a narrower baffle, would the imaging suffer some due to the width of the H-frame underneath or would the dual 12” woofers make up for it.

Oh I get what you're asking now. No, the Dual 12's below will have little effect on it. It will still be really good.

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #202 on: 8 Aug 2018, 08:08 pm »
If I understand correctly the Super 7 has a wider baffle than some other GR speakers.  So if I want better imaging, are there flat packs available for GR models with a narrower baffle?

I've been aware of the Super V and it's great reputation for some time, but don't know much about other GR Research speakers and what's available.

Danny Richie

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Re: New GR Neo 3 tweeters are here.
« Reply #203 on: 8 Aug 2018, 08:45 pm »
If I understand correctly the Super 7 has a wider baffle than some other GR speakers.  So if I want better imaging, are there flat packs available for GR models with a narrower baffle?

I've been aware of the Super V and it's great reputation for some time, but don't know much about other GR Research speakers and what's available.

We will be re-releasing the Wedgie as a kit soon. We just revisited the baffle design with a thicker front baffle and our new GR Neo tweeter. It is the ultimate in small baffles.

https://www.audiocircle.com/index.php?topic=155092.msg1679963#msg1679963

The original build and design thread: https://www.audiocircle.com/index.php?topic=126112.0

Also don't overlook my favorites. The NX-Otica and NX-Treme. These speakers are super transparent.

Original design thread: https://www.audiocircle.com/index.php?topic=138009.0

Testing complete and shipping kits: https://www.audiocircle.com/index.php?topic=141654.0

A build thread: https://www.audiocircle.com/index.php?topic=143221.0

NX-Treme testing: https://www.audiocircle.com/index.php?topic=145270.0


Captainhemo

Re: New GR Neo 3 tweeters are here.
« Reply #204 on: 8 Aug 2018, 08:57 pm »
If I understand correctly the Super 7 has a wider baffle than some other GR speakers.  So if I want better imaging, are there flat packs available for GR models with a narrower baffle?

I've been aware of the Super V and it's great reputation for some time, but don't know much about other GR Research speakers and what's available.

We'll soon have  some  stock on the   new  /  revised  Wedgie design, think   info on it can be  found  earlier in this  thread.   Will go have a  look  and post  a  link  danny beat me to it   :thumb:

Will also have some limited stock (first run) on the  single Neo10/Neo3 monitors see in this thread.  Rich (HAL) will also have  an active version of these..

there is also the  NX series kits ,  info  here https://www.audiocircle.com/index.php?topic=153434.msg1640026#msg1640026
If you  are interested in   these, contact me   about  delivery times.  We've got some parts  in stock,  some  needs to be  cut and we  can do that,   I've just been busy on other  stuff and haven't  done  any  dditonal runs on these.

We've also got the   H-frame flat packs which can be found here
https://www.audiocircle.com/index.php?topic=139480.0

super 7  packs  are  coming   too
https://www.audiocircle.com/index.php?topic=159096.0

jay

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #205 on: 8 Aug 2018, 09:57 pm »
Thanks for the info.  I did a quick scan through some of the links, those all look fantastic, great work!  Lots of reading to do. 

Danny Richie

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Re: New GR Neo 3 tweeters are here.
« Reply #206 on: 8 Aug 2018, 10:01 pm »
Thanks for the info.  I did a quick scan through some of the links, those all look fantastic, great work!  Lots of reading to do.

Those models sound fantastic.

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #207 on: 8 Aug 2018, 10:13 pm »
They all sound fantastic but there are differences obviously.  Would need to get some info on that first, maybe through PM.  Initial thoughts are start with H-frame flat packs to make OB servo subs and use with current speakers.  If that build goes smooth then maybe add Wedgie or NX-Otica.  Or better to just go with Super 7?


Danny Richie

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Re: New GR Neo 3 tweeters are here.
« Reply #208 on: 8 Aug 2018, 10:37 pm »
They all sound fantastic but there are differences obviously.  Would need to get some info on that first, maybe through PM.  Initial thoughts are start with H-frame flat packs to make OB servo subs and use with current speakers.  If that build goes smooth then maybe add Wedgie or NX-Otica.  Or better to just go with Super 7?

Give me a call and let's chat about them all. That would be faster and easier.

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #209 on: 8 Aug 2018, 10:45 pm »
Thanks, I'll call Friday.
Jeff

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #210 on: 13 Aug 2018, 02:27 pm »
 Jay, what's the best way to connect the Direct Servo Subwoofer Amps (A370PEQ), high level inputs or RCA inputs?

Jeff

Captainhemo

Re: New GR Neo 3 tweeters are here.
« Reply #211 on: 13 Aug 2018, 03:43 pm »
Jay, what's the best way to connect the Direct Servo Subwoofer Amps (A370PEQ), high level inputs or RCA inputs?

Jeff

Typically it's recommended to use the   line level inputs although some  are having good sucess with the high level inputs as well. 
You  need to be careful using the high level inputs with some fully  balanced class d amplifiers,

jay

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #212 on: 13 Aug 2018, 03:56 pm »
Thanks Jay.  I'm pondering the thought of trying a couple of H frame duals to use with my existing speakers.  In my setup it would be more convenient to to run speaker wire from my Mivera SE amp to the subwoofer amps.  Very short run.  Although I could get some 15 foot RCA cables and connect the line level inputs on the sub amps to my preamp. 

And I've read using the high level connection method preservers the character of the amp driving your main speakers into the subs.  That may be faulty info and / or doesn't apply to servo subs, i don't know.

Jeff

Captainhemo

Re: New GR Neo 3 tweeters are here.
« Reply #213 on: 13 Aug 2018, 04:37 pm »
That will work  .... but,  the module in the  Mivera amp is a  fully balanced class  D design.  Run the  neg  high level input of the sub amp  back to chassis ground

There's a  thread regarding this  in  Danny's circle somewhere...  will try  and  find it and post  link

jay

jay

mlundy57

Re: New GR Neo 3 tweeters are here.
« Reply #214 on: 13 Aug 2018, 04:38 pm »
Another issue is wether you use an inline filter to roll off low frequencies to the midrange drivers. If you use this filter, which goes between the preamp and power amp, the midrange drivers can play louder and cleaner since they don’t have to deal with low frequency energy. However, this also means anything else connected to the power amp’s speaker binding posts will not get the low frequency signals, like subwoofers using high level connections.

So if you are going to use an inline filter for the midrange, you have to use line level on the subs from the preamp or whatever you are using as a master volume conrol.

Mike

mlundy57

Re: New GR Neo 3 tweeters are here.
« Reply #215 on: 13 Aug 2018, 04:43 pm »
That will work  .... but,  the module in the  Mivera amp is a  fully balanced class  D design.  Run the  neg  high level input of the sub amp  back to chassis ground

There's a  thread regarding this  in  Danny's circle somewhere...  will try  and  find it and post  link

jay

jay

Or, as I understand it, any fully balanced amp. My PS Audio Stellar amp, which is also based in the IcePower amp, has this same issue.

mikeeastman

Re: New GR Neo 3 tweeters are here.
« Reply #216 on: 13 Aug 2018, 04:48 pm »
I have the Mivera amp and the bottom end of my Super7s uses the Direct Servo Subwoofer Amps (A370PEQ) and Danny told my the line level is the best to use in that case. Right now I split the signal in my pre with high pass caps on the out to my mains and send the balanced signal thought a Jensen Iso Max to convert to RCA to send to the subs. This is what Mike at Mivera recommended.

Captainhemo

Re: New GR Neo 3 tweeters are here.
« Reply #217 on: 13 Aug 2018, 04:49 pm »
Here's that link
https://www.audiocircle.com/index.php?topic=156711.msg1677051#msg1677051

MikeE,  yeah, that's what I'd recommend as well.  I've been  meaning to grab  a pair of the  Isolation transformers too,  would  like to  give them a try.

MikeL,   yes, same  issue but  different modules.  both made by B&O but very different  sounding.

jay

mlundy57

Re: New GR Neo 3 tweeters are here.
« Reply #218 on: 13 Aug 2018, 05:08 pm »
Here's that link
https://www.audiocircle.com/index.php?topic=156711.msg1677051#msg1677051

MikeE,  yeah, that's what I'd recommend as well.  I've been  meaning to grab  a pair of the  Isolation transformers too,  would  like to  give them a try.

MikeL,   yes, same  issue but  different modules.  both made by B&O but very different  sounding.

jay

Jay,

It doesn't surprise me they sound different. I don't know how Mivera uses the module but PS Audio does some major reworking. It would be interesting to listen to the two amps side by side.

In my case, my Stellar preamp has both balanced and single ended outputs so I can run the balanced output through a balanced filter (needs 2 caps per channel) then into the balanced inputs on the power amp and the single ended outputs directly to the A370 plate amp.

Mike

Hear Clifford Brown

Re: New GR Neo 3 tweeters are here.
« Reply #219 on: 13 Aug 2018, 08:11 pm »
Yes, I remember Mike from Mivera posting in the Mivera forums a description and link to the Jensen Iso Max transformers.  With this added info I'd follow the method Mike Eastman is using.