SS or Tube Preamps with Dual-Balanced outputs


I vertically bi-amp; I am looking for recommendations on fully balanced pre-amps that offer the ability to have 2 simultaneous balanced outputs. I am look for a full balanced circuit (some call this quad-balanced I believe).

Currently, I've been using a Classe CP-700 with excellent results for over a year and half. I like the Classe's build quality, separate power supply, air, clarity, imaging, musicality, etc...very much.

What other SS or Tube pre-amps offer dual-balanced outputs
with great imaging and other desirable sonic attributes?

Thanks!
128x128Ag insider logo xs@2xzephyr24069

Showing 18 responses by zephyr24069

Where can I find product info? FYI...I don't need a phono
stage if that matters for purposes of a recommendation.
Thanks, for taking the time to respond; please take a look at my system and let me know what you think. I'll check out the Plinius and have also received offline recommendations for the new Pass Labs XP-20 and Atma Sphere as well. Any thoughts you can share would be appreciated. Thanks!
As of now, the combined list of recommendations I've received (no particular order) is listed below. I need to determine which also offer balanced inputs;

- Herron Audio
- Pass Labs XP-20
- Plinius Tautoro
- Atma-Sphere Music Preamplifier MP-3 (option)
- Atma-Sphere New Music Preamplifier MP-1 Mk. III (option)
- Aesthetix Calypso
- Aestehtix Janus
- SimAudio P7 or P8
- Sonic Frontiers Line3
- Audio Research LS26
- Audio Research Reference 3
- Audiovalve Eklipse
- BAT REX
- BAT 52 SE
- Mcintosh C500
- Belles 28-A
- Audionet Pre G2
- VAC Phi Beta
- Audio Horizons TP 2.1 (option)
- Rogue Audio Hera
- Promitheus Audio Reference C-core TVC (option)
- Music First Audio MK II Preamplifier (TVC)
- Music First Audio Reference Preamplifier (TVC)
Cappuccino/Pedrillo/Dcstep: Apologies for the late replies...I've been off the boards for several days due to work and 'life' time commitments. I appreciate the feedback you've given above.

The revised list is currently;

Accuphase C-2810
Accuphase C-2410
Aestehtix Janus
Aesthetix Calypso
AtmaSphere Music Preamplifier MP3 (option)
AtmaSphere New Music Preamplifier MP1 Mk. III (option)
Audio Horizons TP 2.1 (option)
Audio Research LS26
Audio Research Reference 3
Audionet Pre G2
Audiovalve Eklipse
Ayre KX-R
BAT 51 SE
BAT 52 SE
BAT REX
Belles 28A
Cary slp05 (on special order)
Classe CP700 and CP500
Esoteric C03 PreAmp (new)
Jeff Rowland Concerto (std)
Jeff Rowland Criterion (std)
Herron Audio
Mcintosh C500
Music First Audio MK II Preamplifier (TVC)
Music First Audio Reference Preamplifier (TVC)
Pass Labs XP20
Plinius Tautoro
Promitheus Audio Reference Ccore TVC (option)
Rogue Audio Hera
SimAudio P7 or P8
Sonic Frontiers Line3
Supratek Dual Cabernet
VAC Phi Beta
VTL 7.5
YS Audio BALANCED A2
You are welcome; I am glad to hear that it helped.

I've heard the same on Atma-Sphere. I believe the
SimAudio P7 and P8 are as well. My Classe CP-700
is full balanced and dual-mono for future reference.

If you come across any of these and can share your listening
experience, please let me know.

According to the Esoteric webiste, they are about to (or already) have introduce the C-03 full balanced dual-mono pre-amp built to the same specs, etc...as the P03, D03 and G-0Rb separates. There is a presentation on their site with some interesting photos and marketing bullets.

That makes the list;

- Herron Audio
- Pass Labs XP-20
- Plinius Tautoro
- Atma-Sphere Music Preamplifier MP-3 (option)
- Atma-Sphere New Music Preamplifier MP-1 Mk. III (option)
- Aesthetix Calypso
- Aestehtix Janus
- SimAudio P7 or P8
- Sonic Frontiers Line3
- Audio Research LS26
- Audio Research Reference 3
- Audiovalve Eklipse
- BAT REX
- BAT 52 SE
- Mcintosh C500
- Belles 28-A
- Audionet Pre G2
- VAC Phi Beta
- Audio Horizons TP 2.1 (option)
- Rogue Audio Hera
- Promitheus Audio Reference C-core TVC (option)
- Music First Audio MK II Preamplifier (TVC)
- Music First Audio Reference Preamplifier (TVC)
- Esoteric C-03 Pre-Amp (new)
- Classe CP-700 and CP-500
Pedrillo: Thanks for the info. The P-5 is a discontinued model, correct? I've also heard the P-5LE and Celeste 5002 were great designs. Did you ever get a chance to listen to those or is your P5 an LE? Thanks again!
Thanks everyone! As of today, the combined list is;

- Herron Audio
- Pass Labs XP-20
- Plinius Tautoro
- Atma-Sphere Music Preamplifier MP-3 (option)
- Atma-Sphere New Music Preamplifier MP-1 Mk. III (option)
- Aesthetix Calypso
- Aestehtix Janus
- SimAudio P7 or P8
- Sonic Frontiers Line3
- Audio Research LS26
- Audio Research Reference 3
- Audiovalve Eklipse
- BAT REX
- BAT 52 SE
- BAT 51 SE
- Mcintosh C500
- Belles 28-A
- Audionet Pre G2
- VAC Phi Beta
- VTL 7.5
- YS Audio BALANCED A2
- Audio Horizons TP 2.1 (option)
- Rogue Audio Hera
- Promitheus Audio Reference C-core TVC (option)
- Music First Audio MK II Preamplifier (TVC)
- Music First Audio Reference Preamplifier (TVC)
- Esoteric C-03 Pre-Amp (new)
- Classe CP-700 and CP-500
Thanks Vladimir! Updated list (now sorted, finally!);

Accuphase C-2810
Accuphase C-2410
Aestehtix Janus
Aesthetix Calypso
AtmaSphere Music Preamplifier MP3 (option)
AtmaSphere New Music Preamplifier MP1 Mk. III (option)
Audio Horizons TP 2.1 (option)
Audio Research LS26
Audio Research Reference 3
Audionet Pre G2
Audiovalve Eklipse
Ayre KX-R
BAT 51 SE
BAT 52 SE
BAT REX
Belles 28A
Classe CP700 and CP500
Esoteric C03 PreAmp (new)
Herron Audio
Mcintosh C500
Music First Audio MK II Preamplifier (TVC)
Music First Audio Reference Preamplifier (TVC)
Pass Labs XP20
Plinius Tautoro
Promitheus Audio Reference Ccore TVC (option)
Rogue Audio Hera
SimAudio P7 or P8
Sonic Frontiers Line3
Supratek Dual Cabernet
VAC Phi Beta
VTL 7.5
YS Audio BALANCED A2
Good idea....I'll get to this as soon as I can assemble the info. If those of you can contribute what you know, I'll fix the list. BTW, Classe and Esoteric are both dual-mono and fully balanced from input to output. Thanks!
DCstep: my apologies for missing the add of the Capri to the list; it was not intentional. I was trying to take an 'audio sanity break' from an overly busy day at work and added some entries but missed yours. Again, my apologies.
I just took a look at the Capri,...it only seems to offer one set of balanced XLR outputs and 1 unbalanced RCA; does JRDG convert the RCA to a fully balanced XLR 2nd output set as an option?

Guido: Thanks for the thoughts on the fun behind evaluating all these different options and the various families of sound characteristics present amongst the various options.

Sting: Thanks for your thoughts on Ayre. I have friends (albeit other side of the country so cannot go listen) that are wild about Ayre mono's, digital players and the pre-amp listed above....

Audiofeil: Thanks for the information you've shared with me during the times we've talked (2 I think) over the past year or so). I hope all is well in Western NY!

To All: This continues to be a very good learning experience for me and I'm grateful for all the help, experience-based advice, etc...that you've all given.

The current (corrected) list is currently;

Accuphase C-2810
Accuphase C-2410
Aestehtix Janus
Aesthetix Calypso
AtmaSphere Music Preamplifier MP3 (option)
AtmaSphere New Music Preamplifier MP1 Mk. III (option)
Audio Horizons TP 2.1 (option)
Audio Research LS26
Audio Research Reference 3
Audionet Pre G2
Audiovalve Eklipse
Ayre KX-R
BAT 51 SE
BAT 52 SE
BAT REX
Belles 28A
Cary slp05 (on special order)
Classe CP700 and CP500
Esoteric C03 PreAmp (new)
Jeff Rowland Capri (option? 1 Bal-XLR, 1 Unb-RCA std)
Jeff Rowland Concerto (std)
Jeff Rowland Criterion (std)
Herron Audio
Mcintosh C500
Music First Audio MK II Preamplifier (TVC)
Music First Audio Reference Preamplifier (TVC)
Pass Labs XP20
Plinius Tautoro
Promitheus Audio Reference Ccore TVC (option)
Rogue Audio Hera
SimAudio P7 or P8
Sonic Frontiers Line3
Supratek Dual Cabernet
VAC Phi Beta
VTL 7.5
YS Audio BALANCED A2
I vertically bi-amp using two Edge NL 12.1 amps. I need two simultaneously active balanced XLR outputs as my NL12.1's are built with XLR inputs and I'd like to avoid using one pair of RCA->XLR converters not to mention the benefit of utilizing two balanced outputs as opposed 1 bal and 1 un-bal. The Classe CP-700 I utilize does a great job currently in this regard...
Guys....thanks for all of the help and extra info on the Capri to confirm what I had found online. Have a great weekend!
Pedrillo/Guido: Great to hear from you. Thanks for updating the list to answer a key capability I am looking for that I already enjoy in my CP-700. I had reviewed the Esoteric early materials on the C-03 and believe the ** designation is accurate. That would also make alot of sense given their delivery of fully balanced, dual-mono capabilities from start to finish with the P-03/P-03U/D-03 units. Have a great weekend!

The updated list is now;

Here are those with balanced in to out.
** denotes balanced from input to output.
? denotes not known whether balanced throughout.

?Accuphase C-2810 (2 xlr)
?Accuphase C-2410 (2 xlr)
**Aestehtix Janus (2 xlr)
**Aesthetix Calypso (2 xlr)
**AtmaSphere Music Preamplifier MP3 (option)
**AtmaSphere New Music Preamplifier MP1 Mk. III (option)
Audio Horizons TP 2.1 (option)
**Audio Research LS26 (2 xlr)
**Audio Research Reference 3 (2 xlr)
Audionet Pre G2 (2 xlr)
Audiovalve Eklipse (unbalanced at 1 xlr)
**Ayre KX-R (2 xlr)
**BAT 51 SE (? xlr)
**BAT 52 SE (2 xlr)
**BAT REX (2 xlr)
?Belles 28A (No info, The 21 has 1 xlr unbalanced)
**Cary slp05 (on special order)
**Classe CP700 (2 xlr)
**Classe CP500 (1xlr)
** Esoteric C03 PreAmp (new)(1 xlr output)
** Jeff Rowland Capri 1 Bal-XLR, 1 Unb-RCA std)
** Jeff Rowland Concerto (std)
** Jeff Rowland Criterion (std) 2 Bal XLR
?Herron Audio
**Mcintosh C500 (2 xlr)
?Music First Audio MK II Preamplifier (TVC)
?Music First Audio Reference Preamplifier (TVC, Appears to have 2 xlr)
?Pass Labs XP20 (1 xlr)
?Plinius Tautoro (2 xlr)
Promitheus Audio Reference Ccore TVC (option)
?Rogue Audio Hera (2 xlr)
**SimAudio P7 or P8 (2 xlr)
?Sonic Frontiers Line3
?Supratek Dual Cabernet (appears as 1 xlr)
**VAC Phi Beta (2 xlr)
**VTL 7.5 (2 xlr)
**?YS Audio BALANCED A2 (2 xlr)
Thanks for your response and sorry for the delay in responding. I've not been on A-gon due to work in quite a few days; it's great to hear from you!