SS or Tube Preamps with Dual-Balanced outputs

The Rowland stuff is great. Dave is right with this one!!

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 (option? 1 Bal-XLR, 1 Unb-RCA std)
?Jeff Rowland Concerto (std)
?Jeff Rowland Criterion (std)
?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)

Well there is a list with fully balanced pre's noted by the asterisk.
Please feel free to correct any mistakes, I visited the websites of these companies to assertain the fully balanced feature.

Here's some correction for Esoteric and JRDG:

** 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

Guidocorona,
Thanks for corrections, are you certain about the rowland gear, I read on their website transformer coupled, I don't know enough about circuitry so I may be wrong, but I thought that when preamp is not fully balanced it uses transformer in there to create a balanced output.
Please educate me.

Rowland components have been differentially balanced since at least early nineties. So much so that the TI Burr Brown OPA1632 module used in Capri and Criterion is a differentially balanced OP Amp. G.

Thanks Guidocorona.

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)

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)$6,500 --$3,810
**Aesthetix Calypso (2 xlr) $4,500 --$2,840
**AtmaSphere Music Preamplifier MP3 (option) $4,750 --$2,500
**AtmaSphere New Music Preamplifier MP1 Mk. III (option) $13,000 --$8,000
Audio Horizons TP 2.1 (option) $2,095 --$1,150
**Audio Research LS26 (2 xlr) $6,000 --$4,000
**Audio Research Reference 3 (2 xlr) $10,000 --$5,500
Audionet Pre G2 (2 xlr)
Audiovalve Eklipse (unbalanced at 1 xlr) $4,600
**Ayre KX-R (2 xlr) $18,500 --$10,000
**BAT 51 SE (? xlr) $9,000 --$4,300
**BAT 52 SE (2 xlr) $10,500 --$6,800
**BAT REX (2 xlr) $20,000 --$12,600
?Belles 28A (No info, The 21 has 1 xlr unbalanced)
**Cary slp05 (on special order) $7,500 --$4,000
**Classe CP700 (2 xlr) $7,000 --$3,750
**Classe CP500 (1xlr) $3,500 --$2,000
?Esoteric C03 PreAmp (new)(1 xlr output)
?Jeff Rowland Capri (option? 1 Bal-XLR, 1 Unb-RCA std) $2,700 --$2,000
?Jeff Rowland Concerto (std) $3,900 --$2,600
?Jeff Rowland Criterion (std) $18,000 --$12,000
?Herron Audio (not balanced)
**Mcintosh C500 (2 xlr) c500t $12,000 --$7,600
?Music First Audio MK II Preamplifier (TVC)
?Music First Audio Reference Preamplifier (TVC, Appears to have 2 xlr)
?Pass Labs XP20 (1 xlr) $8,600 --$5,300
?Plinius Tautoro (2 xlr) $8,350 --$5,200
Promitheus Audio Reference Ccore TVC (option)
?Rogue Audio Hera (2 xlr)
**SimAudio P7 $5,500 --$4,000
**Simaudio P8 (2 xlr)$11,000 --$7,600
?Sonic Frontiers Line3 $5,000 --$2,400
?Sonic Frontiers line3 se $6,000 --$3,200
?Supratek Dual Cabernet (appears as 1 xlr)
**VAC Phi Beta (2 xlr) $15,000 --$7,500
**VTL 7.5 (2 xlr) $10,000 --$7,000
**VTL 7.5 sII $16,000 --$8,800
**?YS Audio BALANCED A2 (2 xlr) a2se $1,500 --$750

Well there is a list with fully balanced pre's noted by the asterisk.
Please feel free to correct any mistakes, I visited the websites of these companies to assertain the fully balanced feature.

Jeff Rowland Pre info as follows:

** Criterion:
Main out: 2 pair Balanced (XLR), 2 pair Unbalanced (RCA)
Record out: 1 pair Balanced (XLR), 1 pair Unbalanced (RCA)
Note that Price of $12,000 used is hypothetical. . . there have been no used Criterions on the market yet as far as I know, and I'm not selling mine (grins!) .

** Capri:
1 x Pair Balanced Line Level, 1 x Pair Unbalanced Line Level

** Concerto
Outputs....................................................................................................................................2 x Pair Balanced Line Level

G.

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!

Joule-Electra LA-450 ME, issued a few weeks ago.
Superb!

Thanks Dob!