What phono preamps are balanced

And here is a list of line stages with true balanced circuits.

** 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) 6.5
**Aesthetix Calypso (2 xlr) 4.5
**AtmaSphere Music Preamplifier MP3 (option) 4.7
**AtmaSphere New Music Preamplifier MP1 Mk. III (option) 13
Audio Horizons TP 2.1 (option) 2.0
**Audio Research LS26 (2 xlr) 6.0
**Audio Research Reference 3 (2 xlr) 10
**Audio Research Reference 5 (2 xlr) 12
Audionet Pre G2 (2 xlr)
Audiovalve Eklipse (unbalanced at 1 xlr) 4.6
**Ayre KX-R (2 xlr) 18
**BAT 51 SE (? xlr) 9
**BAT 52 SE (2 xlr) 10
**BAT REX (2 xlr) 20
?Belles 28A (No info, The 21 has 1 xlr unbalanced)
**Cary slp05 (on special order) 7.5
**Classe CP700 (2 xlr) 7
**Classe CP500 (1xlr) 3.5
?Esoteric C03 PreAmp (new)(1 xlr output)
?Jeff Rowland Capri (option? 1 Bal-XLR, 1 Unb-RCA std) 2.7
?Jeff Rowland Concerto (std) 3.9
?Jeff Rowland Criterion (std) 18
?Herron Audio (not balanced)
**Mcintosh C500 (2 xlr) c500t 12
?Music First Audio MK II Preamplifier (TVC)
?Music First Audio Reference Preamplifier (TVC, Appears to have 2 xlr)
?Pass Labs XP20 (1 xlr) 8.6
?Plinius Tautoro (2 xlr) 8.3
Promitheus Audio Reference Ccore TVC (option)
?Rogue Audio Hera (2 xlr)
**SimAudio P7 5.5
**Simaudio P8 (2 xlr) 11
?Sonic Frontiers Line3 5
?Sonic Frontiers line3 se 6
?Supratek Dual Cabernet (appears as 1 xlr)
**VAC Phi Beta (2 xlr) 15
**VTL 7.5 (2 xlr) 10
**VTL 7.5 sII 16
**?YS Audio BALANCED A2 Se (2 xlr) 1.5

This 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.

ASR Basis Exclusive , Balanced in and out. The latest version is great.

ARC Ref 2 phono does not have balanced phono inputs, only outputs.

Pedrillo et al,
I am fairly certain that the Aesthetix Rhea does NOT contain a balanced phono amplification circuit. The Io does. I am also dubious about the Aqvox (read the promos carefully) and the PS Audio GCPH. (Someone will no doubt correct me if I am wrong.) All of these offer XLR inputs or outputs or both, but they are not necessarily balanced internally. As has been written here ad nauseam, if the internal circuitry is not actually balanced, there is little to be gained by using XLR connectors. I researched the Pass Xono, but I never could figure out whether it was true balanced or not.

I think I misspoke. After further investigation it seems the Aqvox is balanced for MC inputs and single-ended for MM cartridges.