Belles Soloist 3
http://www.avrev.com/home-theater-preamplifiers/stereo-preamps/belles-soloist-3-preamplifier.html
Bryston BP-6
Channel Islands Audio PLC-1 MKII
Densen B-200
http://www.positive-feedback.com/Issue59/densen.htm
Lamm LL2.1 Deluxe
http://www.avrev.com/home-theater-preamplifiers/stereo-preamps/lamm-ll2.1-deluxe-preamplifier.html
Luminous Audio Axiom II Passive
Manley Neo-Classic 300B
Marantz AV7005
Marantz SC-11S1
Musical Fidelity M1 CLiC
Music First Classic V2 Passive Linestage
http://www.tonepublications.com/review/music-first-audio-classic-v2-preamplifier/
Onkyo P-3000R
Peachtree NovaPre
http://www.tonepublications.com/review/peachtree-audio-novapre-and-peachtree220/
Pro-Ject Pre Box & Head Box II
Pro-Ject Pre Box SE
http://www.avrev.com/home-theater-preamplifiers/stereo-preamps/pro-ject-pre-box-se-review.html
Rogue Audio Ninety-Nine
Rogue Perseus Magnum
Rogue Audio Triton & Ares Phono Stages
http://servingthemusic.com/2014/04/21/musings-on-the-rogue-audio-triton-ares-phono-stages/
Tisbury Audio Mini Passive