I just called and the answer on repairing Brand X preamps is yes as long as it's tube. Amps and preamps, good deal.
VTL MB-250 Signature monoblocks, Sonic Frontiers SFL-2 preamp, HHb BurnIt Plus, Well Tempered Labs Classic, Ortofon 2M Black, Jolida JD-9 Phono Preamp, Sherwood S3000-IV tuner, VPI-17, Jolida JD-100, AKG 701, Beyerdynamics 881, NHT SW1-P subwoofer and amp, Magnepan 1.6, APC H15
VTL DeLuxe 300 Monoblocks, Harman Kardon F500x tuner, Sonic Frontiers SFL-2 preamp, Jolida JD-100, Oppo 981, Otari MX5050 BII, SVS SB-12 subwoofer, Magnepan 3.6
Stax Sigma headphones, signed DTL unit, Magnepan MMGs, Carver TX-11, TX-11a's