4 Untested RDL FP-MP1 Studio Quality Mic Preamplifier As Is

RDL RU-MLA2 Dual Mic / Line Preamplifier

ART Tube MP Studio Mic Microphone Preamp Pre-Amp - UNIT ONLY, untested

ART USB Dual Pre Project Series 2-Channel Mic Preamp Interface Untested

Auditronics 110B Mic-Line Preamplifier Equalizer pair

TOA M-01 Mic Amp Microphone PreAmp Module 900 Series Used GOOD

BEHRINGER TUBE ULTRAGAIN MIC100 VACUUM TUBE PREAMPLIFIER WITH LIMITER

JuicedLink RM333 Riggy Micro Low-Noise 3 XLR Input Preamp DSLR Cameras Untested