DSM Humboldt Simplifier Deluxe Guitar Preamp with FX Loop and Direct Out 750122746910 | eBay
Ultrasound Amplifiers DI Plus Pre-Amp Unit
Preamps / DI
DI Max - Ultrasound Amplifiers DI Max - Audiofanzine
UltraSound DI Max Acoustic Guitar Preamp - DjangoBooks.com
Listen to D-28 K&K with Ultrasound DI Max by MaurysMusic in K&K Pure Mini: Red-Eye preamp vs Ultrasound DI Max vs K&K Pure XLR Preamp vs Baggs Para DI playlist online for