TubeOpto 8 – Eight Channel Mic Preamp with ADAT – ART Pro Audio
HAPI8 - 8 channel mic/drum preamp - IGS Audio
Amazon.com: Heritage Audio Super 8 8-channel Mic Preamp : Musical Instruments
Focusrite Scarlett OctoPre Dynamic 8-Channel Mic Preamp Bundled with 4 x 15ft XLR Cables | Great Deals on Musical Instruments and Pro Audio – e2genesis
Millennia HV-3D 8 Channel SolidState Mic – Thomann United States
SPL Crescendo 8-Channel Mic Preamp with 120 Volt Technology – Tidepool Audio