Black Lion Audio B12A Quad 4-Channel Preamp with Mic and DI Inputs, 1 RU

Black Lion Audio B173 Quad 4-Channel Preamp with Mic and DI Inputs, 2 RU

Black Lion Audio Auteur Quad 4-Channel Microphone Preamplifier and DI

Black Lion Audio Auteur Quad 4-Channel Microphone Preamplifier and DI

Whirlwind pcDIQ 4-Channel DI Stereo Line Interface with Summed Output Buss, Convert Up to Four Unbalanced Sources, 1/4"/3.5mm/RCA Inputs on Each Channel

Universal Audio 4-710d Four-Channel Tone-Blending Mic Preamp with Dynamics

Black Lion Audio Eighteen Channel Strip / Microphone Preamp

Warm Audio WA-412 4-Channel Microphone Pre-Amp with DI

Cloud Microphones Cloudlifter CL-Zi Single Channel DI and Mic Activator with Variable Impedance

Black Lion Audio Eighteen Channel Strip / Microphone Preamp

Thermionic Culture Ltd Rooster 2 2-Channel Valve Preamp with EQ, 10Hz-45kHz Frequency Response, 10kOhms Line Input Impedance

Universal Audio 710 Twin-Finity Single Channel Tone-Blending Mic Preamplifier and DI Box, 20Hz-100kHz Frequency Response, 600 Ohms Output Impedance

Comica Universal Audio LA-610 Analog Tube Mic/Instrument Preamp/Compressor

Ampeg SGT-DI Preamp and DI Pedal

Antelope Audio MP32 32-channel Microphone Preamplifier, 32x Combo XLR/TRS Mic/Line Inputs

Heritage Audio Elite Series HA73EQX2 Dual Channel Full Rack Microphone Preamp with EQ

Lindell Audio EVO-6 Discrete Microphone Preamp

Thermionic Culture Ltd Robin Passive DI Box

Whirlwind 50' Box to Fan 4 1/4" DI and 4 XLR Mic Inputs Medusa MultiSnake Cable

Universal Audio SOLO/610 Classic Tube Preamplifier and DI Box, 20Hz-20kHz Frequency Response, 61dB Gain, 600 Ohms Output Impedance

Universal Audio LA-610 MkII Microphone Preamp & LA-2A-Style Compressor/Limiter, 20Hz-20kHz Frequency Response, 80 Ohms Output Impedance

Focusrite Scarlett OctoPre 8-Channel Dynamic Microphone Preamp

Rolls RP520 Bellari Dual Tube Microphone Preamp

Lindell Audio EVO-6 Discrete Microphone Preamp

Universal Audio LA-610 MkII Microphone Preamp & LA-2A-Style Compressor/Limiter

Universal Audio SOLO/610 Classic Tube Preamplifier and DI Box

Focusrite Scarlett OctoPre 8-Channel Dynamic Microphone Preamp

Art Pro Audio TransX 2-Channel Transformer Isolated Descrete Transistor Preamp

Focusrite Scarlett OctoPre 8-Channel Microphone Preamp

Sonifex RB-LU4 1U Quad Stereo Balanced to Unbalanced Converter, <50Ohms Output Impedance, 20Hz-20kHz, 8x XLR 3 Pin Female Inputs, 8x RCA Phono Outputs

Sonifex RB-LU4 1U Quad Stereo Unbalanced to Balanced Converter, <50Ohms Output Impedance, 20Hz-20kHz, 8x RCA Phono Inputs, 8x XLR 3 Pin Male Outputs