iRig Pre 2 mobile microphone interface for smartphones and DSLR cameras
PMT Buying Guide: Do I Need A Mic Pre-Amp?
Build a tube Mic Pre: Build Your Own Two Channel Vacuum Tube Mic Preamp! | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording
Product Review: iRig Pre HD | Larry Jordan
Amazon.com: Apogee MiC Plus - Studio Quality USB Microphone with Cardioid Condenser Mic Capsule, Built In Mic Pre-Amp & Zero-Latency Headphone Output
Why Microphone Preamps are Important to Shaping Sound - The Broadcast Bridge - Connecting IT to Broadcast
RME QuadMic II 4-Channel Microphone Preamp QUADII B&H Photo Video