Samson SAM4U MediaTrack 4-Channel Rackmount Mixer USB Interface

The Samson MediaTrack SAM4U is engineered for the operator who needs a disciplined, low-footprint mixing and interfacing solution without building a full console around a single voice. As a 4-channel half-rack unit, it covers the core signal chain for podcast production, broadcast inserts, livestream hosting, and small installed AV systems — accepting everything from a balanced microphone to a Bluetooth phone stream and routing it cleanly to USB, analog outputs, or both simultaneously. The voiceover ducking circuit is the centrepiece feature: it listens to the mic channel and pulls back the stereo line mix automatically, with a variable hold time, giving single-operator setups the feel of a properly mixed show without a second pair of hands on the faders.

Build quality is consistent with Samson's half-rack product line — compact, road-tolerant, and installation-friendly. The included rackmount kit means it slots into a standard rack alongside other gear rather than sitting loose on a desk. Connectivity spans the practical range: XLR/1/4" balanced mic input, stereo line input with RCA, 1/4", and 1/8" jacks, Bluetooth for mobile streaming, a Samson XPD Series USB port for wireless system integration, and USB output for computer-based recording. For home studios, podcast suites, and AV closets where a full mixer would be overkill and a simple interface would leave you short on routing flexibility, the SAM4U occupies a genuinely useful middle position in the signal chain.