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Samson SAM4U MediaTrack 4-Channel Rackmount Mixer USB Interface — main product image
Samson SAM4U MediaTrack 4-Channel Rackmount Mixer USB Interface
Samson SAM4U MediaTrack 4-Channel Rackmount Mixer USB Interface
Samson SAM4U MediaTrack 4-Channel Rackmount Mixer USB Interface
Samson

Samson SAM4U MediaTrack 4-Channel Rackmount Mixer USB Interface

XLR

The Samson MediaTrack SAM4U puts broadcast-ready mixing and USB audio interfacing in a single half-rack unit built for podcasters, home studios, and live AV rigs.

$249.99*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 19, 2026.Price and availability are subject to change.

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Overview

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.

Key Features

4-Channel half-rack stereo line mixer

USB interface for connecting with computers or tablets

XLR-1/4" balanced microphone input

Stereo line channel with RCA, 1/4" and 1/8" (3.5mm) inputs

Bluetooth connectivity to wirelessly stream from a mobile device

Samson XPD Series USB Port (wireless system sold separately)

Voiceover control with priority ducking and variable hold time

Rackmount kit and power adapter included

Specifications

Type
4-Channel Half-Rack Stereo Line Mixer + USB Interface
Channels
4
Mic Input
XLR / 1/4" balanced combo
Stereo Line Inputs
RCA, 1/4", 1/8" (3.5mm)
USB
Yes — computer/tablet audio interface
Bluetooth
Yes — wireless mobile device streaming
Wireless System Port
Samson XPD Series USB (receiver sold separately)
Voiceover Ducking
Priority ducking with variable hold time
Form Factor
Half-rack
Includes
Rackmount kit, power adapter
Brand
Samson
Model
SAM4U / MediaTrack

Pros & Cons

👍 Pros

  • The balanced XLR/1/4" mic input preserves signal integrity from the source, reducing noise pickup on long cable runs in live or installed settings.
  • Voiceover priority ducking automates the mix during single-operator broadcasts or podcasts, eliminating manual gain riding.
  • Bluetooth input removes the need for a physical line cable when streaming from a phone or tablet, cleaning up the signal chain on a busy desk.
  • USB audio interface functionality routes a clean digital feed to a DAW or streaming software without requiring a separate audio interface.
  • Half-rack form factor with included rackmount kit integrates into existing equipment racks without consuming a full rack unit.

👎 Cons

  • As a half-rack unit, the SAM4U offers only one dedicated mic input — sessions requiring multiple simultaneous mic channels will need additional hardware.
  • The channel count limits complex live mixing scenarios where four discrete channels aren't sufficient for full band or multi-source production.
  • Phantom power availability for condenser microphones is not confirmed in the product specs, which may constrain microphone selection.
  • The onboard preamp headroom and self-noise floor are not published, making it difficult to evaluate performance against dedicated interface-grade preamps for critical studio tracking.
  • Bluetooth audio is subject to codec-dependent latency, which may not be suitable for real-time monitoring — better suited to playback-only use cases.

Frequently Asked Questions

The SAM4U's XLR/1/4" balanced mic input supports standard gain staging for dynamic microphones, but the product specs do not confirm onboard phantom power (+48V). If you're running a condenser mic, verify phantom power availability before purchasing — you may need an inline phantom power supply or a condenser that operates on plug-in power via the 1/8" input path.
The priority ducking circuit monitors the mic channel and automatically attenuates the stereo line inputs when you speak, then holds the attenuation for a variable hold time you set. This means your music, playback audio, or background mix dips under your voice without manual fader riding — useful for broadcast, livestream hosting, or podcast production where a single operator is running the board.
Yes. The USB interface routes audio digitally to your computer or tablet while the analog mix bus continues to operate through the line outputs. This lets you record a clean signal to your DAW while still feeding a PA, monitors, or a streaming encoder from the analog outputs.
Any Bluetooth-enabled mobile device — phone, tablet, or laptop — can stream audio wirelessly to the stereo line channel. This eliminates the need for a physical cable when playing back music, soundboards, or reference tracks from a mobile source during a session or live event.
Yes. The dedicated Samson XPD Series USB port allows you to plug in a compatible Samson XPD wireless receiver directly into the mixer, adding a wireless mic or instrument channel without occupying a separate USB port on your computer. The wireless system is sold separately.

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