Rolls MX51s Mini-Mix 2 Four-Channel RCA Mixer

Model: MX51S

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Rolls mx51s 1
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General Information

Input Connections Ch 1: 1 x XLR
Ch 2: 1 x 1/8" (3.5 mm) TRS stereo mini
          2 x RCA phono (1 x L/R)
Ch 3-4: 2 x RCA phono (1 x L/R) each
Output Connections 2 x RCA phono (1 x L/R)
Headphone Output 1 x 1/8" (3.5 mm) TRS stereo mini
(doubles as a line output)
Input Impedance 10KΩ unbalanced
Gain Ch 1: 32 dB
Ch 2-4: 26 dB
Phantom Power Switchable for Ch 1
S/N Ratio > 90 dB
Power Supply 12 VDC adapter, Rolls PS27
Dimensions (W x D x H) 5 x 3 x 1.25" (127 x 76 x 32 mm)
Weight 1.0 lb (0.45 kg)
User Reviews
16 September 2017

I use this at work where I have a couple computers and I want to be able to mix the sound for headphones. It works well for this (sound quality is good) but I have a fair number of adapters, since this has mostly RCA inputs and computers have mostly 6.25 connectors.

10 April 2017

Have 10 of these installed in motorsport vehicles, high heat and dust and they perform well. Very clean audio

24 January 2013

We are using this mixer to switch between a crowd microphone for singing in our church with the main output which comes to us from RCA in the sound board. The box is steel and very rugged. Knobs are easy to control. Solid equipment.

20 February 2015

Solid Build Variety of I/O options. Headphone Output is also in stereo.

Product Highlights
  • XLR Input with Switchable Phantom Power
  • 1/8" Stereo Mini Input
  • 3 Stereo RCA Input Pairs
  • RCA and 1/8" Stereo Mini Outputs
  • Up to 32dB of Gain per Channel
  • Steel Chassis
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