Rolls MX54S Promix Plus Stereo Microphone Mixer

Mix three microphones to stereo XLR outputs, with the smallest possible footprint.

The MX54S Promix Plus mixes three microphones into two transformer balanced outputs. It has three XLR inputs, each with individually switchable phantom power, and Low Cut switches, a Level control, and a Pan control. As mentioned, it has two transformer balanced, XLR outputs. A 1/4 inch Aux/Headphone output has been provided along with a Clip indicator, Power indicator, and Power switch. The unit is also powered by two 9-Volt alkaline batteries.

Mixes three microphones to stereo XLR outputs

Output level controls for mic or line-level output

Transformer isolated outputs

Phantom Power and Low-Cut switches for each Mic input

Battery and AC powered

Handy shoulder strap mounts

Input Impedance: 600 Ohms

Output Impedance: XLR 600 Ohms

THD + Noise: .02%

S/N Ratio: 84 dB

Frequency Response: 25 Hz - 16 kHz (+0 / -3 dB)

Max Output Level: + 14 dB

Max Input Level: -14 dB

Max Gain: +60 dB

Low Cut: -3 dB @ 100 Hz

Current Draw: 20 mA

Phantom Power: +18 VDC

Connectors: 3: Female XLR, 2: Male XLR, 1: 1/4 in. TRS, DC Power Jack

Size (WxDxH): 5.3 x 3.7 x 2 in.

Weight: 1 lbs.
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 2.5 lbs
Shipping Dimensions: 14 x 9 x 4 in
Manufacturer Part Number (MPN): MX54S

For support or warranty questions, please contact the manufacturer:
Phone: 801-263-9053


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