Rolls RM67
Microphone / Source Mixer


Rolls' RM67 is a single rack space mixer designed for the install/contractor market. The unit mixes three balanced microphones with four stereo sources to mono or stereo balanced outputs.

The XLR Microphone Inputs have Mic/Line level switches, a send/return Insert jack, and individually switchable +12 VDC phantom power. Priority talkover, with variable Duck Sensitivity is available on one microphone for paging, and on one Source input for use on a jukebox. telephone system, etc.

Each Microphone input has a level and tone control, and each Source input has a level control. Bass and Treble controls have been provided for all the sources, and a Master Output Level control adjusts the level of all mixed signals. Source One has an added front-panel 3.5mm input.

A pre-Master RCA output has been provided for recording, and a Remote Volume output jack is provided for connection to a 100K ohm linear taper potentiometer and used as an external master level control.

Rolls RM67 Features:

  • Three XLR mic inputs with switchable phantom power and input padding
  • Four stereo RCA line/consumer level inputs
  • Mic Insert jack for adding signal processing to the Mic Inputs
  • Priority ducking/talk-over for microphone paging, and jukebox
  • Stereo Record Out
  • Remote Volume jack (connects to an optional 100K ohm potentiometer)
  • Master Level control
  • Mute jack, contact closure to ground main output mute
  • Clip LEDs for each Mic input
  • Master Bass and Treble controls

Rolls RM67 Specifications:

  • Input Impedance, Mic: 600 Ohms XLR balanced
  • Input Impedance, Line: 22K Ohms
  • Source: 22K Ohms gold plated RCA
  • Mic Insert: 22K Ohms 1/4" TS unbal.
  • Max Input Level, Mic: -14 dBV Mic level, +20 dB Line level
  • Source: 24 dBV
  • Connectors: 3: XLR, 6: Stereo RCA, 3: 1/4" TRS, 1:1/4" TS, 1: 3.5mm
  • Phantom Power: +12 VDC
  • Output Level: +17 dBV max
  • Output Impedance: 51 Ohms
  • Max Gain: Mic 60 dB, Source 26 dB
  • Tone Controls: +/-12 dB 100 Hz Bass, +/-12 dB 11kHz Treble
  • Nose Floor: - 80 dB, THD: <.025%, S/N Ratio: 96 dB
  • Dimensions: 19" x 1.75" x 6" (48.3 x 4.5 x 15 cm)
  • Weight: 5 lbs. (2.3 kg)
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