Rolls RM83T
Transformer-Balanced 8-Channel Microhpone Mixer


Our Price: $269.00
List Price: $350.00
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Rolls' RM83t is an 8-channel mixer in a single rack space intended for a variety of sound reinforcement applications including board rooms, churches, mixing console expansion, etc.  Virtually any application where up to eight microphones need to be mixed together, and space is limited, is met by the RM83t.  Each of the eight channels has a transformer balanced XLR microphone input, as well as a 1/4" unbalanced input.  The 1/4" jacks may be internally reconfigured to become channel Inserts or Direct Outputs.  Inserts provide a way to get each individual channel signal in and out of the RM83t mainly for processing purposes.  A Direct Output is simply taking the signal from the channel only.  Each channel has individually switchable +48 VDC phantom power.  The RCA Prefade (pre Master Level) Output may be connected to the RCA Aux Buss Input for cascading two RM83t units together.  This Output may also be used for recording purposes, and the Aux Buss Input.  The Main output for the RM83t is a balanced male XLR jack.  This output has a switch for Line or Mic level output.


  • Eight transformer balanced XLR microphone inputs.
  • Tone controls (treble/bass cut).
  • Individually switchable +48 VDC phantom power.
  • Eight 1/4" unbalanced inputs, each may be internally jumpered to become an Insert or a Direct Output.
  • RCA Prefader (pre Master Vol.) Output for recording, monitoring or cascading.
  • RCA Aux Buss Input for cascading, or as a ninth unbalanced input.
  • Mic or Line output level.


  • Input Impedance: Mic: 10K Ohms XLR balanced 1/4": 20K Ohms unbalanced Bus Input: 10K Ohms unbalanced
  • CMRR: >80 dB (Mic)
  • THD: <.009%
  • Max S/N ratio: 106 dB
  • Phase Shift: <10 degrees, 20Hz to 20 kHz
  • Output Impedance: 51 Ohms
  • Output Level: +22 dBV max
  • Phantom Power: +48 VDC
  • Tone Control: 12 dB Treble/Bass cut
  • Max Gain: Mic: 55 dB Line: 26 dB
  • Outputs: XLR bal., RCA unbalanced Prefade out
  • Input Connectors: 8: XLR, 8: 1/4" (Line), 1: RCA (Bus input)
  • Max Input Level: Mic: 0 dBV balanced Line: +6 dBV
  • Size: 19" x 1.75" x 6" (48.3 x 4.5 x 15 cm)
  • Power: 12 VAC (Rolls Model PS12)
  • Weight: 7 lbs. (3 kg)
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