Fostex RM-3 Rackmount 20W Speaker System

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This unit is ideal for machine rooms, video monitoring, surveillance, mobile and stationary control rooms, theme park applications where audio monitoring is needed in a compact environment.


  • 1RU Rack mount stereo monitor speaker system
  • 10W+10W D-class amplifier
  • 110x40mm elongated shape speaker units.
  • Accepts XLR & 1/4”TS phones and Digital Input.
  • Headphone out for headphone monitoring.
  • Mute switch works as total mute or -20dB attenuation
  • Highly visible 26-dot LED meter (L&R) with 4-step brightness adjustment
  • Flexible meter settings for both Analog and Digital inputs.
  • Reference level (0dB) is selectable between +4dBu and 0dBu.
  • Audio characteristics are selectable


Brand Fostex
Model RM-3


Color Black
Type 110 x 40 mm anti-magnetic cone speakers


Input Connectors DIGITAL INPUT:
Connector: XLR-3-31 type
Format: IEC 60958 (AES/EBU)
Sampling Frequency: 44.1 to 96 kHz

Connector: For both XLR/ 1/4" (6.3 mm) TS phone
Rated Input Level: XLR (balanced) +4/0 dBV, TS phone (unbalanced): -10/-14 dBV
Input Impedance: 10 kOhms or more
Output Connectors Connector: 1/4" (6.3 mm) stereo headphone output
Adapted Load Impedance: 16 ohms or more
Maximum Output: 20 mW+ 20 mW (32 ohms, 1 kHz)

Performance Data

Amplifier Power (W) 10 W x 2
Frequency Response 200 Hz to 20 kHz
Impedence 8 ohms
Max SPL Output SPL: 84 dB/W (1 m)

Physical Information

Dimensions (WHD) 1.7 x 18.9 x 11.2" , including protruding parts
Power AC 100 V to 240 V 50/60 Hz
User Controls Volume control knob
Input-Output push buttons
Weight 7 lb 12 oz.