Fostex RM-3
Rackmount Active Stereo Monitor with Analog and AES/EBU Inputs


The Fostex RM-3 is the ideal solution for monitoring needs in various space-challenged environments such as machine rooms, video monitoring, surveillance, mobile and stationary control rooms, or any application where audio monitoring is needed in a compact environment.

Fostex RM-3 Features:

  • Rack mount stereo monitor speaker system with built-in 10W+10W D-class amplifier and 110x40mm elongated shape speaker units.
  • Accepts both Analog input (XLR & 1/4”TS phone) and Digital Input (AES/EBU).
  • Headphone out for headphone monitoring.  When switching from headphone out to speaker out or vice versa, the output signalfades in to avoid unexpected level difference.
  • Mute switch works as total mute or -20dB attenuation
  • Highly visible 26-dot LED meter (L&R) with 4-step brightness adjustment
  • Flexible meter setting for both Analog and Digital inputs such as VU+Peak, VU+Peakhold, Peak+Peakhold and VU only.
  • Reference level (0dB) is selectable between +4dBu and 0dBu.
  • Audio characteristics can be selected between the conventional VOICE mode and new MU-SIC mode for wider frequency range music source.

Fostex RM-3 Specifications:

  • Speaker Section:  110 x 40 mm antimagnetic cone speakers
  • Frequency Response:  200 Hz – 20 kHz
  • Amplifier Section:
    • Rated Output Power:  10W x 2
    • Digital Input:  XLR-3-31 connector (AES/EBU)
    • Sampling Frequency:  44.1 kHz to 96 kHz
  • Analog Inputs:
    • XLR-3-31 connector (balanced):
      • Rated Input Level:  +4/0dBu
      • Input Impedance:  10 kOhm or more
    • 1/4” Phone jack (unbalanced):
      • Rated Input Level:  -10/-14 dBV
      • Input Impedance:  10 kOhm or more
  • Digital THRU:  XLR-3-31 connector (AES/EBU)
  • Analog THRU:  XLR-3-31 / 1/4” TS phone
  • Phones:  1/4” stereo phones
  • Adapted load impedance:  16 ohm or more
  • Maximum Output:  20mW + 20mW (32ohm, 1kHz)
  • Level Meter:  26-dot LED x 2
  • ReferenceLevel:       
    • Digital:  -20dBFS
    • Analog XLR:  +4/9dBu
    • TS Phone:  -10/-14dBV
  • Distortion (T.H.D.):  0.1% or less
  • General:
    • Dimensions (HxWxD):  482mm x 44mm x 284mm  (including protruding parts)
    • Weight:  approx. 3.5 kgs
    • Power Requirement:  AC 100V to 240V 50/60Hz
    • Power Consumption:  10 W (0.5W  or less in standby mode)

WARNING: Cancer and Reproductive Harm -

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