Order Online or Choose Click & Collect - FREE Shipping on most orders over $100


Your Cart is Empty



Fostex RM3 1U Rack-mount Stereo Monitor

Please contact me with information about availability and pricing for Fostex RM3 1U Rack-mount Stereo Monitor


The Fostex Model RM-3 is a rack stereo-powered monitor speaker system to succeed the current model RM-2.

New features include a THRU-OUT, brightness adjustment of LED, and auto memory of Input / Output status, etc. via the newly added DIP switch on the rear panel.

The 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, theme park applications where audio monitoring is needed in a compact environment.



  • Rackmount 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 headphones out to speaker out or vice versa, the output signal fades in to avoid unexpected level difference.

  • The 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 a wider frequency range music source.


Speaker Section

Units    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:    44.1kHz to 96kHz
Analog Inputs:    XLR-3-31 connector (balanced)
        Rated input level:    +4/0dBu
        Input Impedance:    10k ohm or more
        1/4” Phone jack (unbalanced)
        Rated input level:    -10/-14 dBV
        Input Impedance:    10k ohm 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
        Reference Level:        Digital -20dBFS
Analog XLR +4/9dBu; TS phone -10/-14dBV
Distortion (T.H.D.)    0.1% or less


Dimensions:    482 (H) x 44 (W) x 284 (D) mm  (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)