Sonifex RM-2S4 Reference Monitor 2 LED Meters/4 Stereo Channel Inputs


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    RM-2S4 - Overview

    The RM-2S4 is a1U rack-mount unit offering quality loudspeaker monitoring and accurate, high-resolution metering of up to four stereo audio sources and more with the addition of optional expansion cards. Sources may be in any mixture of analogue and AES/EBU digital formats, with sample rates up to 192kHz accepted. Audio inputs can be analogue or digital because they are autoswitching using the left Neutrik™ XLR for AES/EBU, or both Neutrik™ XLRs for analogue inputs and they can be used in any combination.

    Analogue inputs can be balanced or unbalanced in any combination. The digital inputs have switchable AES/EBU termination for (close-range) bridging operation and there is extra global input gain available for both analogue and digital low-level sources.

    Sources (and additional banks of sources, if fitted) are selected via a front panel rotary encoder, with clear LED indication of the current selection.

    The level of the chosen source is displayed on a pair of bright, multicoloured 53-segment bargraph meters, with a choice of seven accurately modelled scales/responses to suit different applications and local preferences. Clear scale labels are provided for you to chose the scale displayed and the meter brightness can be adjusted from the front panel. A separate phase meter indicates channel correlation or phase error conditions. On the rear panel, open-collector alarm outputs provide hardware indication of sustained underlevel, overlevel, phase errors and digital source lock.

    • Specifications:

      • Inputs
      • Audio Inputs 4 x stereo analogue or AES/ EBU digital (auto selecting)
      • Max level (0dB input gain): +18dBu (analogue)/0dBFS (digital)
      • CMRR: >60dB typical
      • Input Impedance: 20k Ohm (analogue) 110 Ohm (digital with termination switchable)
      • AES/EBU Sample Rate: 32 to 192kHz, converted internally to 48kHz
      • Input Gain: 0, +6, +12 or +18dB digital gain (switchable)
      • Selection: Front panel rotary control with indicator LEDs

        Line Level Outputs
      • Audio Outputs: 1 x stereo analogue or AES/EBU digital (switchable)
      • Gain re Selected Input: Unity or variable, following volume control (switchable)
      • Maximum Output Level: +18dBu (analogue)/0dBFS (digital)
      • Output Impedance: <50O (analogue)/110O (digital)
      • AES/EBU Sample Rate: 48kHz
      • Distortion: <0.02% (1kHz, +8dBu output)
      • Noise: -84dB RMS, unity gain ref +8dBu output
      • Frequency Response: 20Hz-20kHz +0/-0.5dB

    RM-2S4 - Required Accessories

      California Residents:
      Cancer and Reproductive Harm -