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Sonifex RM-2S4 4 Stereo Channel Input Reference Monitor with 2 LED Meters

 
  • Dale #:

    SONF-RM2S4
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Description

The RM-2S4 is a 1U 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 ... Read More

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Description

The RM-2S4 is a 1U 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 on the RM-2S4 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. A pair of line-level audio outputs, configurable as analogue or AES/EBU digital, follow the selected source at either a fixed level or one mirroring the loudspeaker volume.

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.

Six illuminated pushbuttons provide access to a range of audio "...modifiers' "- instant dimming of the volume, individual muting of each audio channel, stereo-to-mono conversion, phase inversion and Middle+Side transcoding. On the rear panel, logic-level inputs allow direct remote access to the DIM and MUTE functions.

The three-way loudspeaker system is fed via a DSP-based active crossover and a trio of highly efficient Class-D amplifiers. Careful attention to driver selection, materials and case design, plus active DSP equalisation, has ensured a flat response and outstanding reproduction from such a shallow unit. A protective limiter prevents damage to the loudspeakers under overload conditions and the front-panel headphone socket automatically mutes the internal loudspeakers when a plug is inserted. A Balance control allows you to alter the stereo imaging of the left and right channels.

A further five-band parametric equaliser can be accessed for room-equalisation purposes via Sonifex SCi Windows-based remote control software. Source selection, status monitoring and unit ID functions, plus firmware updates to add extra functionality, are all accessible remotely via both USB and RS232 connections in conjunction with Sonifex SCi software. The open control protocol also allows operation with terminal programs or customised applications.

Optional additions to the RM-2S4 include HD video input expansion cards, allowing multiple AES groups embedded within an HD-SDI or SD-SDI signal to be de-embedded and monitored, either with (RM-HD1E) or without (RM-HD1) Dolby E or Dolby Digital encoding.

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Product Specs

Inputs
Audio Inputs4 stereo analogue or AES/ EBU digital channels (autoselecting)
Max level (0dB input gain)+18dBu (analogue)/0dBFS (digital)
CMRR>60dB typical
Input Impedance20kohms (analogue); 110 ohms (digital with termination switchable)
AES/EBU Sample Rate32 to 192kHz, converted internally to 48kHz
Input Gain0, +6, +12 or +18dB digital gain (switchable)
SelectionFront panel rotary control with indicator LEDs
Line Level Outputs
Audio Outputs1 x stereo analogue or AES/EBU digital (switchable)
Gain re Selected InputGain re Selected Input
Maximum Output Level+18dBu (analogue)/0dBFS (digital)
Output Impedance<50 ohms (analogue)/110 ohms (digital)
AES/EBU Sample Rate48kHz
Distortion<0.02% (1kHz, +8dBu output)
Noise-84dB RMS, unity gain ref +8dBu output
Frequency Response20Hz-20kHz +0/-0.5dB
CrosstalkAnalogue I/O, ref 0dBu; 1kHz Input :<-90dB; 10kHz Input:<-85dB
Audio Modifiers
Modifier SelectionIlluminated front panel pushbuttons
DIMReduces speaker audio level by 10dB
CUT L & CUT RMutes left/right speaker audio
PHASE INVERTInverts phase of right audio input
Amplifier/Loudspeakers
ConfigurationThree-way with stereo mid/high-frequency drivers & mono low-frequency driver
Power Output2 x 5W (HF) + 20W (LF) with protective limiter
Crossover500Hz (3rd order Butterworth)
Distortion (HF Outputs)< 0.05% (1kHz, 3W output)
Distortion (LF Output)< 0.05% (100Hz, 6W output)
NoiseMore than 80dB below full output
VolumeMute to full volume via front panel rotary control
Balance Trim+/-6dB via front panel rotary control
Peak Acoustic Level102dB SPL @ 2ft
Phase MeteringType: 5-segment, indication at 0, 45, 90, 135 and 180 degrees
Connectors
Audio Inputs8 x XLR 3-pin female (balanced, may be unbalanced)
Audio Outputs2 x XLR 3-pin male (balanced, maybe unbalanced)
Headphones1/4 (6.35mm) A-gauge 3-pole stereo jack socket
USB Type B socket
SerialD-sub 9-pin female
Remote I/OD-sub 15-pin male
Mains InputFiltered 3-pin IEC male, continuously rated 85 - 264VAC, 47 - 63Hz, fused, 60W peak, 30W average
Dimensions (Raw)48cm (W) x 30.5cm (D) x 4.4cm (H) (1U); 19 (W) x 12 (D) x 1.73 (H) (1U)
Dimensions (Boxed)55cm (W) x 43cm (D) x18cm (H); 21.7 (W) x 16.9 (D) x 7.1 (H)
Weight (Nett)4.5kg (10lbs)
Weight (Gross)5.9kg (13lbs)

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