RM-CA2

Confidence Monitor, 2 LED Meters & 2 Analogue Stereo Inputs

The RM-CA2 is a 1U rack-mount unit offering quality loudspeaker monitoring and 2 channel metering of two stereo analogue audio sources.

RM-CA2

Confidence Monitor, 2 LED Meters & 2 Analogue Stereo Inputs

Using the same outstanding speaker system as the Reference Monitor range, the confidence monitors offer a superb sound with a cut-down feature set. The confidence monitors have been designed to give the best possible performance at a reduced price: The RM-CA2 is a 1U rack-mount unit offering quality loudspeaker monitoring and 2 channel metering of two stereo analogue audio sources. Input 1 has stereo balanced Neutrik™ XLRs and Input 2 has both stereo balanced Neutrik™ XLRs and stereo unbalanced RCA phono connectors. The balanced analogue inputs can be wired unbalanced if required. Sources are selected via a front panel push-button switch, with clear LED indication of the current source. A rear panel DIP switch setting allows the unit to monitor either:

Stereo signals, with the two front panel control knobs acting as stereo volume and balance control, to alter the stereo imaging of the left and right channels, or

Dual mono signals, with the two front panel control knobs acting as left and right volume controls.

There is a front panel headphone socket which responds to the volume controls and the headphone socket automatically mutes the internal loudspeakers when a plug is inserted. A pair of line-level analogue audio outputs follow the selected source at the selected level, or optionally at 10dB lower (if using the unbalanced input), set via rear-panel DIP switch. The level of the chosen source is shown on an 8 segment LED bar-graph display with PPM and VU scales indicated. The bar-graph can optionally be lowered by 10dB (if using the unbalanced input), set via rear-panel DIP switch. A single phase meter LED indicates channel correlation or phase error conditions. 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 The RM-CA2 operates from global mains voltages (85-264V AC, 47-63Hz) without adjustment.

Product Features

  • 2 x analogue inputs - XLR and RCA phono (Input 2).

  • Stereo analogue output follows source selection.

  • Headphones output.

  • Audio metering withe VU and PPM scales.

  • Phase meter LED.

  • Stereo or dual mono operation.

  • Anti-vibration steel case.

  • Sealed lid with foam cut-outs to dampen lid.

  • Multi-point screw fixings ensure lid rigidity.

  • Rear connector ports sealed with foam.

  • Glue used on components which could move, or vibrate.

  • Accurate 3-way speaker system.

  • Two mid/high frequency speakers provide excellent stereo imaging.

  • Separately driven, forward facing, dual magnet, mono bass driver.

  • Custom-moulded, profiled, HF enclosures minimise standing waves.

  • Acoustic damping in the HF enclosures reduces colouration.

  • Separate, sealed, infinite-baffle enclosure for each driver.

  • Magnetically shielded drivers so that the monitors are perfectly safe to use near CRTs and TFT displays.

  • Separate, highly efficient class-D switching amplifier for each speaker.

  • Short, even cable lengths to and from the speaker enclosures to reduce any potential microphonic induction.

  • DSP based design allows better audio performance to be realised.

  • Active crossover provides perfect separation between mid-range and bass sounds.

  • A universal power supply ensures global voltage operation without adjustment.

Typical Applications

Radio station engineering racks-room for monitoring news feeds.

Product Category

Confidence Monitors

Inputs

Audio Inputs2 x stereo analogue (1 x XLR balanced,
Audio Inputs1 x XLR balanced or RCA phono unbal)
Max level (0dB input gain):+18dBu (analogue)/0dBFS (digital)
CMRR:>60dB typical
Analogue input impedances:XLR:>20kΩ balanced bridging
Analogue input impedances:RCA:>10Ω unbalanced
Input Gain:+10dB on unbalanced input
Selection:Front panel push button with indicator LEDs
 

Line Level Outputs

Audio Outputs:1 x stereo analogue
Gain re Selected Input:Unity or - 10dB (switchable)
Maximum Output Level:+18dB
Output Impedance:<50Ω
Distortion:<0.02% (1kHz, +8dBu output)
Noise:-95dB RMS, unity gain ref
Noise:+8dBu output
Frequency Response:20Hz-20kHz +0/-0.5dB
CrosstalkAnalogue I/O, ref 0dBu
1kHz input:<-90dB
10kHz input:<-85dB
 

Amplifier/Loudspeakers

Configuration:Three-way with stereo mid/ high-frequency drivers & mono low-frequency driver
Power Output:2 x 7W (HF) + 15W (LF) with protective limiter
Crossover:250Hz (24dB/octave, Linkwitz-Riley)
Distortion (HF Outputs):< 0.1% (1kHz, 3W output)
Distortion (LF Output):< 0.01% (100Hz, 6W output)
Noise:More than 102dB below full output
Volume:Mute to full volume via front panel rotary control
Balance Trim:±6dB via front panel rotary control
Peak Acoustic Level:98dB SPL @ 2ft
 

Level & Phase Metering

Number:2 x 8-segment LED bargraphs
Line-Up Level:0dB on scale can be set to 0dB or -10dB via rear panel DIP switch
Phase Meter:Single LED indication showing average
 

Connectors

Audio Inputs:4 x XLR 3-pin female balanced
Audio Inputs:2 x RCA female phono unbalanced
Audio Outputs:2 x XLR 3-pin male (balanced, may be unbalanced)
Headphones:1/4” (6.35mm) A-gauge 3-pole stereo jack socket
Mains Input:Filtered 3-pin IEC male, continuously rated 85 - 264VAC, 47 - 63Hz, fused, 60W peak, 30W average
Fuse Rating:Anti-surge fuse 2A 20 x 5mm
 

Equipment Type

RM-CA2:Confidence Monitor, 2 LED meters, 2 Analogue stereo inputs
 

Physical Specification

Dimensions (Raw):48cm (W) x 27cm (D) x 4.4cm (H) (1U)
Dimensions (Raw):19” (W) x 12” (D) x 1.73” (H) (1U)
Dimensions (Boxed):57cm (W) x 52cm (D) x15cm (H)
Dimensions (Boxed):22.4” (W) x 20.5” (D) x 5.9” (H)
Weight:Nett: 4.5kg Gross: 6kg
Weight:Nett: 10lb   Gross: 13.2lb
 

Handbooks & Guides

RM-CA2 Handbook[Download]

Brochures

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Declarations

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Firmware

Firmware Notes