Reference Monitors
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RM-CA2 Confidence Monitor, 2 LED Meters & 2 Analogue Stereo Inputs.
Related Links:
RM-CAD8 >
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.
Attributes:
- 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.
Technical Specification For RM-CA2 |
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Inputs |
|
| Audio Inputs | 2 x stereo analogue (1 x XLR balanced, 1 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 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
+8dBu output |
| Frequency Response: | 20Hz-20kHz +0/-0.5dB |
| Crosstalk 1kHz input: 10kHz input: |
Analogue I/O, ref 0dBu <-90dB <-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 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 |
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| RM-CA2: | Confidence Monitor, 2 LED meters, 2 Analogue stereo inputs |
Physical Specification |
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| Dimensions (Raw): | 48cm (W) x 27cm (D) x 4.4cm (H) (1U) 19” (W) x 12” (D) x 1.73” (H) (1U) |
| Dimensions (Boxed): | 57cm (W) x 52cm (D) x15cm (H) 22.4” (W) x 20.5” (D) x 5.9” (H) |
| Weight: | Nett: 4.5kg Gross: 6kg Nett: 10lb Gross: 13.2lb |
