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5
REFERENCE MONITORS
REFERENCE MONITORS - RM-2S4 & RM-2S10
Reference Monitors
Inputs
Audio Inputs 4 x stereo analogue or AES/
(RM-2S4): EBU digital (autoselecting)
Audio Inputs 10 x stereo analogue, plus
(RM-2S10): 10 x stereo AES/EBU digital
Max level +18dBu (analogue)/0dBFS (digital)
(0dB input
gain):
CMRR: >60dB typical
Input 20kohms (analogue)
Impedance: 110 ohms (digital with
termination switchable)
AES/EBU 32 to 192kHz, converted internally
Sample Rate: 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 Unity or variable, following volume
Selected Input: control (switchable)
Maximum +18dBu (analogue)/0dBFS (digital)
Output Level:
Output <50 ohms (analogue)/110 ohms
Impedance: (digital)
AES/EBU 48kHz
Sample Rate:
Distortion: <0.02% (1kHz, +8dBu output)
Noise: -84dB RMS, unity gain ref
+8dBu output
Frequency 20Hz-20kHz +0/-0.5dB
Response:
Crosstalk Analogue I/O, ref 0dBu
1kHz input: <-90dB
10kHz input: <-85dB
Audio Modiers
Modier Illuminated front panel
Selection: pushbuttons
DIM: Reduces speaker audio level by 10dB
CUT L & CUT R: Mutes left/right speaker audio
MONO: Combines left and right audio inputs
PHASE INVERT: Inverts phase of right audio input
M+S: Converts stereo input to Middle (sum)
and Side (dierence) signals
User-Variable Equalisation
Type: Parametric
Bands: Five
Centre 200Hz to 18kHz
Frequency:
Bandwidth: 0.25 to 2 octaves
Boost/Cut: ±12dB
Programming: Via USB/serial control port
Amplier/Loudspeakers
Conguration: Three-way with stereo mid/
high-frequency drivers & mono
low-frequency driver
Power Output: 2 x 5W (HF) + 20W (LF) with
protective limiter
Crossover: 500Hz (3rd order Butterworth)
Distortion < 0.05% (1kHz, 3W output)
(HF Outputs):
Distortion < 0.05% (100Hz, 6W output)
(LF Output):
Noise: More than 80dB below full output
Volume: Mute to full volume via front
panel rotary control
Balance Trim: ±6dB via front panel rotary control.
Peak Acoustic 102dB SPL @ 2ft
Level:
Level Metering
Number: 2 x 53-segment tri-colour
LED bargraphs
Characteristics: Selectable by switch from:
1. Dual BBC PPM + standard VU
2. BBC PPM
3. EBU PPM
4. Nordic PPM
5. AES/EBU digital PPM
6. DIN PPM
7. Standard VU
8. Extended VU
Ballistics: According to selected characteristic
Line-Up Level: According to selected characteristic
Phase Metering
Type: 5-segment, indication at 0, 45, 90, 135
and 180 degrees
Remote Control
USB: Slave device, 19200 baud
Serial: RS232, 19200 baud, 3-wire connection
Alarm Outputs: 1. Audio underlevel/fail (latching)
2. Audio overlevel (latching)
3. Sustained phase error (latching)
4. AES/EBU input unlock
(non-latching)
Open-collector outputs rated at 30V,
50mA maximum
Output low/conducting in normal
condition (no alarm)
Control Inputs: 1. Mute audio
2. Dim audio
3. Alarm reset
Pull-to-ground to activate inputs
Status Indicators
LIMIT: Indicates loudspeaker protection
limiter is active.
CLIP: Indicates internal digital clipping due
to overlevel.
LOCK: Indicates lock achieved on selected
digital input(s).
OPT: For future use.
Connectors
Audio Inputs 8 x XLR 3-pin female (balanced, may
(RM-2S4): be unbalanced)
Audio Inputs 3 x D-type 25-pin female (balanced,
(RM-2S10): may be 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
USB: Type B socket
Serial: D-sub 9-pin female
Remote I/O: D-sub 15-pin male
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-2S4: Reference Monitor, 2 LED meters,
4 stereo channel inputs
RM-2S10: Reference Monitor, 2 LED meters,
10 stereo channel inputs
Physical Specication
Dimensions 48cm (W) x 30.5cm (D) x 4.4cm (H) (1U)
(Raw): 19” (W) x 12” (D) x 1.73” (H) (1U)
Dimensions 55cm (W) x 43cm (D) x18cm (H)
(Boxed): 21.7” (W) x 16.9” (D) x 7.1” (H)
Weight: Nett: 4.5kg Gross: 5.9kg
Nett: 10lb Gross: 13lb
Options
RM-HD1: HD-SDI expansion card
RM-HDE1: HD-SDI & Dolby® E expansion card
Technical Specication For RM-2S4 & RM-2S10
The 5 band parametric EQ allows
you to alter the monitor’s response
to suit the room it’s in, or to suit your
particular taste in listening.
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