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Sonifex RM-4C8-E1X - Reference Monitor RM-4C8 with RM-E1X Dolby Decoder Card

£3,660.00 £3,050.00 (ex. vat)




Sonifex RM-4C8-E1X

  • Sonifex RM-4C8-E1X
  • Sonifex RM-4C8-E1X
  • Sonifex RM-4C8-E1X Rear

Sonifex RM-4C8-E1X - Reference Monitor RM-4C8 with RM-E1X Dolby Decoder Card

The Sonifex RM-4C8-E1X is a version of the RM-4C8 Reference Monitor with the RM-E1X expansion card already fitted. So, it has all of the features of the RM-4C8 as standard together with Dolby Decoding.

The RM-E1X adds to the unit a 110ohm balanced AES/EBU input and output on XLR connectors with the output acting as a loop-through of the input. The XLR input can decode a Dolby E or Dolby Digital audio stream allowing you to monitor visually 8 or 5.1 audio channels respectively and to monitor audibly any 2 of those channels.

By pressing the left hand source select control, you can select the Dolby input. If a Dolby E or Dolby Digital input is detected, the Channels (CHANS) button flashes to indicate that decoding is possible. Pressing the CHANS button displays the Dolby Digital 5.1 or Dolby E 8 channel signal, using the 4 bar-graph meters.

Each meter is split into 2 sections allowing you to view L, R, C, LFE, Ls, Rs for Dolby Digital and an additional Lt, Rt for Dolby E.

Full Dolby Metadata is available using the SCi remote control software. For a more detailed description of Dolby Decoding operation please refer to the Reference Monitor handbook.

Sonifex RM-4C8-E1X Specifications

Inputs 

  • Audio Inputs: 8 analogue or AES/ EBU digital channels (autoselecting)
  • Max level (0dB input gain): +18dBu (analogue)/0dBFS (digital)
  • CMRR: >60dB typical
  • Input Impedance: 20kΩ (analogue) 110Ω (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: 2 x Front panel rotary control with indicator LEDs 

Dolby Decoding Audio Input

  • AES/EBU Input: 110Ω transformer coupled balanced Input
  • Sample Rates: 32 - 48 kHz
  • Audio Formats:
    • Linear PCM
    • Dolby E (16, 20 and 24 bit)
    • Dolby Digital (16 and 32 bit)   

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: <50Ω (analogue)/110Ω (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
  • Crosstalk: Analogue I/O, ref 0dBu 
    • 1kHz input: <-90dB
    • 10kHz input: <-85dB

Dolby Follow Audio Output

  • AES/EBU Output: 110Ω transformer coupled balanced output   

Audio Modifiers

  • Modifier Selection: Illuminated front panel 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 (difference) signals 

User-Variable Equalisation

  • Type: Parametric
  • Bands: Five
  • Centre Frequency: 200Hz to 18kHz
  • Bandwidth: 0.25 to 2 octaves
  • Boost/Cut: ±12dB
  • Programming: Via USB/serial control port 

Amplifier/Loudspeakers

  • Configuration: 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 (HF Outputs): < 0.05% (1kHz, 3W output)
  • Distortion (LF Output): < 0.05% (100Hz, 6W 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 Level: 102dB SPL @ 2ft

Level Metering

  • Number: 4 x 26-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 socket (balanced, may be unbalanced)
  • Audio Outputs: 2 x XLR 3-pin male plug (balanced, may be unbalanced)
  • Dolby Decoding Audio Input: 1 x XLR 3 pin female socket
  • Dolby Follow Audio Output: 1 x XLR 3 pin male plug
  • 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-4C8: Reference Monitor, 4 LED meters, 8 channel inputs & dual source selectors

Physical Specification

  • 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):
    • 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
Manufacturer Sonifex
SKU SSOMRM4C8E1X
Model Sonifex RM-4C8-E1X
GTIN N/A
Sonifex
Sonifex
Sonifex RM-4C8-E1X
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