Product Details

8 Channel Automatic/Manual Audio switcher with double PSU

The RB-DSD8 8 channel silence switcher works in a similar way to the Sonifex RB-SD1 and RB-DSD1 but allows for 4 stereo channels of audio. These stereo audio channels can be either analogue or digital and can be used independently to give 4 stereo silence detectors or they can be linked to handle multichannel audio inputs, e.g. for 5.1 and 7.1 surround systems. Designed to switch from one input (or set of inputs) to another in the event of loss of audio, the unit is ideal at transmitter sites, or after the master output of a studio, to switch in another audio source, or simultaneous broadcast, should a master source fail.

Technical Specification
Audio Specification:
Digital In To Digital Out:
Input & Output Impedances: 110Ω ± 20% AES/EBU balanced I/O 50Ω BNC TTL word clock input
Dynamic Range: >138dB ref. 0dBFS, 22kHz BW, unity gain
THD+N: <-137dBFS, 0dBFS, 20-20kHz, unity gain, 20kHz BW
Signal Level: Balanced
Sample Rates: 32, 44.1, 48, 88.2, 96,176.4 or 192kHz
Bit Depth: Up to and including 24 bit
Audio Specification:
Analogue In To Analogue Out:
Full Scale Setting:
(Software Selectable)
:0dBFS = +12dBu 0dBFS = +18dBu 0dBFS = +24dBu
Maximum Input Level: +12dBu +18dB +24dbu
Noise (A-weighted, Unity gain, RS=200Ω) <-93dBu <-88dBu <-82dBu:
Input Impedance: >20kΩ bridging balanced
Dynamic Range: >105dB ref. +24dBu, 22kHz BW, unity gain
THD+N: <0.005%, +8dBu, 20-20kHz, unity gain, 20kHz BW
Common Mode Rejection: >60dB @ 1kHz
Front Panel Operational Controls:
Switch Mode Select: Via AUTO, MANUAL or SLAVE push-buttons
Manual Source Select: Via MAIN and BACKUP push-buttons
Group Selection : Via LINK/SELECT push-buttons
Front Panel Indicators:
Presence LEDs: For all input channels
Link LEDs: Show which channels are controlled concurrently
Mode LEDs: Indicate the current mode selected for each group
Selection LEDs: Indicate whether MAIN or BACKUP
is selected:
AES LEDs: Show the state of the digital input to each group
PSU LEDs: Show the state of each power
Remote Control LED: Show if remote control is selected
External Sync LED: Show the state of any sync inputs
Rear Panel - Operational Controls:
Silence Threshold: -39dBfs to -84dBfs in 3dBfs steps, via rear panel DIPSwitches
Silence Duration: 0 - 254 seconds in 2 second intervals duration, via rear panel DIPSwitches
Stereo/Mono Switching: Stereo or mono, via rear panel DIPSwitch
Master Select: 32, 44.1, 48, 88.2, 96,176.4 or 192kHz Output sample rate, via rear panel DIPSwitches
Ignore Silence: Each channel can be set to ignore silences, via rear panel DIPswitches
Remote Control Enable: Enabled or disabled, via rear panel DIPswitch
Sync Mode & Source Select: Sync in master mode or sync from MAIN input1, AES or wordclock sync input in auto or slave mode, via rear panel DIPswitches
Remote Start: Latched or momentary, via DIPswitch
Input Lock Loss: Switch immediately or treat as silence delay, via rear panel DIPswitch
Digital or Analogue Output: Digital or analogue, via rear panel DIPswitches
Full Scale Line Up: 24, 18 or 12 dBu = 0dBFS, via rear panel DIPswitches
Boot Mode: Boot in boot or normal via rear panel DIPswitch
Digital/Analogue Inputs: 2 x 8 channel inputs on 2 x 25 pin D-type male
Digital/Analogue Outputs: 1 x 8 channel outputs on 1 x 25 pin D-type female
Sync Inputs: 1 x BNC (Wordclock or AES)
Remote I/O Port: 25 way D-type female
SCi port: USB or ethernet
Mains Input: 2 x Universal filtered IEC, continuously rated 85-264VAC @47- 63Hz, max 60W
Fuse Rating: 2 X Anti-surge fuse 2A 20 x 5mm
Equipment Type:
RB-DSD8: 8 channel silence switcher
Physical Specification:
Dimensions (Raw): 48cm(W) x 22cm(D) x 4.2cm(H) 1U
:19” (W) x 8.7” (D) x 1.7” (H) 1U
Dimensions (Boxed): 55cm (W) x 28cm (D) x17cm (H)
:21.7” (W) x 11” (D) x 6.7” (H)
Nett: 2.3kg
Gross: 3.8kg
* Note that this product is deeper than standard Redboxes:
Accessories:RB-RK3 1U Rear panel rack kit for large Redboxes