Sonifex RB-SS10

The Sonifex RB-SS10 10 way stereo analogue source selector/mixer is a 1U rack-mount unit that produces a stereo analogue audio output from 10 selectable stereo analogue sources. There are 10 illuminated front panel push-buttons, which select and indicate the current channel selection.The selection and indication is also available through a remote connector on the rear panel. To stop accidental front panel selection, there is a remote input to inhibit the front panel buttons. Two of the stereo inputs are on XLR so that you can hot-plug audio sources, e.g. portable recorders. As well as being able to act as a source select module, the RB-SS10 can act as a mixer, by enabling the mix mode (using the remote input). The gain for left and right inputs can be individually adjusted by using the pre-set potentiometers on the front panel. As well as routing the selected audio signal, the unit will also route a remote signal input through the remote connector to the selected input source, for starting external audio equipment such as a CD player. The front panel headphone output has its own volume control, which is independent of the level adjustment for the main outputs, and has a maximum output level of +12dBu. The volume control can be made to also alter the output level of the main XLR outputs by using a switch on the rear panel to enable/disable this feature. There is a designation strip on the front panel, useful for giving the buttons a meaningful description. The strip covers the input gain controls so that once configured, they can’t easily be altered – ideal for installation work. The LED on the front panel is used to indicate that power is present on the unit.

RB-SS10 Block Diagram.

Specification Sonifex RB-SS10
Audio Specification
Input Impedance:	20 kΩ bridging
Output Impedance:	<50 Ω
Max Input Level:	+28dBu
Max Output Level:	+28dBu
Frequency Response:	20Hz to 20kHz ±0.1dB (600 Ω load, ref 1kHz)
Input Gain Range:	Adjustable 8dB loss to 20dB gain (L & R adjust) via front panel adjustable preset potentiometers
Common Mode Rejection:	>66dB typically
Noise:	-96dB unity gain ref +8dBu
Max Headphone Output Level:	+12dBu
Connections
Inputs:	4 x XLR 3 pin female (2 x stereo) (balanced, can be unbalanced) 2 × 25 way D-type socket (female) (4 stereo balanced channels on each)
Outputs:	2 x XLR 3 pin male (stereo balanced, can be unbalanced)
Remote Start I/O:	25 way D-type plug (male)
Remote Select/Switch Inputs:	25 way D-type socket (female)
Status Outputs:	25 way D-type socket (female)
Mains Input:	Filtered IEC, 110V-120V, or 220-240V switchable, fused, 6W maximum
Fuse Rating:	Anti-surge fuse 160mA 20 × 5 mm (230VAC) Anti-surge fuse 315mA 20 × 5 mm (115VAC)
Equipment Type
RB-SS10:	10 way stereo analogue source selector/mixer
Physical Specification
Dimensions (Raw):	48 cm (W) x 10.8 cm (D) x 4.2 cm (H) (1U) 19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed):	58.5 cm (W) x 22.5 cm (D) x 7 cm (H) 23” (W) x 8.9” (D) x 2.8” (H)
Weight:	Nett: 1.5 kg Gross: 2.0 kg Nett: 3.3lbs Gross: 4.4lbs