SONIFEX RB-SM1 STEREO TO MONO CONVERTER Analogue, balanced, 1 stereo input

Convenient building blocks to derive a mono output from a stereo input, perhaps for use to supply cue in broadcast environments or to feed a mono PA system for an annexe area where the main system is stereo.

All models are housed in red-anodised aluminium cases with apertures for fixing screws, they can be attached to any flat surface, or rack-mounted from the front with the standard front panels, or in reverse, with the rear panel facing out of the rack, using accessory panels.

RB-SM1 - Single Converter

This derives a single balanced, buffered, line-level analogue output from two inputs.

The front panel is blank apart from a power indicator. The rear has two electronically balanced XLR input connectors which can be wired unbalanced for use with domestic equipment. There is an XLR output connector, also electronically balanced, which may be wired unbalanced without level loss. It has an associated pre-set gain control with sufficient adjustment to produce a normalised 0dBu mono output from both line-level and domestic equipment. Power is applied to an IEC inlet, with adjacent fuse and voltage selector switch.

Input: 0dB nominal, +28dBu maximum, 20kohms. Common mode rejection: greater than 66dB. Gain: -8dB to +18dB. Response: 20Hz to 20kHz +/-0.1dB. Distortion: 0.01% THD, 1kHz, +8dBu output. Noise: -100dB, 0dB gain, +8dBu output. Output: +28dBu maximum, 50 ohms. Power source: 110-120V or 220-240V AC 6W maximum. Dimensions: 280(w) x 108 (d) x 42 (h) mm. Weight: 1kg.