The RB-PMX4 is a high performance 10 mono input to 4 mono output preset mixer. Each of the four outputs has a 10 way DIP switch associated with it to select which of the 10 inputs are routed to it. So, by altering the DIP switches, any of the input sources can be mixed to any of the outputs. The DIP switches are enclosed by a screw-on cover on the front panel so that the settings can not be accidently changed for secure applications.Â
The RB-PMX4 has been designed for situations where a small mixer is needed for installations where it will be configured and then only altered occasionally, or never altered. Uses for this product are numerous including a four bus mini-mixer, a 4 zone mixer for pubs and clubs and a quad stereo to mono converter to name a few.
The XLR-3 inputs and outputs are electronically balanced and can be wired unbalanced. Each output is individually buffered so that a short circuit on one will not affect the others. Each input has its own gain control which is a pre-set potentiometer accessible through the front panel. This provides gain adjustment of -8dB to 18dB. This is useful for normalising consumer and professional signals to give outputs of -15dBu and 0dBu respectfully.Â
Audio Specification Input Impedance >20kohm balanced bridging Maximum Input Level +36dBu Frequency Response 20Hz to 20kHz +/= 0.1dBu (600ohm load, @ 1kHz) Common Mode Rejection >60dBu typically Noise -86dBu RMS 22Hz-22kHz unity gain ref +8dB Output Impedance <50ohm Maximum Output Level +28dBu Gain Range Adjustable -8dBu to +18dBu gain Off-isolation/Crosstalk >90dBu @ 1kHz Distortion <0.01% @ 1kHz, 0dBu to +26dBu Connections Inputs 10 x XLR 3 pin female (balanced, can be unbalanced) Outputs 4 x XLR 3 pin male (balanced, can be unbalanced) Mains Input Filtered IEC, switchable 110-120V, or 220-240V, fused, 6W max Physical Specification Weight Nett: 1.5kg Gross: 2.2kg Dimensions Raw: 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) Boxed: 53cm (W) x 20.5cm (D) x 6cm (H)
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