The RB-DA4x5 is a 1U rack-mount combined distribution amplifier and mixer, featuring four mono analogue audio inputs on female XLR connectors and four groups of five outputs on 15-way D-type connectors. Each output group is controlled by a front-panel 5-way DIP switch, allowing selection and mixing of any input, or a 1kHz 0dBu test tone, to that group.
Product Features
Balanced I/O that can be wired unbalanced.
4 input, 4x 5-way (20 output) distribution / mixing.
DIP switch source selection.
Outputs a 1kHz test tone e.g. to check transmission lines.
Input and output gain adjustment.
Front panel cover to secure settings.
Audio present LED’s for inputs or outputs.
Typical Applications
Distribute line-level signals to multiple reporters in a broadcast centre; distribute a PC automation output to up to five studios in a radio station; distribute a main programme output from a mixer to other studios; create multiple mix-minus feeds; or generate multiple stereo-to-mono outputs.
Product Category
Distribution Amplifiers
Technical Specifications
Audio Specification
Maximum Input Level: +28dBu
Maximum Output Level: +28dBu
Frequency Response: 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)
Input Gain Range: Adjustable 8dB loss to 18dB gain (channel 1-4 adjust)
Output Gain Range: Adjustable 8dB loss to 18dB gain (group 1-4 adjust)
Input impedance: >20kΩ bridging
Output impedance: <50Ω
Distortion: 0.01% THD @ 1kHz, ref +8dBu output
Noise: -100dB unity gain, ref +8dBu output
Common Mode Rejection: >66dB typically
Connections
Inputs (4 x Mono): 4 x XLR 3 pin female (balanced, can be unbalanced)
Outputs (20 x Mono): 4 x 15 way D-type male plug (balanced, can be unbalanced)
Mains Input: Filtered IEC, switchable 110-120V, or 220-240V, fused, 9W max
Fuse Rating: Anti-surge fuse 100mA 20 x 5mm (230VAC)
Fuse Rating: Anti-surge fuse 250mA 20 x 5mm (115VAC)
Equipment Type
RB-DA4x5: 4 Input, 4 x 5 output distribution amplifier/mixer
Physical Specification
Dimensions (Raw): 48cm (W) x 15.8cm (D*) x 4.2cm (H) (1U)
Dimensions (Raw): 19” (W) x 6.2” (D*) x 1.7 (H) (1U)
Dimensions (Boxed): 59cm (W) x 27.5cm (D*) x 11cm (H)
Dimensions (Boxed): 23.2” (W) x 10.8” (D*) x 4.3” (H)
Weight: Nett: 1.6kg Gross: 2.2kg
Weight: Nett: 3.5lbs Gross: 4.8lbs
* Note that this product is deeper than standard Redboxes
