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Alignment Test Tone
Each of the output groups has the capability of selecting a 1kHz, 0dBu test
tone. This signal can be used as a reference to set the output gain levels.
Once these values are known then the input gains can be set by providing a
known tone to the input and adjusting the input gain to the required level.
It is possible to use this test tone as a reference level for the input gain by
adjusting the output gains to unity and then looping back any output to
the input connector. The on-board oscillator is temperature sensitive and
in cold conditions may take a short time to start oscillating. In any case
you should always allow the unit to fully come to its normal operating
temperature before adjusting the gains.
Technical Specifications RB-DA4x5
Audio Specifications
Maximum Input Level:
+28dBu
Maximum Output Level: +28dBu
Distortion:
0.01% THD @ 1kHz, ref +8dBu output
Noise:
-100dB, unity gain, ref +8dBu output
Common Mode Rejection:>66dB typically
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)
Audio Distribution Amplifier - RB-DA4x5
Connections
Inputs (4 x Mono):
4 x XLR 3 pin female (Balanced)
Outputs (20 x Mono):
4 x 15 way D-type (Balanced)
Mains Input:
Filtered IEC, 110V-120V, or 220-240V
switchable, fused, 9W maximum
Fuse Rating:
Anti-surge fuse 100mA 20 x 5mm (230VAC)
Anti-surge fuse 250mA 20 x 5mm (115VAC)
Equipment Type
RB-DA4x5:
4 input to 20 output distribution amplifier
& mixer
Physical Specifications
Dimensions (Raw):
48cm (W) x 15.8cm (D*) x 4.2cm (H) (1U)
19" (W) x 6.2" (D*) x 1.7 (H) (1U)
Dimensions (Boxed):
59cm (W) x 27.4cm (D*) x 10.8cm (H)
23.2" (W) x 10.8" (D*) x 4.3" (H)
Weight:
Nett: 1.6kg Gross: 2.2kg
Nett: 3.5lbs Gross: 4.8lbs
* Note that this product is deeper than standard redboxes.
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