6 Way Stereo AES/EBU Digital Distribution Amplifier with
Dual Power Supplies
Audio & Video Interfaces - Audio Distribution Amplifiers
Specification For RB-DDA6A-2P
Audio Specification
RB-DDA6A-2P 6 Way Stereo AES/EBU Digital Distribution Amplifier
with Dual Power Supplies
The RB-DDA6A-2P digital distribution
amplifier is used for distributing digital
audio data in AES/EBU format, repeating
both the audio data and the status
information of the input whilst renormalising to standard digital audio levels.
It has a single XLR-3 female AES/EBU audio
input which is distributed to 6 XLR-3 male
AES/EBU outputs.
Applications include distributing audio from
a digital mixing desk to multiple digital
recorders, or feeding multiple studios with
an output from a flashcard player.
It can accept input sample rates in the range
of 30kHz - 100kHz, and bit rates of 16, 20
and 24 bit. So, it can be used for standard
CD signal distribution at 16 bit 44.1kHz,
as well as for high quality 24 bit 96kHz
The unit provides redundancy protection
by using two power supply units that can
be supplied from separate mains feeds. The
unit automatically load shares between the
two supplies so that if either supply should
fail the unit will continue to work correctly.
If both supplies fail the input is connected
directly to output 1.
The condition of the two supplies is
indicated on the front panel by two red LEDs
which illuminate to indicate the correct
function of the supply. On the
alarm output connector there is a
changeover relay to indicate the status
of each supply. This is normally closed to
indicate power fail and once the supply
is working correctly the relay activates to
make a normally open contact.
Sample Freq Range:
30-100kHz (i.e. including
32kHz, 44.1kHz, 48kHz, 64kHz,
88.2kHz and 96kHz
Signal Level:
2V/7V peak to peak min/max
Audio Inputs:
1 x AES/EBU XLR 3 pin female
Audio Outputs:
6 x AES/EBU XLR 3 pin male
Alarm Outouts:
2 x Relay output indicators on
1 x 9 pin D-Type socket
Mains Input:
2 x Filtered IEC, 85-264V
switchable, fused, 6W max
Fuse Rating:
2 x Anti-surge fuse 1A 20
x 5mm
Equipment Type
6 way AES/EBU stereo digital
distribution amplifier with
dual power supplies
Physical Specification
Dimensions (Raw):
48cm (W) x 10.8cm (D)
x 4.2cm (H) (1U)
19” (W) x 4.3” (D) x 1.7” (H)(1U)
Dimensions (Boxed):
58.5cm (W) x 22.5cm (D)
x 7cm (H)
23” (W) x 8.9” (D) x 2.8” (H)
Nett: 1.5kg Gross: 2.0kg
Nett: 3.3lbs Gross: 4.4lbs
UK Office:
Sonifex Ltd
61 Station Road, Irthlingborough,
Northants, NN9 5QE, UK
Tel: +44 (0) 1933 650700
Fax: +44 (0) 1933 650726
Email: [email protected]
Australian Office:
Sonifex Pty Ltd
12/6 Leighton Place,
Hornsby NSW 2077, Australia
Tel: +61 (2) 9987 0499
Fax: +61 (2) 9476 4950
Email: [email protected]
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