Owner manual

DA6 OPERATORS’ MANUAL

INTRODUCTION
The distribution of mono and stereo balanced audio si
g
nals from a sin
g
le source to
multiple destinations has man
y
applications, includin
g
: multi-zone sound reinforcement
installation; live sports events covera
g
e; broadcast studios; video suites; duplication
houses or where hi
g
h qualit
y
audio has to be distributed to a number of locations down
lon
g
cable runs.
The Drawmer DA6 is a six channel stereo output ( or twelve mono ) distribution amplifier
featurin
g
XLR balanced connections. Optional transformer balanced outputs are offered
for instanced where electrical isolation of remote equipment is required.
The electronicall
y
balanced stereo input features individual left/ri
g
ht level controls with
LED bar
g
raph meterin
g
enablin
g
the correct balancin
g
of stereo material or two mono
si
g
nals. Each of the six output pairs incorporate further left/ri
g
ht level controls and a
Mono/Stereo switch which will mix two stereo si
g
nals, or, connect a sin
g
le mono si
g
nal
to both stereo outputs.
The monitor section consists of a channel select so that the individual left/ri
g
ht output
level of each channel can is displa
y
ed on the output LED bar
g
raph and can be
simultaneousl
y
heard at the front-panel headphone jack.
An auxiliar
y
pair of balanced output jacks provide a facilit
y
to connect further DA6 units
where even more distribution is required. These outputs are post input
g
ain trim, and
ma
y
be fitted with optional output isolatin
g
transformers.
INSTALLATION
The DA6 is desi
g
ned for standard 19" rack mountin
g
and occupies 1U of rack space.
Avoid mountin
g
the unit directl
y
above power amplifiers or power supplies that radiate
si
g
nificant amounts of heat. Alwa
y
s connect the mains earth to the unit. Use fibre or
plastic washers to prevent the front panel becomin
g
marked b
y
the mountin
g
bolts.
AUDIO CONNECTIONS
Input and Output audio connections are provided via balanced XLRs at a level of +4dBu.
This applies to both inputs and outputs. The wirin
g
convention bein
g
:
Pin 1 Ground; pin 2 Hot; and pin 3 Cold.
For use with unbalanced s
y
stems, the Cold pin 3 must be
g
rounded at both input and
output inside the XLR connectors.
The Stereo Aux. Outputs are balanced ¼" (TRS) jack sockets, where Tip connection is
Hot; Rin
g
is Cold; and Sleeve is Ground. These connections are offered for chainin
g
multiple DA6 units if there is a requirement for more than 6 stereo outputs. For use with
unbalanced s
y
stems, use mono jack plu
g
s, or connect the Rin
g
(Cold) to the Sleeve
terminal inside the Jack plu
g
s.