Acoustic Energy MA1108 - Manual (Page 4)

Page 2
Diagram One 6. Controls & System Setup
The Linear Sub requires
connection both to mains power
and an appropriate audio signal.
The connection sockets are located
on the back panel illustrated
opposite. Leave the subwoofer
switched-off at the mains until all
connections are made and ensure
that the subwoofer level control,
also located on the back panel
is turned fully anti-clockwise.
Connecting your Linear Sub
to an audio signal is a simple
process, however, there are some
choices to be made concerning
connection mode.
Signal Input Connections
Linear Sub is fitted with both line-
level and high level inputs.
The RCA Phono socket line level
inputs are intended to accept
signals from either audio-visual
processors or stereo preamplifiers
(or integrated amplifiers incorporating preamplifier
outputs). Connect to these input sockets using an
appropriate RCA Phono connection cable. Ensure
that the cable is of good quality. If connecting from
a stereo amplifier, connect the left output to the
left input and the right output to the right input.
If connecting from an audio visual processor the
single subwoofer output may be connected to
either left or right input.
The binding-post high level inputs are intended
to be used in conventional stereo systems where
the Linear Sub is to augment the low frequency
performance of a pair full range speakers, and
where no appropriate line-level signal is available.
Connect using simple twin core cable from either
the amplifier’s speaker terminals or from the full-
range speaker terminals themselves. Take care not
to reverse the polarity of any connections (connect
positive to positive and negative to negative) or
any left/right orientation (connect left to left and
right to right). The binding posts will accept either
“4mm” plugs or stripped wires. Take care if using
stripped wires not to “short” the amplifier by
unintentionally connecting stray wires.
Note: An alternative high level input connections
scheme is to connect from the stereo amplifier to
the subwoofer high level inputs and then from the
subwoofer high level outputs (see the following
paragraph) to the full-range speakers. This scheme
however both demands longer lengths of high
quality speaker cable and introduces unnecessary
connections between the amplifier and full-range
speakers.
Signal Output Connections
Line level and high level signal output connections
are also fitted to the Linear Sub rear panel. Both
carry an output signal identical to the input signal
and may be used for example to transfer the
signal back to a power amplifier or to multiple
subwoofers.
Mains Connection
After checking that the mains voltage specified on
the subwoofer rear panel is set correctly, connect
the subwoofer via its IEC mains input to a mains
wall socket. Use only the mains cable supplied with
the subwoofer.
Left
Front
Viewing/listening position
Right
Front
Centre
Left
Surround
Right
Surround
Alternative
or Extra Left
Surround
Alternative or
Extra Right
Surround
Sub-woofer
5. Connecting
Linear 8 Rev E 16/8/05, 9:57 am 2