A308 Integrated Amplifier Instructions for use Page 6 of 9
Issue 3: March 2003
Using good quality co-axial audio leads,
connect the left and right outputs from your
CD player to the
CD
sockets, your tuner to
the
TUNER
sockets and any other source
to the
AUXILIARY 1
RCA input sockets.
Connect the A308’s
TAPE
input sockets to
the line output of your tape recorder, and
A308’s
TAPE RECORD
output sockets to
the line input sockets of the tape deck.
OUTPUT CONNECTIONS
Connect your loudspeakers to either of the
two pairs of terminals on the back panel
marked as
LEFT
and
RIGHT SPEAKER
outputs.
Note: the combined load imped-
ance must not be less than 4 ohms.
PRE-AMPLIFIER OUTPUT
The A308 amplifier has its pre-amplifier
output available from RCA sockets on the
back panel marked
PRE-OUT
, and is con-
trolled by the volume adjustment.
This is to allow “bi-amplification” using
suitable external amplifiers and crossover
networks to power the speaker drive com-
ponents separately, giving noticeable
improvement in clarity, imaging and bass
weight.
In this arrangement, typically the A308’s
speaker outputs are used to drive the speak-
er’s “tweeter” (high audio frequencies), and
an external stereo amplifier drives the
“woofer” (low frequencies).
The A308’s
PRE OUT
RCA sockets
would therefore be connected to the input
of the external “woofer” amplifier in this
example.
If you are in doubt about bi-amplification,
please contact your dealer for advice.
CONNECTIONS
All input, output and power connections
should be made with the mains power
switched OFF.
INPUT CONNECTIONS
The A308 integrated amplifier has one pair
of phono inputs, which can be used either
for moving magnet (MM) or the lower out-
put moving coil (MC) pickups.
The phono input sensitivity requirement
can be changed from MM to MC by press-
ing the
MM/MC
push-button switch locat-
ed on the rear panel.
Important
- Do not operate the
MM/MC
switch with the volume control turned up.
Some turntable/pickup arm combinations
are fitted with an extra wire for chassis
earthing. This should be connected to the
earth terminal on the back panel.
The A308 also has four “line level” inputs
controlled by the internal volume setting.
They all have the same input sensitivity,
and are therefore suitable for use with any
source component having an output of at
least 300mV. The four sockets on the rear
panel are marked
CD
,
TUNER, AUXIL-
IARY 1,
and
TAPE
, corresponding with
function selector buttons on the front
panel.
The
AUXILIARY 2
(HOME THEATRE
DIRECT)
sockets are intended for home the-
atre use. When selected, they are routed
inside the A308 directly to the power
amplifier circuit, which is not controlled
by the volume adjustment.
Do not therefore connect these sockets to a
source without its own volume control.
(continued....)
