8
Classic PRE
User Instructions
Connecting a power amplifier/speakers
Bi-amping
The pre-amplifier output may be used in conjunction with
additional power amplifier(s) to significantly upgrade your
loudspeaker system through Bi-amping.
The Cyrus range of power amplifiers is recommended for
this application as they will have the correct matching
gain. Both stereo and high power monobloc Cyrus power
amplifiers are available to partner your Classic PRE.
NOTE: A bi-amp system can only be set up with speakers
that have bi-wire connections (separate bass and treble
connections).
CAUTION: Ensure that any bi-wire or bridging links are
removed from the speaker terminals before connecting up
a bi-amped system.
Refer to the wiring plan of a bi-amplified system below.
Take care to connect each of the output channels to the
correct power amplifier and loudspeaker.
Connecting speakers
The speakers will connect to the power amplifiers. Refer to
the power amplifier handbook for instructions to connect
the speakers.
R
R
RIGHT
L
MADE IN ENGLAND
DIG 4
DIG 3
DIG 2
DIG 1
AN 4
AN 3
AN 2
PHONO MM
PRE OUT
FIXED OUT
MC BUS
IN
OUT
GROUND
AN 1
L
HEADPHONES
BALANCED PRE OUT
LEFT
BALANCED PRE OUT
UPGRADE
+
-
-
+
+
-
-
+
CHAIN
OUTPUT
INPUT
INPUT
MADE IN ENGLAND
INPUT
RS232
SPEAKER
CHAIN
OUTPUT
INPUT
INPUT
MADE IN ENGLAND
INPUT
RS232
SPEAKER
CHAIN
OUTPUT
INPUT
INPUT
MADE IN ENGLAND
INPUT
RS232
SPEAKER
CHAIN
OUTPUT
INPUT
INPUT
MADE IN ENGLAND
INPUT
RS232
SPEAKER
Classic PRE
Right channel power amplifier
for tweeters connected to
balanced input
Left channel power amplifier
for tweeters connected to
balanced input
Bi-wired speaker
connections
Bi-wired speaker
connections
Right channel power amplifier for
bass units connected to chain out
Left channel power amplifier for
bass units connected to chain out