Modes: Stereo/Parallel/Bridge; Speaker Impedance - Yamaha C450 Owner's Manual

Modes: STEREO/PARALLEL/BRIDGE

STEREO mode
In this mode, channels A and B operate independently
(as a conventional stereo amp).
The CHANNEL A input signal will be output from
the CHANNEL A output terminals, and the CHAN-
NEL B input signal will be output from the CHAN-
NEL B output terminals.
PARALLEL mode
In this mode, the CHANNEL A input signal will be
output from the output terminals of both channels A
and B. The CHANNEL B input terminals is not used.
The (channel) A and
independently.

SPEAKER IMPEDANCE

In STEREO and PARALLEL modes, the minimum
load (=speaker) impedance is 4Ω. In BRIDGE mode it
is 8Ω.
Make sure that the impedance does not fall below this
specified impedance.
STEREO mode connections
BRIDGE
Set to STEREO
STEREO
PARALLEL
PARALLEL mode connections
BRIDGE
Set to PARALLEL
STEREO
PARALLEL
4
volumes can be adjusted
SPEAKERS
CHANNEL B CHANNEL A
BRIDGE
STEREO
MAX. OUTPUT 450W/4Ω (STEREO)
MAX. OUTPUT 900W/8Ω (BRIDGE)
– + + –
4Ω min. 4Ω min.
Speaker System
SPEAKERS
CHANNEL B CHANNEL A
BRIDGE
STEREO
MAX. OUTPUT 450W/4Ω (STEREO)
MAX. OUTPUT 900W/8Ω (BRIDGE)
– + + –
4Ω min. 4Ω min.
Speaker System
BRIDGE mode
In this mode, the CHANNEL A input signal will be
output from the BRIDGE output terminals. In this
case, use the front panel (channel)
to adjust the volume.
BRIDGE mode connections
BRIDGE
Set to BRIDGE
STEREO
PARALLEL
volume control
A
SPEAKERS
CHANNEL B CHANNEL A
BRIDGE
STEREO
MAX. OUTPUT 450W/4Ω (STEREO)
MAX. OUTPUT 900W/8Ω (BRIDGE)
– +
8Ω min.
Speaker System