3
The Reference subwoofer amplifiers are
single-channel amplifiers. There are two sets of
terminals to make it easy to connect multiple
woofers. Either set of (+/–) terminals may be
used when connecting woofers.
To the right are two application diagrams to help
plan your subwoofer system installation. Figures
3 and 4 show how to configure the Reference
subwoofer amplifiers (models 311a, 611a and
1211a).
NOTE:
For simplicity, Figures 3 and 4 do not
show power, remote and input connections.
NOTE:
Minimum speaker load is 2 ohms.
A
PPLICATIONS
– 311a, 611a
AND
1211a
The 7521a amplifier can be set up for stereo or
bridged-mono operation, as shown in Figures 5
and 6.
NOTE:
For simplicity, Figures 5 and 6 do not show
power, remote and input connections.
NOTE:
Minimum speaker impedance for
stereo operation is 2 ohms. Minimum speaker
impedance for bridged operation is 4 ohms.
A
PPLICATIONS
– 7521a
Figure 3.
Reference subwoofer amplifier with two woofer connections.
Figure 4.
Reference subwoofer amplifier with one woofer connection.
Figure 5.
7521a amplifier set up for stereo operation.
Figure 6.
7521a amplifier set up for bridged-mono operation.
