Owner's Manual

13
2-Ch. Amplifier - 3-Ch. Mode
It is possible to run the 2Ch amps in “3-Channel” mode by running a pair of speakers for
the mids and highs on left and right channels, and at the same time run a woofer bridged
between the L+ and R- terminals as shown. However, since each channel will see 1/2
the impedance of the woofer you must use a woofer of no less than 4Ω. The amplifier
sees impedance by frequency, so you can have two 2Ω loads but you must use a passive
crossover on each speaker in the three channel mode. With the crossovers in the line,
the amplifier will always see a minimum load of 2Ω on each channel at all frequencies.
• Main speakers can be 2Ω~4Ω. Woofer can be 4Ω~8Ω but cannot be less than
4Ω (as in any bridged situation)
• The active amp crossovers are not used in this system
A 3-Way hookup requires a coil on the woofer and capacitors on the highs to act as a
crossover and maintain correct impedance. Consult the speaker manufacturer for correct
cap and coil values.
X-OVER
WF
WF
TW TW
X-OVER
2 OHM MIN LOAD
4 OHM
MIN LOAD