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You can operate each pair of channels in both stereo and mono (3 channel or tri-
mode) at the same time by using highpass filters (bass blockers) on the higher
frequency stereo channels, and a lowpass filter (coil) on the subwoofers. The
frequencies of the chosen highpass and lowpass filters must not overlap (allow the
mids and highs to play the same music as the subs) or the impedance the amplifier
sees at those frequencies will be cut in half possibly causing the protection circuit to
activate.
Mixed Mono Output
All multi-channel TUBE DRIVERS are capable of being bridged into a 4-Ohm
mono output without switches or bridging modules.
You can achieve this mono channel by using the left positive (+) speaker connection
and the right negative (-) speaker connection. You can bridge the front or rear
channels in the same way. (Refer to the end panel drawing on page 10.)
Note: Total bridged impedance of less than 4-ohms may trigger the protection
circuitry causing reduced output and may eventually damage your amplifier.
Bridging
SubSub
Tweeter Tweeter Tweeter
MidRange
MidRange
MidRange
Low pass
filter
L-L+
R+R- L-L+
R+R-
Highpass
Filter
Bandpass
Filter
Highpass
Filter
Bandpass
Filter
Highpass
Filter
Bandpass
Filter
FRONT REAR
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