System Flexibility; Amplifier Bridging - Rockford Fosgate POWER 650 MOSFET Owner's Manual

SYSTEM FLEXIBILITY

A combination of switched crossovers and four bridgeable
channels in the Power 650 MOSFET provides unmatched
system flexibility with simple wiring changes. Some of the
possibilities are:
Biamplified Stereo - A pair of channels drives mid and high
frequency speakers; another pair drives woofers. The cross-
overs are set to separate the input frequencies into high and
low frequencies for each speaker system.
Biamplified Stereo with Bridged Mono Woofer - Otherwise
similar to the Biamplified stereo system above, this arrange-
ment bridges the two low channels into a single woofer.
Bridged Stereo - Each pair of channels on Left and Right sides
is bridged into a full-range speaker system. The crossovers
are set at Flat position.
Bridged Mono Biamplified - Both Left and Right channels
c o m b i n e i n t o o n e m o n o c h a n n e l . T h e h i g h - f r e q u e n c y
channel pair is bridged into midtweeter speaker system and
the low-frequency pair is bridged into a woofer. The cross-
overs are set to separate woofer and midrange frequencies.
Dual Stereo - With the crossovers set at "Flat" position, the
power amp will act as two separate stereo amplifiers, one
channel pair for rear full range speakers, one pair for front
full-range speakers. If only one set of speakers can handle
bass frequencies, the "High" crossover can be set to cut off
the front speakers' low frequency drive.
All of these system configurations are obtained with simple
wiring variations; there are no special "black boxes" to buy and
the system may be modified at any time.

AMPLIFIER BRIDGING

Operating an amplifier in the "bridged" or "strapped mono"
mode means driving one speaker or speaker system with two
amplifier channels. Each channel will put out full power into its
half of the speaker load, so the system can drive the speaker with
double the power that a single amplifier channel would be
capable of.
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