Input Connections - Rockford Fosgate POWER 1000 MOSFET Owner's Manual

When amplifiers are bridged into a single speaker, each amplifier
"sees" half the total speaker impedance.
Rockford-Fosgate amplifiers are designed so that connecting
the amplifier for bridged mode is a simple matter of using the
correct speaker leads as shown in the appropriate system
diagram. In theseamplifiers, one channel of each pair is inverted
in the amplifier. In normal stereo use, the inverted channel
output isconnected to the negative lead of its speaker load, thus
preserving the system's polarity. In the bridged mode, the
inverted channel is connected to the negative lead of the
speaker to be bridged, and the positive lead is connected to the
non-inverted channel. This provides the out-of-phase drives
required for bridged operation.
The Power 1000 MOSFET is designed so that the four amplifier
sections can be bridged in several ways. Right and Left High-
Frequency channels can be bridged. The Right Low and Left
Low-Frequency channels can be bridged, the Right High and
Right Low channels can be bridged together, and the Left Low
and Left High channels can be bridged. These combinations
allow an unmatched flexibility in designing stereo, biamplified,
and hybrid bridged systems.
The Power 1000 MOSFET amplifier can deliver 500 Watts into a
bridged 4-Ohm speaker. This is enough power to destroy almost
any speaker made. Be sure to use fuses.
INPUT CONNECTIONS (RCA PIN JACKS)
Theamplifier'ssignal
to the source unit's signal outputs.
If the source unit has "RCA" pin jack outputs, connect the Power
1000 MOSFET to the source with a standard male to male "RCA"
cable. In some cases, system noise rejection will be improved by
using high-quality
connecting cables.
When the source unit does not have pin jack outputs, get an
appropriate adapter from your dealer, or use Rockford adapter
cable No. AS-524.
cable No. AS-524.
Some higher-powered source units employ "bridged" output
circuits ("BTL"outputs).
rated at 15 to 25 Watts output by the manufacturer. To connect
inputfemalepin
braided-shield
Units with bridged outputsare normally
-3-
jacksshould
or double-shielded
beconnected
inter-