Rockford Fosgate 100X2 - Manual (Page 17)

The Punch amplifiers are capable of bridged mono
configurations. This configuration enables you to:
• Run a single woofer in a stereo system
• Run two bridged amplifiers as a high power stereo
system
• Run one amplifier with a bridged mono woofer and
another as a high-frequency stereo amp, etc.
For more information refer to the wiring diagrams begin-
ning on page 17.
Caution! Punch amplifiers are not recommended for
impedance loads below 2
Ω
stereo or 4
Ω
bridged.
Be sure to observe proper speaker terminal polarity
throughout the system. It is critical for the Punch to
use the correct negative terminals for right and left
channels, since the RIGHT NEGATIVE (–) terminal is
the “hot” terminal for the right speaker. DO NOT
chassis ground any of the speaker leads as unstable
operation may result.
When wiring speakers to the amplifiers, we recommend
using fuses for speaker protection. (See your Authorized
Rockford Fosgate Dealer for more information.)
A passive crossover is a circuit that employs capacitors
and/or coils and is placed on speaker leads between the
amplifier and speaker to delegate frequencies in the
speaker’s optimum performance range.
The most commonly used filter networks are 6 dB per
octave systems. These are easy to construct and require
a minimum number of parts. A filter network can perform
one of three functions. These are highpass (capacitors),
lowpass (inductors, chokes or coils) and bandpass (com-
bination of a capacitor and a coil).
This result, limiting the types of frequency to the speaker,
is directly dependent upon the speaker’s impedance and
component values.
14
Mono
Configura-
tion
Passive
Crossover
Impedance