Rockford Fosgate Punch P450.4, Installation Manual, Page: 4 / 64

1.
Power LED (Top of unit)
– This Blue LED illuminates when the unit is turned on.
2.
Thermal LED (Top of unit)
– This Red LED illuminates if the amplifier reaches the third stage of
thermal protection.The amplifier will shut down to cool if this occurs.
3.
Protect LED (Top of unit)
– This Yellow LED illuminates if a short circuit or too low of an impedance
is detected at the speaker connections.The amplifier will automatically shut down if this occurs.
4.
Cast Aluminum Heatsink
– The cast aluminum heatsink of the Punch amplifier dissipates heat
generated by the amplifier's circuitry.
5.
Speaker Terminals
– The heavy duty, nickel-plated clamp wire connectors (
+
and
-
) will accept wire
sizes from 8 AWG to 18 AWG.
6.
Remote Bass
– Boosts low frequency information to overcome road noise and put the
bass in your
face
.The Remote Bass control is a narrow band adjustment at 45Hz variable from 0dB to +18dB with a
Gyrator based Punch EQ that eliminates frequency shift with boost. Connection is made with a RJ-45
cable and can be installed in a variety of ways for easy control access.An optional Para-Punch Remote
Bass is available which adds an adjustable center frequency control with the adjustable boost control.
7.
Gain Control
– The input gain control is preset to match the output of most source units. It can be
adjusted to match output levels from a variety of source units.
8.
Variable Crossover
– Is a built-in 12dB/octave Butterworth filter selectable for High-Pass (HP),All Pass
(AP), or Low-Pass (LP) operation variable from 40Hz to 400Hz.
9.
RCA Input Jacks
– The industry standard RCA jacks provide an easy connection for signal level input.
They are nickel-plated to resist the signal degradation caused by corrosion.
10.
RCA Pass-Thru Jacks
– The Pass-Thru provides a convenient source for daisy-chaining an additional
amplifier without running an extra set of RCA cables from the front of the vehicle to the rear amplifier
location.
11.
REM Terminal
– The heavy duty, nickel-plated captive c-clamp wire connector will accept wire sizes
from 12 AWG to 24 AWG.This terminal is used to remotely turn-on and turn-off the amplifier when
+12V DC is applied.
4
D
ESIGN
F
EATURES
Connections