Rockford Fosgate punch 250M - Manual (Page 4)

4
D
ESIGN
F
EATURES
I
NSTALLATION
1. Cast Aluminum Heatsink – The cast aluminum heatsink of the Power amplifier dissipates heat
generated by the amplifier's circuitry. The inherent advantage of casting provides a 30%
improvement of cooling over conventional extrusion heatsink designs.
2. 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.
3. Variable Crossover – The amplifiers have a built-in 24dB/octave Butterworth filter with a
crossover point variable from 50Hz to 250Hz. The crossover can be set to Low-Pass (LP) or it
can be bypassed by setting it to All Pass (AP).
4. RCA Input Jacks – The industry standard RCA jacks provide an easy connection for signal level
input. They are gold-plated to resist the signal degradation caused by corrosion.
5. LED Power Indicator – The LED illuminates when the unit is turned on.
6. REM Terminal – This spade terminal is used to remotely turn-on and turn-off the amplifier when
+12V DC is applied.
7. Power Terminals – The power and ground connectors on the Power amplifier are gold-plated
and will accommodate up to 8 AWG wire maximizing the input current capability of the
amplifier.
8. Punch Bass – The Punch Bass control helps correct for acoustical deficiencies in the listening
environment by helping produce full range sound without adding excessive boost.. The Punch
Bass control is a narrow band adjustment at 45Hz variable from 0dB to + 18dB. Connection is
made with a cable using RJ-45 and can be installed under the dash for remote control access.
9. 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.
10. Speaker Terminals – The heavy duty, gold-plated terminal block connectors (+ and –) will
accept wire sizes from 8 AWG to 18 AWG. These gold-plated connectors are immune to
corrosion that can cause signal deterioration.
INSTALLATION CONSIDERATIONS
The following is a list of tools needed for installation:
Volt/Ohm Meter
Wire strippers
Wire crimpers
Wire cutters
#2 Phillips screwdriver
Battery post wrench Hand held drill w/assorted bits
1/8" diameter heatshrink tubing
Assorted connectors
Adequate Length—Red Power Wire
Adequate Length—Remote Turn-on Wire
Adequate Length—Black Grounding Wire