Rockford Fosgate 250M manual Design Features, Installation Installation Considerations

DESIGN FEATURES

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

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

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