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Power Supply: The MRP-M500
amplifier's power supply uses MOSFETs to convert DC battery voltage to the
higher DC voltages needed for high power. It supplies positive and negative
voltages around 0V, rather than around 6V as with conventional single-polarity
power supplies. The result is higher power levels and a dynamic range wider by
as much as 10dB.
Inputs: The amplifier offers
both line-level and speaker-level inputs for 2 channels. The supplied speaker-level
input harness allows you to connect this amplifier to a receiver without preamp
outputs; aftermarket or factory. The speaker level inputs will accept the output
from a high powered radio.
Terminal Covers: The amp comes with
plastic covers that protect and insulate the RCA, power, and speaker connections.
machine screws attach the covers to the amplifier.
Low Pass Filter: The amp is
equipped with a 50-200Hz variable low-pass filter with a slope of 24dB/octave.
This being a mono subwoofer amp, the crossover is always engaged.
Subsonic Filter: This amp
utilizes a subsonic filter at 15Hz to eliminate super low frequencies that can rob
power and damage speakers. The subsonic filter operates at all times, and cannot
be turned off.
Bass EQ: The Bass EQ circuit
provides a variable boost (0-12dB) at 50 Hz.
Left Side Of Amplifier:
- GND (ground): gold-plated screw terminal, 0.33" wide
gold-plated screw terminal, 0.33" wide
Remote: gold-plated screw terminal, 0.33" wide
Speaker Output: gold-plated screw terminal, 0.33" wide
Note: Alpine recommends
8 gauge power and ground wire (minimum).
Right Side Of Amplifier:
- Line Inputs: 1 pair of gold-plated
stereo RCA jacks
- Speaker Level Input: Molex
plug input for supplied 4-pin harness