Features
Controls
Inputs and Outputs
Specifications

Features

V12 Amplifier: This amplifier is part of Alpine's V12 series of amplifiers.

STAR Topology: Alpine's unique STAR (Signal Transit for Accurate Response) Circuit PCB design provides a single common ground for all amp sub-blocks, preventing ground interference and minimizing internal noise.

Bass Engine: Bass Engine is a set of functions which help provide you with more control over your system in order to tailor the sound to your personal tastes.

Verification Certificate: The amplifier comes with a certificate that informs you of the per channel RMS output of the particular amplifier. It lists the model number, serial number, test date, and the test conditions (voltage, impedance).

Sub-sonic Filter: The sub-sonic filter is used to filter out low frequencies that you cannot hear but can "rob" power from the amplifier. The sub-sonic filter on this amplifier affects the rear channels only, and the crossover point is fixed at 15Hz.

Built-in Variable Electronic Crossover: The built-in low-pass/high-pass crossover is adjustable from 30 to 400Hz with a slope of 12dB/octave.

Protection Circuitry: The protection circuitry guards against accidents and undesired operation. Included are Over-voltage and Thermal overload.

Controls

Top of Amplifier: The amplifier has a metal hood that flips up to reveal the control panel. The control panel consists of the following controls:

• Front and rear variable gain controls: these rotary controls allow you to match the input sensitivity of the amp to the particular source unit you are using
• Front and rear frequency control: these rotary controls allow you to adjust the crossover frequency from 30Hz to 400Hz
• Crossover mode selector switch: let's you select high-pass, low-pass, or full-range operation for the speaker outputs
• Input channel selector switch: allows you to select between 2-channel, 4-channel, and summed input options
• Subsonic filter: lets you turn the subsonic filter on or off

Inputs and Outputs

Front of Amplifier: 

• Battery (+12 V): gold-plated screw terminal that will accept up to 8-gauge wire or a spade up to 0.355" wide
• Remote (turn-on): gold-plated screw terminal that will accept up to 8-gauge wire or a spade up to 0.355" wide
• GND (ground): gold-plated screw terminal that will accept up to 8-gauge wire or a spade up to 0.355" wide
• Speaker Output: 0.332" wide gold-plated terminal strips for channels 1-4
• RCA Input: two sets of gold-plated RCA line input jacks
• RCA Output: gold-plated RCA line output jacks
• Speaker-level Inputs: Molex plug input for included harness

Specifications

RMS Power Rating (measured at 14.4V):

• Per Channel Into a 4-Ohm Load: 55 watts x 4
• Per Channel Into a 2-Ohm Load: 65 watts x 4
• Bridged Into a 4-ohm Load: 130 watts x 2

RMS Power Rating (measured at 12.0V):

• Per Channel Into a 4-Ohm Load: 35 watts x 4
• Per Channel Into a 2-Ohm Load: 45 watts x 4
• Bridged Into a 4-ohm Load: 90 watts x 2

Note: Minimum impedance is 2-ohms stereo.