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Features
Inputs and Outputs
Controls
Additional Specifications

Features

Line Level Inputs: The RCA type line-level inputs have a gain (Input Sensitivity) control that will accept an input signal of 200mV to 5.0 Volts.

Speaker Level Input: The KAC-7252 comes with a speaker level input harness. Once you splice the speaker wires from the receiver to the harness, you have plug-in convenience to the amplifier. This feature makes it easier to add an amplifier to a factory radio or to a receiver with no preamp outputs. The maximum power output from the source receiver can be no more than 40 watts.

Line Level Output: The amplifier has a line level output for feeding a second amplifier. The output is the same signal fed to the input.

Crossovers: The KAC-7252 has built-in high pass and low pass crossovers. The high pass crossover's slope is 12 dB/octave and is continuously variable from 50Hz to 200Hz. The low pass crossover's slope is 24 dB/octave and is also continuously variable from 50Hz to 200Hz.

Remote Bass Boost: The bass boost level is adjustable from 0-18 dB and the boosted frequency is adjustable from 40Hz to 100 Hz. The adjustments to the bass boost circuit are made using the wired remote control. The remote is designed to mount in the front of the vehicle for easy access and is wired to the amp using the included 20' cord. The remote's mounting hardware is also included. The width of the remote is 2.763", the height is 1.301", and the depth is 1.961".

Fan: There is a fan on top of the amp to help dissipate heat and ensure cool, reliable operation.

Stereo/Mono Operation: If the KAC-7252 is to be bridged, the operation mode switch on the top of the amp is set to mono. When switched to Mono, the signal from the left channel input only is used.

Protection circuitry: The amplifier features protection circuits that will turn the amp off in case of the following events:

• Speaker output contacts ground
• Speaker wire short-circuits
• Unit malfunctions and DC is sent to speaker output
• Internal temperature is too high
• Loss of ground of head unit or amp

Inputs and Outputs

Front of the Amplifier

• Fuse: 40 amp
• Power: Screw terminal (0.55" wide)
• Ground: Screw terminal (0.55" wide)
• Remote turn-on: Screw terminal (0.33" wide)
• Speaker outputs: Screw terminals (0.33" wide)
• Remote: Remote bass boost control jack (RJ-45)
• GND: Phillips-head screw for RCA signal ground
• Speaker-level input: Multi-pin input for use with included speaker level input harness
• Line in: One pair RCA inputs
• Line out: One pair RCA outputs

Controls

Top of the Amplifier

• Crossover: High Pass/Low Pass/Off
• Operation Mode: Stereo/Mono
• High Pass Frequency: 50-200 Hz
• Low Pass Frequency: 50-200 Hz
• Input Sensitivity: 200 mV-5 V

Additional Specifications

CEA-2006 Compliant: CEA-2006 is a new system of testing & measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for determining an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or less Total Harmonic Distortion (THD) plus noise, and at a frequency range (for full range amplifiers) of 20 Hz to 20,000 Hz. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis.