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Profile AP740

60W x 4 car amplifier

30 Reviews

Item # 489AP740

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Overview

Our take on the Profile AP740

Give your sound system some West Coast style with a California Series amplifier from Profile. These brushed aluminum and chrome beauties look expensive, so you may not believe your eyes when you check the price! And, you get high-end features like gold-plated outputs, a brushed aluminum case, variable filters, and a 3-year warranty — for less than you might expect.

Give your sound system some West Coast style with a California Series amplifier from Profile. These brushed aluminum and chrome beauties look expensive, so you may not believe your eyes when you check the price! And, you get high-end features like gold-plated outputs, a brushed aluminum case, variable filters, and a 3-year warranty — for less than you might expect.

With the AP740 4-channel amp, powering up your whole sound system has never been easier — or more affordable! The adjustable bass boost lets you dial in some serious low end punch, and the variable high- and low-pass filters let you contour the sound to match your vehicle's speaker setup. You even get a variable treble boost of up to 12 dB at 8,000 Hz for crisp, clean sound across the musical spectrum.

This amp is great. This was the first amp i put in and their is no extra noise, no problems at all. I owe how well it went to Crutchfield with their guides.

mike, Virginia Beach, VA

What's in the Box:

  • Four-channel amplifier with a 40-amp ATC fuse inserted in chassis
  • Spare 40-amp ATC fuse
  • Two 14" two-channel high-to-low level converters (each with bare wire on one end and stereo RCA plugs on the other end)
  • 4 Self-tapping screws (5/8" length)
  • 2.5mm Allen wrench
  • Installation Instructions/Owner's Manual
  • Caution tag (attached to amplifier--warning of bridging amp to a 2-ohm load)

Product Highlights:

  • 60 watts RMS x 4 at 4 ohms
  • 90 watts RMS x 4 at 2 ohms
  • 180 watts RMS x 2 bridged output at 4 ohms
  • 4-ohm stable in bridged mode
  • 2-, 3-, or 4-channel output
  • Tri-way capable (Tri-Way crossover required)
  • fuse rating: 40A
  • requires 8-gauge power and ground leads — wiring and hardware not included with amplifier
  • variable filters (low-pass from 50-250 Hz, high-pass from 80-1200 Hz, at 12 dB per octave)
  • variable treble boost (0-12 dB) at 8,000 Hz, on front channels only
  • variable bass boost (0-12 dB) at 45 Hz, on rear channels only
  • preamp-level inputs (speaker-level to preamp-level adapter included)
  • preamp outputs
  • 11-7/8"W x 2-1/16"H x 10-1/4"D
  • warranty: 3 years
  • Our 60-day money-back guarantee
Reviews

Profile AP740 Reviews

Average Customer Review(s):

(30 Reviews)
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Details

Hands-on research

Product Research

Features
Inputs and Outputs Notes

Warranty Note

Features

Power Strip: This Profile California AP740 amplifier features a bright red power light strip on the top center of the unit to indicate when the amp is turned on. The 3-15/16" power light strip consists of five LEDs. The green LED on the power/speaker terminal side of the amplifier will also light when power is sent to the amp.

High-to-Low Level Converters: The amp is equipped with two external high (speaker) level to low (line) level converters to allow you to connect the amplifier to a receiver or factory radio without RCA preamp outputs or with only one pair of preouts. After splicing the receiver's speaker wires to the converter's speaker wires, you can simply plug the converter into the amp's RCA preamp input.

Line Outputs: The AP740 includes a pair of RCA line outputs for sending an unfiltered signal to another amplifier or component without splitting the signal. Note: The line outputs pass through the signal from channels 3 and 4.

Protection Circuits: This amp has three types of protection circuits: DC offset, short circuit and thermal protection. The red LED on the left side of the amplifier will light to indicate that the amplifier has gone into protection.

Built-In Crossovers: This amplifier includes built-in variable low pass and high-pass filters, one for the front channels (1 & 2) and one for the rear channels (3 & 4), each with a slope of 12dB/octave. The low-pass filters are continuously variable from 50-250Hz, while the high-pass filters are continuously variable from 80Hz to 1.2kHz. Each pair of channels has a three-way switch which lets you choose between low-pass, high-pass, or full-range operation.

Bass/Treble Boost: The rear channels have a bass boost circuit, variable from 0 to 12dB at 45 Hz. The front channels have a treble boost circuit, variable from 0 to 12dB at 8kHz.

Inputs and Outputs Notes

Gold-plated Terminals: The AP740 features gold-plated speaker and power terminals and RCA jacks for maximum signal transfer and corrosion resistance.

Set Screw Terminals: The power, ground, remote turn-on, and speaker connections feature set-screw terminals that can accept up to 6-gauge bare wire. A 2.5mm Allen wrench is supplied to tighten/loosen the set screws.

Remote Turn-on: In addition to turning on and turning off the amplifier via the head unit's remote output, the remote turn-on also operates the reset circuit for the amplifier's protection system. The remote turn-on lead must be connected to the head unit in order to reset the protection circuits.

Warranty Note

Warranty: The manual indicates a 1-year parts and labor warranty, however Profile has extended the warranty to three years parts and labor for units purchased from Crutchfield.

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At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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