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Crutchfield

Clarion APX1300

Mono amplifier
400 watts RMS x 1 at 2 ohms

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  • Clarion APX1300

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Item #: 020APX1300
 

Review Summary

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Our take on the Clarion APX1300

by Buck Pomerantz
Clarion

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

The Clarion APX1300 mono amplifier pumps out up to 400 watts RMS, with the versatility to work in a variety of systems. This mono amp delivers full-frequency response from 20 to 30,000 Hz, so you can use it to power a full-range speaker, or to drive a subwoofer system.

You can tune the APX1300 with its built-in variable low-pass filter and selectable bass boost for use in a sub system. Speaker-level and preamp-level inputs allow you to hook into almost any factory or aftermarket stereo. However you use it, this amp will supply your system with accurate, reliable power.

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Highlights:

  • mono car amplifier
  • 300 watts RMS x 1 at 4 ohms (400 watts RMS x 1 at 2 ohms)
  • variable low-pass filter (50-300 Hz, 12 dB/octave)
  • selectable bass boost (0, 6, 12 dB at 50 Hz)
  • Class-AB amplifier design
  • MOSFET power supply
  • CEA-2006 compliant
  • speaker- and preamp-level inputs
  • gold-plated connector terminals
  • fuse rating: 20A x 3
  • 8-gauge amp wiring kit with 60-amp fuse recommended — wiring and hardware not included with amplifier
  • 13"W x 2-3/4"H x 10-7/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Performance
RMS Power Output (Watts x Channels)
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300 x 1
Peak Power Output (Watts x Channels)
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400 x 1
Power at 2 Ohms (Watts x Channels)
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400 x 1
Bridged Power (Watts x Channels)
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---
Minimum Impedance Bridged
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---
Minimum Impedance Unbridged
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2
Best Frequency Response
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20-30k Hz
THD at Rated RMS Power
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0.1%
Signal to Noise Ratio
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85 dB
Input Voltage
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14.4v
Features
Amplifier Class
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AB
Low-Pass Crossover Frequency
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50-300 Hz
Low-Pass Slope (dB/octave)
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12 dB
High-Pass Crossover Frequency
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N/A
High-Pass Slope (dB/octave)
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N/A
Bass Boost
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0, +6, +12 dB
Bass Boost Frequency
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45 Hz
Fan Cooled
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No
Fuse Rating
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20 x 3
Speaker Level Inputs
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Harness
Preamp Outputs
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No
Width (inches)
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13
Height (inches)
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2-3/4
Depth (inches)
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10-3/4
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • Mono block amplifier
  • 12" High-level speaker input harness
  • 4 Self-tapping screws (length=1")
  • 4 Rubber washers
  • Owner's Manual

Our Product Research Team

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 open the box, verify contents, 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.

Features
Controls
Inputs/Outputs
Specifications

Features

Crossover: The Clarion APX1300 amplifier includes a continuously variable 50-300 Hz low-pass crossover to filter out the highs from your subwoofer. The crossover has a 12dB/octave slope. For full range operation, you can set the X-Over mode to "Off" and the Frequency control has no effect.

Bass Boost: You can engage a narrow frequency band (High Q) bass boost circuit to compensate for a less than ideal subwoofer enclosure design. The added boost produces rich, full bass tones that are normally difficult to reproduce in a car audio environment. The Bass Boost circuit has a fixed frequency at 45Hz. You can select a gain of +6db or +12dB, or select "Off" if you don't want to boost the bass frequencies.

Protection Circuitry: The amplifier has a two-way protection circuitry. The amplifier will shut down when the operating temperature is too high and when the speaker outputs are shorted. A red LED on the left side of the amplifier glows when the amp has shut down and is in protection mode.

Speaker-level and Line-level Inputs: The amp provides both line-level and speaker-level inputs. If connecting a receiver with line outputs, you can use an RCA stereo patch cable. If the receiver does not have line outputs, you can splice the supplied high-level speaker input harness to the receiver's left and right speaker wires, then plug the harness into the amplifier.

Gold-plated Terminals: The APX1300 features gold-plated connections, including the screw terminals for power, ground, remote, and speakers, as well as the RCA line inputs. These gold-plated terminals prevent corrosion and provide excellent signal transfer.

CEA-2006 Compliant: CEA-2006 is a 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. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis.

Controls

Left Side:

  • Gain Control: a rotary control used to set the amplifier's input sensitivity to match the level of the incoming signal
  • Bass Boost control: a 3-way switch used to set the bass boost from 0 (center position) to +6dB (left) or +12dB (right) at 45 Hz
  • Crossover (X-OVER) Control:
    • Frequency: a rotary control that sets the crossover cut off frequency from 50 to 300Hz
    • Mode: a 2-way switch used to set the crossover to Low Pass Filter (LPF) or Off (Full Range)

Inputs/Outputs

Left Side:

  • Low Input: 1 pair of stereo RCA inputs
  • High Input: 5-pin plug-in clip for use with the supplied high-level speaker input harness

Right Side:

  • Speaker Terminals: 4 gold-plated screw terminals
    • Note: There are two +/- pairs of speaker terminals, but they are connected together internally and they provide mono output. If two 4-ohm speakers are connected, one to each set of terminals, the amplifier will see a 2-ohm load, because the terminals are internally connected, in parallel with each other
  • +12V (power): screw terminal (0.5" wide)
  • GND (ground): screw terminal (0.5" wide)
  • REM (remote turn-on): screw terminal (accepts up to 8-gauge wire)
  • Fuses: three 20-amp fuses (inserted)

Specifications

Specifications:

  • RMS power at 4 ohms: 300 watts x 1 (20-300Hz, at 0.1% THD)
  • RMS power at 2 ohms: 400 watts x 1 (20-300Hz, at 0.1% THD)
  • Max power output at 4 ohms: 400 watts x 1
  • Signal-to-Noise Ratio: ≥85 dB
  • Frequency Response: 20-30kHz Full Range
  • Input Impedance: 22k Ohm
  • Allowable Battery Voltage: 9.6-15.6V
 
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Clarion APX1300 Reviews

Average Customer Review:

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Filter by rating:
5 out of 5

Very Good Mono Amp

Written By Russ, Drumore, PA on Thursday, January 17, 2008
Crutchfield Customer Review (What's this?)
 
I am useing this amp to drive a single 10" sub in the trunk, and it delivers great sound.
I really like the fact that it has the ability to run at 4ohms or 2ohms and if I decide to go to 2, I'll pick up even more power. For the money, you can't go wrong with this one!
1 out of 1 people found this helpful
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5 out of 5

SO FAR SO GOOD

Written By IBN, NEWARK, NJ on Monday, December 31, 2007
Crutchfield Customer Review (What's this?)
 
SO FAR SO GOOD, BROUGHT THIS AMP TO POWER A 10 INCH KENWOOD SUB AND I HAVE NO COMPLAINTS...INSTALLED THE AMP AND SUB IN ABOUT AN HOUR AND HALF AND SHE POWERED RIGHT UP. DOES NOT RUN HOT THUS FAR....I HAVE NO COMPLAINTS GO CLARION
1 out of 1 people found this helpful
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5 out of 5

08xB thump

Written By wayne, Mount Laurel NJ on Monday, December 03, 2007
Crutchfield Customer Review (What's this?)
 
I use this amp to power a 10" Polk db in a sealed enclosure. Honestly, I wasn't expecting much from this amp because of the price, but I WAS WRONG!!!! Its a bit on the big side, but I've got it tucked away nice. I'm running it off of a Clarion DXZ775USB and its shaped with a Clarion MCD360. Clarion has always had a great name and now its matched with a great price. Well worth the money and quality that not many can hold a candle to!!
2 out of 3 people found this helpful
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5 out of 5

CHEVY MALIBU MAXX

Written By CHRIS, LEESBURG,GA on Monday, November 05, 2007
Crutchfield Customer Review (What's this?)
 
I BOUGHT THIS AMP FOR THE JL AUDIO W1V2-2 (2 12'' IN A SEALED BOX). WITH THE GAIN ALITTLE OVER HALFWAY , IT IS MORE POWER THAN I NEED.
6 out of 10 people found this helpful
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You'll need an amp wiring kit to install your new amplifier, as wiring is not included. See all categories & accessories

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For a more in-depth review and enhanced detailed information on the Clarion APX1300, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_020APX1300/Clarion-APX1300.html ).