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MTX JackHammer JH3004

4-channel car amplifier — 60 watts RMS x 4

Item # 236JH3004

Nothing's louder than a jack hammer, right? MTX proves that with their JackHammer Series JH3004 four-channel...

Nothing's louder than a jack hammer, right? MTX proves that with their JackHammer Series JH3004 four-channel...

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About the MTX JackHammer JH3004

LOUD

Nothing's louder than a jack hammer, right? MTX proves that with their JackHammer Series JH3004 four-channel amplifier, which can put out 60 watts RMS per channel to your front and rear speakers. You can also use this amplifier in bridged, 2-channel mode to power a pair of subs or high-performance speakers with 180 watts RMS each. Or, you could run front left and right speakers with 60 watts each, while powering a subwoofer with 180 watts.

LOUD

Nothing's louder than a jack hammer, right? MTX proves that with their JackHammer Series JH3004 four-channel amplifier, which can put out 60 watts RMS per channel to your front and rear speakers. You can also use this amplifier in bridged, 2-channel mode to power a pair of subs or high-performance speakers with 180 watts RMS each. Or, you could run front left and right speakers with 60 watts each, while powering a subwoofer with 180 watts.

Controls on top

All the tuning controls are located on the amp's top panel, so you'll have easy access to them after installation. Variable high- and low-pass filters optimize the sound to fit your particular speakers. Speaker-level inputs let you integrate the amp into a system with a factory radio.

MTX JH3004

MTX JH3004 input panel

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Product highlights:

  • 4-channel car amplifier
    • 60 watts RMS x 4 at 4 ohms
    • 90 watts RMS x 4 at 2 ohms
    • 180 watts RMS x 2 bridged (4-ohm stable in bridged mode)
  • Class AB amp technology (frequency response: 20-20,000 Hz)
  • variable high- and low-pass filter (40-250 Hz, 12 dB/octave)
  • preamp and speaker-level inputs
  • wiring, fuse, and hardware not included with amplifier
    • 8-gauge power and ground leads and a 50-amp fuse recommended
  • dimensions: 11-5/8"W x 2-5/8"H x 7-11/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # JH3004
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What's in the box:

  • 4-Channel amplifier
  • Four 5/8" Screws
  • 2mm Allen wrench
  • 4mm Allen wrench
  • Owner's manual (English/ Spanish/ Italian/ French)

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Features

Overview: The JH3004 4-channel amplifier is effectively two full range 2-channel amps built into one chassis, labeled Front and Rear. Each pair of channels is bridgeable, so the amp can be wired as 4-channel, 3-channel, or 2-channel.

CTA-2006 Compliant: CTA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output. The criteria for measuring amplifier power uses a DC input voltage of 14.4 volts and the RMS power output is measured over a frequency range of 20 Hz to 20 kHz (for full range amplifiers), with 1% or less Total Harmonic Distortion plus noise (THD+N). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CTA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples).

CTA-2006 Specifications:

  • Power Output: 60 watts RMS x 4 into 4Ω
  • Signal to Noise Ratio: 63 dBA (measured at 1 watt into 4Ω)

Other Specifications:

  • Power Output:
    • 2Ω: 90 watts RMS x 4 (≤1.0% THD+N)
    • Bridged (4Ω): 180 watts RMS x 2 (≤1.0% THD+N)

Controls:

  • Turn On: 2-position switch; select Remote (wired) or Audio (signal sensing)
  • Input Mode: choose 4-channel (dedicated front and rear inputs) or 2-channel (just a single stereo input)
  • Input Level: 2-position switch; select preamp-level or speaker-level
  • Gain: independent rotary gain controls for the front and rear channels; variable from 135mV to 10V
  • Crossovers: separate identical crossover controls for the front and rear channels
    • X-Over: 3-position switch; low pass, full range, or highpass
    • Frequency: rotary control; variable from 40 Hz to 250 Hz

Wire Connections: The JH3004 has set screw terminals for power, ground, turn-on (REM), and speaker outputs. The power and ground terminals will accept up to 4-gauge wire, and the turn-on and speaker outputs will accept up to 10-gauge wire. The set screws are loosened/tightened with one of the supplied Allen wrenches, 2mm or 4mm.

External Fuse: The amplifier does not include a built-in fuse, therefore an external fuse should be placed on the power wire, within 18" of the battery. We recommend an 8-gauge amplifier wiring kit and 50-amp external fuse be used when installing the amplifier.

Input Signal: The amp has two pair of RCA inputs that accept line-level and speaker-level inputs. When using a speaker-level input signal, an optional speaker wire to RCA adapter is recommended.

2Ω Stable: Each of the speaker outputs is capable of handling load impedances down to 2Ω (4Ω bridged).

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