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Kicker 42PXA3004

Compact 4-channel amplifier — 50 watts RMS x 4

Item # 206PXA3004

Yes, ladies and gents, Kicker's 42PXA300.4 amp delivers up to 75 watts per channel, yet it's about the size of a brick.

Yes, ladies and gents, Kicker's 42PXA300.4 amp delivers up to 75 watts per channel, yet it's about the size of a brick.

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About the Kicker 42PXA3004

The wonder amp

Yes, ladies and gents, Kicker's 42PXA300.4 amp delivers up to 75 watts per channel, yet it's about the size of a brick. That's right, it's astonishingly small for an amp, which means you can get creative and stash it in nearly any nook or cranny in your car. And at that size, why not install it on your motorcycle, ATV or boat? Kicker designed this 4-channel amp for you open-air easy riders, with a weather-resistant enclosure, no-rust mounting hardware, a single Molex plug for all wiring, noise-killing circuitry, and plenty of power to combat wind and road noise.

The wonder amp

Yes, ladies and gents, Kicker's 42PXA300.4 amp delivers up to 75 watts per channel, yet it's about the size of a brick. That's right, it's astonishingly small for an amp, which means you can get creative and stash it in nearly any nook or cranny in your car. And at that size, why not install it on your motorcycle, ATV or boat? Kicker designed this 4-channel amp for you open-air easy riders, with a weather-resistant enclosure, no-rust mounting hardware, a single Molex plug for all wiring, noise-killing circuitry, and plenty of power to combat wind and road noise.

The power of four

This amp will drive four 2-ohm powersports speakers with 75 watts per channel, so you'll have plenty of power to enjoy clear, solid sound in the open air. A switchable high-pass filter allows you to remove low bass from your speakers so they'll play louder and cleaner.

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Product highlights:

  • 4-channel amplifier (selectable to work in any vehicle with a 12-volt charging system)
  • 50 watts RMS x 4 at 4 ohm (75 watts RMS x 4 at 2 ohm)
  • 150 watts RMS x 2 at 4 ohms bridged
  • frequency response: 10-20,000 Hz
  • switchable high-pass filter (60, 80, or 120 Hz at 24 dB/octave)
  • preamp and speaker-level inputs as well as two auto turn-on modes (DC offset or 12-volt trigger)
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • fuse rating: 40A x 1
  • 7-13/16"W x 1-9/16"H x 2-9/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # 42PXA3004

What's in the box:

  • Four-channel amplifier
  • 12" Input harness (8-pin Molex plug on one end and 4 female RCAs on other end)
  • 7" Speaker output/remote turn-on harness (10-pin Molex plug)
  • In-line MAXI fuse holder on 8-gauge wire
  • 40A MAXI blade fuse (installed)
  • Power and ground terminal adapter
  • Four 1" Self-tapping screws
  • Two 11-7/8" plastic wire ties
  • Owner's Manual (Eng/Span/Ger/Fren)

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Features

Overview: PXA series amplifiers are designed for motorized vehicles with small battery/charging systems; Kicker's new Direct Amp Technology uses the vehicle's charging system as its power supply, offering 90-percent efficiency. Little ventilation is required and with its small footprint, the PXA300.4 can be installed in motorcycle saddle bags or fairings, glove compartments, or other small spaces.

Power Output: The PXA300.4 is a 4-channel amplifier designed to output 50 watts RMS x 4 channels at 4Ω (<1% THD+N), 75 watts RMS x 4 channels at 2Ω (< 1% THD+N), and 150 watts RMS x 2 channels at 4Ω bridged.

Controls: The controls for the amplifier include rotary gain controls for Channels 1&2 and 3&4, and 7 DIP switches. The DIP switches, located on the bottom of the amp under a rubber cover, can select the following:

  • High Pass Crossover (Ch 1&2): 60Hz, 80Hz, 100 Hz, 120Hz or off, based on the configuration of two DIP switches
  • High Pass Crossover (Ch 3&4): 60Hz, 80Hz, 100 Hz, 120Hz or off, based on the configuration of two DIP switches
  • Fader: select On if running two sets of inputs, or Off if driving all channels with a single stereo input
  • Input Level: select high (speaker level) or low (line level)
  • Auto Turn-on: select 12V (amp turns on when +12 volts is applied to the remote wire in the harness) or DC (amp turns on when a 6 volt surge is detected from a speaker level source)

Input Signal: The PXA300.4 is capable of receiving either high- or low-level input signals, and you can select the input type on the end of the amp (DIP Switch #6). Two pairs of female RCA jacks are included on the supplied input harness. If you are using a speaker-level source, you can simply cut the RCA plugs off of the harness and splice the head unit's speaker wires onto the harness. If you prefer not cutting the RCA plugs off, use the optional Kicker KiSL speaker level to RCA adapter. The Input Sensitivity is 250mV-10.0V (High Level), while the Low Level Input Sensitivity is 125mV-5.0V.

Power Wiring: The amp comes with a power and ground terminal adapter that will accept up to 8-gauge wire. Power and ground wire (8-gauge is recommended) can be inserted into the adapter and tightened with a flat or Phillips head screwdriver. The adapter then plugs directly into the amplifier. An in-line fuse holder with a 40A MAXI fuse is included with the amp. No other power or ground wiring is included.

Speaker Output/Turn-on Lead: The speaker output wires and the amp turn-on lead are located on the same plug-in harness. Four pairs of 16-gauge wire are provided to connect two pairs of speakers. If you are bridging the amplifier, a wiring guide is provided in the Owner's Manual for connecting a single pair of speakers. The blue turn-on lead should be connected to the amp remote wire on the aftermarket head unit's harness. If you are connecting the amp to a head unit via the speaker-level input, it is not necessary to connect the turn-on lead, as the amplifier with turn itself on when the amp detects a 6V DC signal on the input. You will need to select the proper Auto Turn-On on DIP switch #7 on the bottom of the amp.

Differential Audio: The differential audio circuit reduces the likelihood of picking up any engine noise, and helps lower THD (Total Harmonic Distortion).

Weather Resistant: The PXA Amps are weather-resistant, using a conformal-coated circuit board for protection against the elements. They also include no-rust stainless-steel mounting hardware.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Advice from Rick at Crutchfield [ Kevin Lamont  Jun 08, 2018 ]
A
advisor recommended [ Charles  May 26, 2018 ]
A
It's what I wanted [ Kip  May 08, 2018 ]
A
recommended by a frend [ homer  May 07, 2018 ]
A
The size of this amp is perfect for installing on a pontoon boat when storage and mounting space is limited. [ Lawrence Ray  Apr 16, 2018 ]
A
compact, good price! [ justin  Feb 14, 2018 ]
A
Crutchfield always has the best prices to begin with, then they go an discount their already terrific prices even more, by offering open boxed items. With my 20 years experience purchasing from Crutchfield, I can confidently purchase an open box item, knowing that Crutchfield stands behind all of the products they sell, and will make it right if anything is wrong with the merchandise.I wish they had a retail store closer to me!! [ Brian Stahmer  Jan 29, 2018 ]
A
The customer service rep that helped me, Mike, recommended it for my situation [ Scott  Dec 16, 2017 ]
A
My existing 42PXA300.4 quit working. [ Ryan Allen  Oct 10, 2017 ]
A
price and size [ Daniel  Jun 06, 2017 ]
A
Size, brand, positive reviews, practicality with regards to the remote turn on mechanism, signal to noise ratio, construction, instruction manual was clear and done professionally. [ Pierre  Feb 08, 2017 ]
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4 questions already asked

Q
I looked through online instructions via Kicker but couldn't find a definite answer. 1) I have Infinity Kappa (2ohm stable)... is there any adjustments needed o get the 75w extra to the 2 door speakers in my MX5 versus just 50w? And 2) running 150w mono split to both speakers without concern for balance/fade, can it be done without concern for blowing the speakers?
[ John  Jul 12, 2019 ]
1 answer
A
Hi John, thanks for reaching out to us. You don't need to do anything special to get the 75 watts with those Kappas. The speakers dictate the impedance so connecting a 2 ohm speaker provides less resistance and automatically gets they 75 watts from the amp. The amp is only stable to 4 ohms when you bridge it. It would not be a good idea to try to connect it to the 2 ohm Kappas in bridged mode.
[ Cosmo  Jul 21, 2019 ]  Staff
Q
Are the holes for power and ground big enough to fit 4 gauge wire?
[ Clay  Sep 07, 2018 ]
2 answers
A
Unsure, will find out.,great amp.
[ JOHN R  Sep 12, 2018 ]
A
I installed this a few weeks ago and used 8 gauge power and ground. I remember there being plenty of extra room so I think 4 gauge would fit.
[ james  Sep 12, 2018 ]
Q
Is this amp like the Alpine KTP445?
[ Bob  Jul 09, 2016 ]
1 answer
A
It's similar, sure, but definitely not identical: http://www.crutchfield.com/Product/CompareTo.aspx?compareItems=01|500KTP445U&compareItems=01|206PXA3004&g=347050 The Kicker is more powerful (especially at 2 Ohms), features a higher signal to noise ratio, and a 2 year warranty. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5
[ Ryan  Jul 11, 2016 ]  Staff
Q
Will this amp power some type r 6.5 components and 6x9s?
[ Dean  Mar 17, 2016 ]
2 answers
A
Yes it will,installed in a 1996 bronco has 4 speakers total.sounds great to me
[ JAMAS  Mar 19, 2016 ]
A
Yes it will power them, but assuming your type R's are are 100 watt RMS and 4 ohm you will not get the full potential out of your speakers. This amp at 4 ohms only puts out 50 watts RMS per channel.
[ Nicholas  Mar 18, 2016 ]

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