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Rockford Fosgate

Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier

    • Based on 514 reviews
Condition: New
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Availability: Only 8 left in stock, order soon!
Fulfilled by Audio Watt Store
Arrives Mar 10 – Mar 12
Order within 2 hours and 1 minute
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Style: P400X4


Product Packaging: Standard Packaging


Features

  • The Punch P400X4 is a 400 watt 4-channel amplifier (2.38 x 7.76 x 11.03) is perfect for a 4-way full-range system or a 3-way system having a front stage with subwoofers on the rear channels
  • Versatile multi-channel design is a perfect choice for virtually any vehicle (RMS Power Output: 50 Watts x 4 @ 4-Ohm OR 100 Watts x 4 @ 2-Ohm OR 200 Watts x 2 @ 4-Ohm Bridged)
  • RCA inputs can accept both Hi and Low level audio signals without the need of a signal converter
  • Featuring Class A/B topology, RCA pass-thru outputs, on-board Punch EQ with +18dB boost @ 45Hz, variable 12 dB/Oct Butterworth crossovers, and C.L.E.A.N. Set-up
  • Famous Rockford Fosgate build quality with a full 1-year warranty

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 5.8 x 12 x 17 inches; 6.94 Pounds


Item model number ‏ : ‎ P400X4


Batteries ‏ : ‎ 1 12V batteries required.


Date First Available ‏ : ‎ March 11, 2013


Manufacturer ‏ : ‎ Rockford Fosgate


Customer Reviews: 4.7 4.7 out of 5 stars 514 ratings


Item Weight: ‎6.93 pounds


Product Dimensions: ‎5.8 x 12 x 17 inches


Item model number: ‎P400X4


Batteries: ‎1 12V batteries required.


Is Discontinued By Manufacturer: ‎No


Wireless Remote: ‎No


Warranty: ‎1 year


Height (inches): ‎9 inches


Width (inches): ‎5 inches


Weight: ‎11.3 Pounds


Date First Available: March 11, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 10 – Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great ENTRY level amplifier for aftermarket radio
Style: P400X4 Product Packaging: Standard Packaging
This is a great amplifier and I've had mine since 2018. You can tune it to the way you want and to prevent clipping it has a nice led indicator. I have Rockford Fosgate everything except my subwoofer amplifier and my front door speakers as I found something better for my application. I am using this to drive two cheap speakers on my rear deck and two JL C1 speakers that can perform at a high volume. My only dislike about this unit is between my aftermarket head unit and this amplifier I've found it simply can't produce enough volume before it starts clipping. I would've been happier at the time I bought this if I had gone with a more powerful Amp but for current me this suits me most fine. For most applications this will provide you with enough volume and quality that you need, unless you're trying to show off and it gets a little distorted when turned up too loud. This is a great Amp and once you set it up you'll never touch it again. I would recomend mounting it down as I used an 8 Guage wiring kit(could have gone with 4 Guage but this unit doesn't really need it) and you definitely don't want that to get pulled out. Would recomend for casual listening but not show boating. ... show more
Reviewed in the United States on November 19, 2021 by Kevin
    • From piano and female vocals to stadium rock, the P400x4 is a no brainer.
Style: P400X4 Product Packaging: Standard Packaging
It's been quite a while since I bought an amp. The industry has really changed, and for the good. More features/perfornace for less cost. I've mostly owned Alpine and Precision Power amps, and I tried to buy another PPI, but they were out of stock, and I took a look at Rockford. The prices were pretty good at this time so I took a chance. The P400x4 is compact and heavy. I was surprised at the quality of construction, really nicely done. Things like that can tell you a lot about a company. Anyway, the feature set is also quite good, and being able to double the wattage from 4 to 2 ohms is seriously impressive. And the bottom line of course is the sound. This amp is really nice sounding. I'm running a set of Pioneer components, and the amp drives them effortlessly. They don't have much low bass, so I won't comment on that, but the balance and quality of vocals, instruments and highs is really good for the money. Imaging and soundstage, it's all there. I'll be buying another amp next year for the subs, and it'll be a Rockford Fosgate. Edit April 29/16 I changed up my system as I upgraded the wimpy stock 6x9 speakers on the back deck of my Altima with Pioneer TS-D6902R. I'm now running 2 channels of the amp to the rear speakers, and the front comps get the other 2 channels. Wow. This amp is making my jaw drop running all speakers full range. Lots of tight bass from the 6.5 and 6x9's. Clear, clean, effortless and more volume than I can handle. You really can't go wrong with these Punch amps. ... show more
Reviewed in the United States on October 8, 2015 by Sharkman
    • Rockin' the Fosgate
Style: P600X4 Product Packaging: Standard Packaging
I replaced an Alpine (100w x 4) class-D amp on my boat with this Rockford Fosgate (75w x 4) class A/B amp and it sounds much better . It's driving (4) Alpine 6 x 9 speakers, model 6912m. More than enough power. This amp gets just as loud as the 100w Alpine. I think both amps are plenty of power for the Infinity's. This amp was very easy to fine tune. Nice controls. Parametric Bass EQ let me pick the bass frequency I wanted to boost and then a separate gain control to adjust the bass level to just how I wanted it. Perfect Boom... but not too much to interfere with the rest of the music, but it's really there. Boom. All the harmonics that were missing with the class-D amp are back now. I listen to rock and occasionally rap/pop. This amp is perfect for that. Rock on Fosgate! ... show more
Reviewed in the United States on May 30, 2014 by K. Koffman
    • GREAT AMPLIFIER
Style: P600X4 Product Packaging: Standard Packaging
i had a kicker amplifier IS704, had it repaired 3 times over the years, got fed up, so i puchased this rockford amplifier because my old rockford amp still works up to this day and am satisfied with its performance through the years, (bought it together with the kicker IS704) its been 15 years. we needed a smaller wattage amp to our smaller car, this is a very good amplifier, used it to power my sony 2 din stereo, hooked it with four mb quart separates for my front and rears, sounds great...still got my old rockford fosgate punch amp to power my kicker subwoofer, no problems at all, great product, rockford fosgate amplifiers are of good quality.. will definitely use rockford fosgate...... ... show more
Reviewed in the United States on April 6, 2015 by kiongbee
    • ROCKFORD FOSGATE ROCKS MERCYFUL FATE IN KIA SOUL
Style: P600X4 Product Packaging: Standard Packaging
PUNCH p600.4 is a good amp, it produces a good amount of power and its clean sounding , high SQ. MY SPEC SHEET Claims 529 watts @ 4 ohms, thats right around 132 watts each channel@ 4 ohms. This amp has the c.l.e.a.n technology and it appears it does a good job cause the sound is clear at high volume, my ears give out before the clear music does. This amp is pushing 4 HERTZ door speakers and its loud, prolly hearing damage loud, but still clean and clear with no distortion. Of course i dont ride around with it playing full tilt but its fun to show off to stereo enthusiats. ... show more
Reviewed in the United States on June 24, 2016 by rinney
    • Good amp and great customer service
Style: P400X4 Product Packaging: Standard Packaging
What an awesome amp. I did not need it to push a sub so it was all I needed to make my Tundra loud! Had a problem with it and it quit working and the customer service took right care of me. Sent me a new one and it was an easy swap and now no more issues. Thanks for a great amp and a great buying experience ... show more
Reviewed in the United States on June 18, 2021 by Chad Earley
    • Clean clear highs
Style: P400X4 Product Packaging: Standard Packaging
Clean clear highs and punchy bass where it is needed. The amplifiers sound is very bright and clean with no distortion at all with the proper speakers. It barely breaks a sweat pushing 4 260 watt 6.5 inch Faital woofers. This is my 2nd Rockford Fosgate and still have the old mono block which is almost 20 years old. You can't go wrong with this beast. ... show more
Reviewed in the United States on January 27, 2023 by Louie

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