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30-day refund/replacement
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Availability:
Only 6 left in stock, order soon!
Arrives
Thursday, Nov 5
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At a glance
- Condition
- New
- Style
- P400X4
- Product Packaging
- Standard Packaging
- Weight
- 3.15 kg
- Voltage
- 12 volts
- Mounting Type
- Car Mount
- Maximum Output Power
- 400 watts
- In the box
- P400X4
- Warranty
- 1-Year Manufacturer Warranty
Features 5
- 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
Description
The Punch P400X4 is a 4-channel amplifier producing 100 Watts into all four channels at 2-Ohm. The P400X4 is perfect for a 4-way full-range system or a 3-way system having a front stage with subwoofers on the rear channels. The stealth top mounted control panel not only provides a sleek finished look to the amp, but it also protects the vital controls. Our custom heat sink design uses high aluminum mass where it is needed most to maximize heat transfer from the output MOSFETS to the surrounding air, keeping the circuitry cool even under high power and output demand. C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is our patented circuit with in/out clip LEDs to help match a source to amp and optimize output Delivers more bass where you want it most by allowing up to 18dB of boost adjustment at 45Hz The RCA inputs of this amp can accept both Hi or Low level audio signals without the need of a signal converter Built by Fanatics…For Fanatics! Truly a line designed by fanatics for fanatics, our family of products are developed by the same people that use them in their everyday lives. It’s the Rockford Fosgate commitment of passion, power and performance built into everything we produce, connecting enthusiasts to their music and machine. Best of all, our entire line of products are designed and engineered in Tempe, AZ, USA!
Specs 16
| Item dimensions L x W x H | 11 x 7.8 x 2.4 inches |
|---|---|
| Voltage | 12 volts |
| Manufacturer | Rockford Fosgate |
| Mounting Type | Car Mount |
| Brand | Rockford Fosgate |
| Number of Channels | 4 |
| Maximum Output Power | 400 watts |
| Item Dimensions | 11 x 7.8 x 2.4 inches |
| Model | P400X4 |
| Brand Name | Rockford Fosgate |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Global Trade Identification Number | 72 |
| UPC | 780687342272 739197278595 796327931423 |
| Item Weight | 3.15 kg |
| Part Number | P400X4 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 5
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on October 8, 2015 by Sharkman
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.
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Reviewed in the United States on November 19, 2021 by Kevin
So far so good
Style: P400X4
Product Packaging: Standard Packaging
I just hooked up the following: Rockford Fosgate P3-2X12 1200 Watts Dual Rms Subwoofer Enclosure , Pioneer FHX-720BT 2-DIN Rockford Fosgate Punch P1694 6-Inch x 9-Inch Full Range Coaxial Speakers Rockford Fosgate P400X4 Punch 4-Channel Amplifier Rockford Fosgate P1000X1bd Punch 1-Channel Amplifier Rockford Fosgate P16-S 6-Inch Punch 2-Way Component Systems Everything sounds good. I'm in the breaking-in phase for the subs. Even with the AMP not up, the subs do HIT hard. The BASS has a clear DEEP sound, the MIDS/HIGHS are very clear and crisp sounding. The receiver was a bit confusing to operate, but the instructions were easy to understand, and i NEVER read instructions...EVER! But it was needed for the basic functions. This was a bit pricy, BUT I did do A LOT of shopping around and couldn't find a better price ANYWHERE! I actually saved $100's buying here.
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Reviewed in the United States on December 15, 2014 by vg
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.
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Reviewed in the United States on January 27, 2023 by Louie
Gr8 buy
Style: P400X4
Product Packaging: Standard Packaging
Gr8 buy
Reviewed in the United States on March 23, 2026 by Derek
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
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Reviewed in the United States on June 18, 2021 by Chad Earley
Such a great amplifier.
Style: P400X4
Product Packaging: Standard Packaging
indont know where to start really, it's just a fantastic amplifier, easy to use controls are stellar, it's under rated for sure. The clarity and depth of my speakers is so much better now, even on factory speakers it sounds so much better, truelly a great buy for anyone looking for a serious 4 channel amplifier that's easy to tune by yourself. The foot print is light and the power is big! Get one!
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Reviewed in the United States on July 31, 2015 by chris talbot
More than I had hoped for
Style: P400X4
Product Packaging: Standard Packaging
I bought a new car. Times are tough financially, so rather than going the route I had for years and installing a most jammin' sound system right off I tried to piecemeal it. Didn't work. Rather than enjoying my music I just got irritated listening to an inferior sound system. I had an approximately 10 year old JBL amp I had installed with a new pair of JL Audio C5 speakers. Still sucked. Then, I suppose to my good fortune, one of the channels on the JBL would work most of the time but not all of the time. There must have been a short (it was 10 years old +- after all) and the Rockford Fosgate was recommended by a local installer. Bought it at a great deal on Amazon and it made all the difference. I listen to all kinds of music and this system does them all justice. I highly recommend the Rockford Fosgate P400x4 amp. By the way. No knock on JBL. I've had good performance from them in the past. Hard to compare a new amp with one 10 years it's senior. As an older Dude, I can relate.
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Reviewed in the United States on July 11, 2013 by Mitchell W. Goyne