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Rockford Fosgate Punch P400X4

400W RMS Punch-Series 4-Channel Class AB Amplifier

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• 50 watts x 4 channel @ 4 ohms
• 100 watts x 4 channel @ 2 ohms
• Bridged: 200 watts x 2 channel @ 4 ohms
• Total RMS Power: 400 watts
• Class A/B 2 ohms Stable 4-Channel Amplifier

Learn more about the p400x4
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$339.99

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Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.

Rockford Fosgate Punch P400X4

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Priced separately $449 98

Promo Savings of $55 00

Total price:

$394 98

Product Highlights


• 50 watts x 4 channel @ 4 ohms
• 100 watts x 4 channel @ 2 ohms
• Bridged: 200 watts x 2 channel @ 4 ohms
• Total RMS Power: 400 watts
• Class A/B 2 ohms Stable 4-Channel Amplifier

Description


Rockford Fosgate brand icon

Authorized dealer



Feel the Punch!

The Punch P400X4 multi-channel amplifier is versatile to power any audio system configuration. In addition to 4-channel stereo mode, you can bridge both channels to create a high power 2-channel amp, or run stereo speakers on the front with subwoofers on the rear in 3-channel mode. The variable HP/LP crossover and built-in Punch EQ allows for precise tuning of Bass frequencies and the Pass-Thru RCA jacks provide flexibility as your system grows and keeping Y-adapters to a minimum.

Product Details:

  • Punch Series Class A/B 2 ohms Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohms: 50 watts x 4 channel
    • 2 ohms: 100 watts x 4 channel
    • Bridged: 200 watts x 2 channel @ 4 ohms
  • Total RMS power output: 400 watts
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs (Requires adapter like the Kicker KISL)
  • No of pre-amp outputs
  • Signal sensing remote turn-on
  • C.L.E.A.N. gain setup system
  • Dynamic Thermal Management and MEHSA MOSFET cooling systems
  • MOSFET power and output stages
  • CEA-2006 compliant
  • Input sensitivity: .15 - 12 volts
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): <1%
  • Signal to Noise Ratio: 85 dB
  • Variable high-pass filter: 50 - 250 Hz
  • Variable low-pass filter: 50 - 250 Hz
  • Variable Bass Boost: 0 - 18 dB
  • Fuse Rating: 60A
  • 4 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 11-1/8" L x 8-13/16" W x 2-7/16" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: P400X4

Rockford Fosgate Punch P400X4 owner’s manual

Product history:

Rockford Fosgate P400X4 thumbnail
(newest, current model)
Rockford Fosgate P4004 thumbnail
(previous model, replaced by Rockford Fosgate Punch P400X4)

Specifications & Details


Key Features
Amplifier Key Features
Bass Boost
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
RMS Power @ 2 ohms
100 watts x 4 channel
Bridged RMS Power
200 watts x 2 channel
Amplifier Specifications
Series
Punch Series
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
400 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
Frequency Response
20 - 20000 Hz
THD at Rated RMS Power
<1%
Speaker Level Inputs
Optional (Requires Accessory Adapter)
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
50 - 250 Hz
Low-Pass Crossover Frequency
50 - 250 Hz
Signal-to-Noise Ratio
85 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
No
Fuse Rating
60A x 1 
Total Fuse Rating
60
Sonic Certified Amplifier
Not Tested
Low-Level Input Sensitivity
.15 - 12 volts
High-Level Input Sensitivity
.15 - 12 volts
What is in the box?
Paperwork
User manual
Quick start guide
Power certification
WITB: Amplifiers
Amplifier
Mounting screws (4)
Allen wrench
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

P400X4

Weight:

10.00lbs

Internal SKU:

p400x4

Internal Product ID:

67768

Product and How-to Videos


  • 3Sixty3 Aftermarket Setup Wizard Tutorial
  • Rockford Fosgate Punch Car Amps | Powerful & Reliable Amplifiers
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews



5 star
93%
4 star
0%
3 star
0%
2 star
7%
1 star
0%



Durability
4.8
Value
4.8
Features
5
Design
4.9
Usability
5

Customer Reviews

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Great Buy!!

I purchased this amp to run 4 Pioneer TS-A6995R 6x9s in my 2002 Toyota Camry. I upgraded all my speakers from stock and purchased this amp & I've noticed a huge difference!! I love the settings this amp has to offer, sleek design, but most importantly, it's CEA-2006 Compliant. Normally rated at 400w RMS, my amp came rated at 568w RMS!! So at 4ohms, I'm pushing around 84.75w RMS per channel, which is how I have my speakers wired up. At 2ohms, it pushes around 142w RMS!! I would definitely recommend this amp to anyone looking to upgrade their stock speakers and need an amp that's gonna push!! Also, this amp was small enough for me to fit it on my backseat between my secondary battery and my other amp for my subwoofers.

By Kevin on February 15, 2015

41

found this helpful.

Worth Every Penny

This amp provides outstanding power. I had the previous version and really liked it. This newer version is even better. A must have for anyone who enjoys quality in the sound of their music.

By Mlo on March 1, 2015

37

found this helpful.

Awesome amp!

This amp is a great amp. It was a great buy and the built in clipping detector is awesome!. This amp I had on a set of rockford door speakers and the sound quality was amazing. The only thing is it doesn't have outputs. If your looking to get this I would recommend just getting the punch 600 4 channel so you got the extra power if you ever need it and it has outputs. If you don't need the outputs or the extra power this is still a great amp to buy and I recommend!

By Todd on October 31, 2014

35

found this helpful.

Good job Sonic Electronix

There is a reason Rockford Fosgate is still around and the products are CEA compliant.

By michael on October 9, 2014

35

found this helpful.

rockford p400×4

Product was as described fast service. Love the product sonic electronix

By los on March 31, 2014

33

found this helpful.

Rockford does not disappoint

Well priced clean power in a tight package
Wish my chick was this good lol

By tommy on December 28, 2016

25

found this helpful.

Disappointed

I am using this amp to power dynaudio 3in mid and sundown tweeters and unfortunately this amp just doesn't come close to producing the power to run these 4 speakers. For stock speakers or cheaper coaxial it would work great but not for solid components. The anti clip features are cool but unfortunately add others issues.

By Cm805 on July 23, 2021

24

found this helpful.

Nice mid/highs amp

I would recommend this amp. This is a nice amp to connect to your mids and highs. Provides great sound quality

By Anonymous on May 18, 2019 Checkmark Icon Verified purchase

22

found this helpful.

A high quality product and great price!

The Rockford line of car audio products have been a longtime favorite of mine. And thanks to Sonic, I can continue to enjoy high end items that last for a very long time. Thanks Sonic!

By Anonymous on August 11, 2018

22

found this helpful.

Great amps from Rockford

Rockford makes some excellent amps, I always recommend them and use them. I've had several of them and this one is great as well. Especially with the CLEAN setup procedure to prevent clipping. Great amp! buy it! Great price too

By ahl395 on July 16, 2016 Checkmark Icon Verified purchase

22

found this helpful.

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