Like New (Open Box) - Rockford Fosgate P400X4 Class AB 4 Channel Car Amplifier (Open Box, Like New)

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Product highlights

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

Learn more about the p400x4_obn

Description

Authorized dealer

Item Condition - Like New (Open Box):

This product works and looks like new. It may have been opened for a visual demo or product video. In some cases there may be signs of an attempt at installation like opened packaging or mounting screw holes used, but there is no real sign of use or wear. Includes all original parts, packaging and accessories (or suitable replacement)

P400X4

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. This unit is perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Simply drop a pair of component speakers on the front channels and subs on the rear and BOOM - you got "The PUNCH." With its flexible design, the P400X4 is an excellent amplifier choice for virtually any vehicle.

Rockford Fosgate Punch P400X4

400W RMS Class AB Punch Series 4 Channel Car Amplifier
Quantity: 1

Product Details:

Punch Series Class A/B 2 ohm Stable 4-Channel Amplifier
RMS Power Rating:

4 ohm: 50 watts x 4 channel
2 ohm: 100 watts x 4 channel
Bridged: 200 watts x 2 channel @ 4 ohm

Total RMS power output: 400 watts
Power, protect, thermal, input, and output clip LED visual indicators
Speaker-level (high-level) inputs (Requires adapter like the Kicker KISL)
12dB/octave Butterworth crossover
Features C.L.E.A.N. Set-up
High level input capable with Auto Turn-On circuit
On-board Punch EQ with +18dB boost @ 45Hz
Short circuit and over current protection
Cast aluminum heatsink
Muted turn on
Stealth top mounted control panel
CTA-2006 compliant
Input sensitivity: 150mV - 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
8 AWG gauge amplifier wiring kit is recommended for installation
Dimensions: 7.76" L x 11.03" W x 2.38" H
Authorized Internet Dealer
1-year Manufacturer's Warranty
MFR #: 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

Power Specifications - Full Range Channels

Peak Power @ 4 ohms

82 watts x 4 channel

Peak Power @ 2 ohms

137 watts x 4 channel

Bridged Peak/Max Power

266 watts x 2 channel

Amplifier Specifications

Series

Punch Series

Amplifier Class

A/B

Number of Channels

4-Channel

Total Peak Power Output

548 watts

Total RMS Power Output

400 watts

Maximum Input Gauge Size

8 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

Frequency Response

20 - 20000 Hz

THD at Rated RMS Power

Speaker Level Inputs

Optional (Requires Accessory Adapter)

Preamp Outputs

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

Fuse Rating

60A x 1

Total Fuse Rating

Strappable

Amp Bluetooth Connectivity

Hi-Res Certified

Low-Level Input Sensitivity

150mV - 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

Customer Ratings & Reviews

Rockford Fosgate Punch P400X4 (Open Box, Like New) thumbnail image

Overall rating distribution

5 star		95%
4 star		0%
3 star		0%
2 star		5%
1 star		0%

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Show only Verified Purchases

By feature average rating

Durability		4.8
Value		4.8
Features		5
Design		4.9
Usability		5

Customer Photos & Videos

Customer Reviews

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Great Buy!!

The following review is for P400X4, which is a part of the bundle you are viewing.

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

65 found this helpful

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Worth Every Penny

The following review is for P400X4, which is a part of the bundle you are viewing.

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

60 found this helpful

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Awesome amp!

The following review is for P400X4, which is a part of the bundle you are viewing.

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

59 found this helpful

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Good job Sonic Electronix

The following review is for P400X4, which is a part of the bundle you are viewing.

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

By michael on October 9, 2014

58 found this helpful

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rockford p400×4

The following review is for P400X4, which is a part of the bundle you are viewing.

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

By los on March 31, 2014

55 found this helpful

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Rockford does not disappoint

The following review is for P400X4, which is a part of the bundle you are viewing.

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

By tommy on December 28, 2016

47 found this helpful

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Disappointed

The following review is for P400X4, which is a part of the bundle you are viewing.

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

47 found this helpful

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Nice mid/highs amp

The following review is for P400X4, which is a part of the bundle you are viewing.

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

46 found this helpful

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Great amps from Rockford

The following review is for P400X4, which is a part of the bundle you are viewing.

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

45 found this helpful

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A high quality product and great price!

The following review is for P400X4, which is a part of the bundle you are viewing.

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

44 found this helpful

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