--- product_id: 1164824 title: "Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier" brand: "rockford fosgate" price: "€ 838.85" currency: EUR in_stock: true category: "Rockford Fosgate" url: https://www.desertcart.hr/products/1164824-rockford-fosgate-p400x4-punch-400-watt-4-channel-amplifier store_origin: HR region: Croatia --- # 400W total power output 4-channel versatile design On-board +18dB Punch EQ boost Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier **Brand:** rockford fosgate **Price:** € 838.85 **Availability:** βœ… In Stock ## Summary > 🎡 Elevate your drive with punchy power and precision sound! ## Quick Answers - **What is this?** Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier by rockford fosgate - **How much does it cost?** € 838.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/1164824-rockford-fosgate-p400x4-punch-400-watt-4-channel-amplifier) ## Best For - rockford fosgate enthusiasts ## Why This Product - Trusted rockford fosgate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Plug & Play RCA Inputs:** Accepts both high and low-level signals without extra converters, simplifying your installation. - β€’ **Tailored Sound Control:** Features variable 12 dB/Oct Butterworth crossovers and a +18dB boost at 45Hz for deep, punchy bass. - β€’ **Rockford Fosgate Reliability:** Built with legendary quality and backed by a 1-year warranty to keep your system running strong. - β€’ **Power Your Ride with Precision:** Delivers up to 100W per channel at 2-Ohm for crystal-clear sound across all four channels. - β€’ **Ultimate Multi-Channel Flexibility:** Supports 4-way full-range or 3-way with subwoofer setups, adapting perfectly to your vehicle’s audio needs. ## Overview The Rockford Fosgate P400X4 is a compact yet powerful 400-watt 4-channel amplifier designed for versatile vehicle audio setups. It delivers up to 100 watts per channel at 2-Ohm, supports both high and low-level RCA inputs, and includes advanced sound-shaping features like a +18dB Punch EQ boost and adjustable Butterworth crossovers. Engineered with Class A/B topology and backed by a 1-year warranty, it’s the perfect upgrade for audiophiles seeking crisp, customizable sound on the road. ## Description desertcart.com: Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier : Electronics ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BF6HZ6K | | Best Sellers Rank | #49,752 in Electronics ( See Top 100 in Electronics ) #92 in Car Multichannel Amplifiers | | Brand Name | Rockford Fosgate | | Customer Reviews | 4.6 4.6 out of 5 stars (280) | | Global Trade Identification Number | 00780687342272 | | Included Components | P400X4 | | Item Dimensions | 11 x 7.8 x 2.4 inches | | Item Weight | 3.15 Kilograms | | Manufacturer | Rockford Fosgate | | Maximum Output Power | 100 watts per channel | | Model | P400X4 | | Mounting Type | Car Mount | | Number of Channels | 4 | | Output Power | 400 Watts | | Part Number | P400X4 | | UPC | 780687342272 739197278595 796327931423 | | Unit Count | 1.0 Count | | Voltage | 12 Volts | | Warranty Description | 1-Year Manufacturer Warranty | ## Product Details - **Brand:** Rockford Fosgate - **Item dimensions L x W x H:** 11 x 7.8 x 2.4 inches - **Manufacturer:** Rockford Fosgate - **Mounting Type:** Car Mount - **Voltage:** 12 Volts ## Images ![Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier - Image 1](https://m.media-amazon.com/images/I/71jkz3vPWDL.jpg) ## Available Options This product comes in different **Customer Package Type, Style** options. ## Questions & Answers **Q: Will this amp push two Rocksford fosgate 4 ohm 12" subs** A: For 2 12" R2D4's I'd suggest going for the R1200.1D. Should be more than enough to power them. I'm using it for 2 10" R2D2's and a single 12" R2D4 all wired up together at 1 ohm. **Q: With the P600x4 . I want to power my 6.5 components and a set of 6x9's all of which are about 100 watts RMS each. What is the RMS @ 4 ohms on amp** A: I would look at other amps. One of these doesn't have enough power for my doors. Their 2 channel does a decent job on 4 6x9. Their anticlip feature leads to amp cutting in and out annoying feature. **Q: Is this amp 2ohm stable?** A: Yes sir.. it is 2ohm stable. I'm running a single 10" 4ohm DVC bridged to the rear channel with (2 0hm) 6x9s running off the front channel in the rear deck and it sounds great. As long as you dial it in as per the C.L.E.A.N. instructions you'll be really happy with this RF amp. **Q: What is the true rms power on the 600x4? I know these amps are under rated** A: The short answer is above 600 rms total. Every amp comes with a birth sheet that shows the results of a Amp dyno test performed on the amp. Mine was 191 rms per channel @ 2 ohms which translates to 764 rms total. Every amp sold by Rockford is underrated so expect to see a larger rms rating than advertised. I've seen birth sheets for this specific model ranging from 750 rms up to the high 900 rms range. ## Frequently Bought Together - Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier - Rockford RFK4X 4 AWG Complete Amplifier Install Kit - Rockford Fosgate P500X1BD Punch 500 Watt Class-bd Mono Amplifier --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/1164824-rockford-fosgate-p400x4-punch-400-watt-4-channel-amplifier](https://www.desertcart.hr/products/1164824-rockford-fosgate-p400x4-punch-400-watt-4-channel-amplifier) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-26*