--- product_id: 20191156 title: "Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier" brand: "rockford fosgate" price: "€ 862.75" currency: EUR in_stock: true category: "Rockford Fosgate" url: https://www.desertcart.com.cy/products/20191156-rockford-fosgate-power-t400x4ad-400-watt-4-channel-amplifier store_origin: CY region: Cyprus --- # 400W max power output Ultra-compact 1.6” x 4.3” x 8.3” size Constant Power across 2Ω & 4Ω loads Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier **Brand:** rockford fosgate **Price:** € 862.75 **Availability:** ✅ In Stock ## Summary > ⚡ Compact Power, Massive Impact – Own the Soundstage! ## Quick Answers - **What is this?** Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier by rockford fosgate - **How much does it cost?** € 862.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/20191156-rockford-fosgate-power-t400x4ad-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 - • **Space-Savvy Design:** Ultra-compact footprint fits seamlessly into cars, trucks, motorcycles, and UTVs without sacrificing power. - • **Rockford Reliability:** Built tough with premium materials and backed by a 2-year parts and labor warranty for peace of mind. - • **Powerhouse Performance:** Delivers a robust 400 Watts with industry-leading Constant Power tech for consistent output at any impedance. - • **Smart & Safe Operation:** High-level auto turn-on and clean clip detection protect your system while maximizing performance. - • **Precision Audio Control:** On-board Punch EQ with +18dB boost at 45Hz and Butterworth crossover for crystal-clear, punchy sound. ## Overview The Rockford Fosgate Power T400X4ad is a 400 Watt 4-channel Class-AD amplifier featuring proprietary Constant Power technology that delivers up to 25% more power across all impedance loads. Its ultra-compact design (1.6” x 4.3” x 8.3”) makes it ideal for tight spaces in cars, motorcycles, and UTVs. Equipped with Punch EQ and Butterworth crossover, it ensures precise, punchy audio. With smart auto turn-on, clip detection, and Rockford’s legendary build quality, this amp is engineered for powerful, reliable performance backed by a 2-year warranty. ## Description Buy Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier | Class-AD with Constant Power: Multichannel Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Our ultra-compact (1.6” x 4.3” x 8.3”) Power T400X4ad 4-channel amplifier produces more power per square inch than any other model we make with 400 Watts of POWER - Proprietary Constant Power amps are the most powerful on the market, delivering up to 25% more power across all impedance loads (100 Watts x 4 @ 4-Ohm or 100 Watts x 4 @ 2-Ohm or 200 Watts x 2 @ 4-Ohm Bridged) - Proprietary Class-AD technology, featuring Constant Power to produce the same output at both 4-Ohm and 2-Ohm, making it perfect for hybrid, electric, small cars, trucks, motorcycles, and side-by-side UTVs - High-level auto turn-on, CLEAN circuit input/output clip detection, On-board Punch EQ with +18dB boost @ 45Hz and 12dB/octave Butterworth crossover make T400X4ad an impressive POWER house - Famous Rockford Fosgate build quality ensures that the T400X4ad will handle everything you throw at it! Full 2-year parts and labor warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LMNLGDY | | Best Sellers Rank | #70,941 in Electronics ( See Top 100 in Electronics ) #160 in Car Multichannel Amplifiers | | Brand | Rockford Fosgate | | Brand Name | Rockford Fosgate | | Customer Reviews | 4.7 out of 5 stars 118 Reviews | | Global Trade Identification Number | 00780687342388 | | Included Components | A Amplifier With Standard Accessories | | Item Dimensions | 11 x 3 x 6 inches | | Item Highlight | Class-AD with Constant Power | | Item Weight | 3 pounds | | Item dimensions L x W x H | 11 x 3 x 6 inches | | Manufacturer | Rockford Fosgate | | Material Type | Electronic component material and epoxy | | Maximum Output Power | 400 watts | | Maximum Supply Voltage | 12 volts_of_direct_current | | Model | T400X4ad | | Mounting Type | Boat Mount | | Number of Channels | 4 | | Number of Items | 1 | | Number of Packs | 1 | | Output Power | 400 watts | | Package Type Name | box" or "installation kit | | Part Number | T400X4ad | | Specification Met | Implied 12v Standard Voltage and Potential Compliance With Industry-specific Audio Standards | | UPC | 780687342388 | | Unit Count | 1 Count | | Voltage | 12 volts | | Warranty Description | 1-Year Manufacturer Warranty | ## Product Details - **Item dimensions L x W x H:** 11 x 3 x 6 inches - **Manufacturer:** Rockford Fosgate - **Maximum Supply Voltage:** 12 volts_of_direct_current - **Mounting Type:** Boat Mount - **Voltage:** 12 volts ## Images ![Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier - Image 1](https://m.media-amazon.com/images/I/61M8GZUoafL.jpg) ![Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier - Image 2](https://m.media-amazon.com/images/I/61P7iYL7VxL.jpg) ![Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier - Image 3](https://m.media-amazon.com/images/I/51blsFulMXL.jpg) ![Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier - Image 4](https://m.media-amazon.com/images/I/6160NiCwC+L.jpg) ![Rockford Fosgate Power T400X4ad 400 Watt 4-Channel Amplifier - Image 5](https://m.media-amazon.com/images/I/51CkqPPe3QL.jpg) ## Questions & Answers **Q: Theses are just micro amps right? Can be used in car not just bikes** A: That is correct. You can use them for any application you would use a normal amp for. Because of their size they are typically used in settings that have very limited space. **Q: Does this amp come with any wiring? Looks like they changed the rca plug to something else on the amp** A: There is a molex that plugs into the amp that has the RCA's on it., I can offer you a very aggressive price on this unit and all needed install items. Simply text me at 512-750-8726 for a quote. Thanks!! **Q: is there a mounting plate for a 2012 victory cross country** A: Unfortunately, no. You would need to fabricate your own mounting plate. Thanks for your interest! **Q: Is this better in sound quality than Rockford's Prime line up ?** A: Yes! Absolutely I own both and sound is way better with the power series’s ## Frequently Bought Together - Rockford Fosgate T400X4ad Power 400 Watt Class-ad 4-Channel Amplifier - Rockford Fosgate T1650 Power 6.5" 2-Way Coaxial Full Range Speakers - Black (Pair) - Rockford Fosgate R2-500X4 Prime 500-Watt 4-Channel Amplifier --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.cy/products/20191156-rockford-fosgate-power-t400x4ad-400-watt-4-channel-amplifier](https://www.desertcart.com.cy/products/20191156-rockford-fosgate-power-t400x4ad-400-watt-4-channel-amplifier) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-09-15*