---
product_id: 20191156
title: "Rockford Fosgate T400X4ad Power 400 Watt Class-ad 4-Channel Amplifier"
brand: "rockford fosgate"
price: "33306995₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/20191156-rockford-fosgate-t400x4ad-power-400-watt-class-ad-4-channel
store_origin: VN
region: Vietnam
---

# 400W Power 4 Channels Compact Design Rockford Fosgate T400X4ad Power 400 Watt Class-ad 4-Channel Amplifier

**Brand:** rockford fosgate
**Price:** 33306995₫
**Availability:** ✅ In Stock

## Summary

> 🎶 Amplify Your Ride with Power and Precision!

## Quick Answers

- **What is this?** Rockford Fosgate T400X4ad Power 400 Watt Class-ad 4-Channel Amplifier by rockford fosgate
- **How much does it cost?** 33306995₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/20191156-rockford-fosgate-t400x4ad-power-400-watt-class-ad-4-channel)

## 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

- • **Advanced Audio Control:** On-board Punch EQ for tailored sound enhancement.
- • **Rock-Solid Reliability:** Backed by a 2-year warranty for peace of mind.
- • **Unmatched Power Density:** Experience 400 Watts of power in a compact form factor.
- • **Versatile Compatibility:** Perfect for any vehicle type, from cars to motorcycles.
- • **Constant Power Technology:** Delivers consistent output across all impedance loads.

## Overview

The Rockford Fosgate T400X4ad is a high-performance 4-channel amplifier that delivers an impressive 400 Watts of power in an ultra-compact design. With proprietary Constant Power technology, it ensures optimal performance across various impedance loads, making it ideal for a wide range of vehicles. Enhanced audio control features and robust build quality make this amplifier a top choice for audio enthusiasts.

## Description

Rockford FosgateT400X4ad Power 400 Watt Class-ad 4-Channel Amplifier

## 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 |
|---------------|-------|
| Number of Channels | 4 |
| Package Type | box" or "installation kit |
| Output Power | 4E+2 Watts |
| Mounting Type | Boat Mount |
| Voltage | 12 Volts |
| Specification Met | Implied 12v Standard Voltage and Potential Compliance With Industry-specific Audio Standards |
| Material Type | Electronic component material and epoxy |
| Item Dimensions | 11 x 3 x 6 inches |

## Product Details

- **Item dimensions L x W x H:** 11 x 3 x 6 inches
- **Voltage:** 12 Volts
- **Manufacturer:** Rockford Fosgate
- **Mounting Type:** Boat Mount
- **Brand:** Rockford Fosgate

## Images

![Rockford Fosgate T400X4ad Power 400 Watt Class-ad 4-Channel Amplifier - Image 1](https://m.media-amazon.com/images/I/61M8GZUoafL.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rockford always over performs
*by C***. on November 20, 2021*

As every Rockford amp I've ever owned ( more than 20 ) this little giant puts out crazy numbers, has great sound quality and will last, the only knock I have are the connectors, they can be finicky and the RCA's are not of the best quality, which are easily replaced, other than than this little monster will amaze you, something that small using that little current could put out levels like it does.

### ⭐⭐⭐⭐⭐ High quality, very underrated!
*by M***O on August 12, 2018*

This amp is great! Started with just one, and now I have several of them. When these small Rockfords first came out, they were expensive, maybe $800. Once production ramped up, they dropped to half that.My amps are in a very high end system with ten (10) active channels - eight (8) of which come through two of these amps. Overall, the system is probably a $15,000 stereo, and this amp has all of the quality you’d need to fit right into a system of that caliber. The info lights on the amp let you set the gains to safe levels without using an external device, so installation is fairly easy.Don’t be fooled by the size, it’s a seriously high end amplifier. The reason it’s small isn’t because there’s less amplifier. It’s because the cooling is active, rather than passive (i.e. it has cooling fans). That means the heat doesn’t need to get spread over a large area. Instead, fans just blow heat away, meaning there’s no need for a large heat sink. Basically, the electronics are full scale, and the cooling solution allows a smaller size.The main reason to get this amp over other 4-channel amps is because of the Constant Power circuitry. Basically, it won’t be louder or quieter depending on which impedance load your speakers have. That means you can run 4-ohms to keep your amps cool without losing any noticeable sound volume. Great product!

### ⭐⭐⭐⭐⭐ Awesome amp.
*by R***A on July 2, 2019*

Best amp I have installed yet. Great sound and very powerful.

## 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

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-26*