---
product_id: 48410625
title: "T400x4 AD 4-channel amplifier"
brand: "rockford fosgate"
price: "€ 1340.71"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/48410625-t400x4-ad-4-channel-amplifier
store_origin: FI
region: Finland
---

# 4 x 100W RMS power output Compact 108x41x211 mm size Adjustable bass & treble boost T400x4 AD 4-channel amplifier

**Brand:** rockford fosgate
**Price:** € 1340.71
**Availability:** ✅ In Stock

## Summary

> 🎵 Unleash your ride’s true sound potential with Rockford Fosgate power!

## Quick Answers

- **What is this?** T400x4 AD 4-channel amplifier by rockford fosgate
- **How much does it cost?** € 1340.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/48410625-t400x4-ad-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

- • **Customizable Audio:** 50-250 Hz high/low pass filters with 0-18 dB bass & 0-14 dB treble boost
- • **Smart Connectivity:** High-level inputs with Auto Turn On for effortless integration
- • **Space-Savvy Design:** Sleek micro dimensions fit seamlessly in any vehicle setup
- • **Efficiency Meets Power:** Up to 75% efficiency ensures robust sound without draining your battery
- • **Powerhouse Performance:** Delivers 4 x 100W RMS into 4/2 ohms for crystal-clear sound

## Overview

The Rockford Fosgate T400x4 AD is a compact yet powerful 4-channel amplifier delivering 4 x 100W RMS with flexible tuning options including bass and treble boost. Designed for seamless vehicle integration, it features high/low pass filters, high-level inputs with Auto Turn On, and operates at 75% efficiency, making it the perfect upgrade for audiophiles seeking premium sound clarity on the go.

## Description

T400x4 AD 4-channel amplifier

## Features

- Dimensions: 108x41x211 mm

## 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:** 27.9 x 7.6 x 15.2 centimetres
- **Voltage:** 12 Volts
- **Manufacturer:** Rockford Fosgate
- **Maximum supply voltage:** 12 Volts (DC)
- **Mounting type:** Surface Mount

## Images

![T400x4 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

## 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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**Shop now:** [https://www.desertcart.fi/products/48410625-t400x4-ad-4-channel-amplifier](https://www.desertcart.fi/products/48410625-t400x4-ad-4-channel-amplifier)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-12*