---
product_id: 136668713
title: "IMPULSE4.320 Ultra Compact 4/3/2-Channel Amplifier"
brand: "focal"
price: "£619.06"
currency: GBP
in_stock: true
reviews_count: 6
category: "Focal"
url: https://www.desertcart.co.uk/products/136668713-impulse4-320-ultra-compact-4-3-2-channel-amplifier
store_origin: GB
region: United Kingdom
---

# 4 x 80W max power @ 2Ω Ultra-compact 175x66.5x47mm ISO compatible plug & play IMPULSE4.320 Ultra Compact 4/3/2-Channel Amplifier

**Brand:** focal
**Price:** £619.06
**Availability:** ✅ In Stock

## Summary

> 🎶 Compact Power, Big Impact – Amplify Your Drive!

## Quick Answers

- **What is this?** IMPULSE4.320 Ultra Compact 4/3/2-Channel Amplifier by focal
- **How much does it cost?** £619.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/136668713-impulse4-320-ultra-compact-4-3-2-channel-amplifier)

## Best For

- focal enthusiasts

## Why This Product

- Trusted focal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Optional ISO connector enables quick, hassle-free installation—get your sound system up and running fast.
- • **Powerhouse in a Pocket:** Delivers up to 160W bridged power for crystal-clear sound that dominates your drive.
- • **Universal Compatibility:** Works flawlessly with all OEM and aftermarket head units—no compromises.
- • **Precision Audio Performance:** Low distortion (0.02% THD) and wide bandwidth (10Hz-20kHz) ensure every note hits perfectly.
- • **Seamless Dashboard Integration:** Ultra-compact design fits discreetly anywhere, preserving your car’s sleek interior.

## Overview

The Focal IMPULSE4.320 is a premium ultra-compact 4/3/2-channel Class D amplifier delivering up to 160W bridged power with exceptional audio clarity and minimal distortion. Designed for seamless integration, it supports all head units and offers optional ISO plug & play compatibility, making it the perfect upgrade for millennial professionals seeking powerful, discreet, and versatile in-car sound enhancement.

## Description

D Class Ultra-Compact Amplifier 4/3/2 Channel Mode Advantages: Ultra-compact – Easy to install Compatible with all head units (OEM and after-market) Automatic start-up with your original head unit ISO compatible via cable accessories sold separately (IY-AC Impulse 4.320) Specifications: CEA Power (4 Ohms) 4 x 55W rms Power max (2 Ohms) 4 x 80W rms Power bridged (4 Ohms) 2 x 160W rms Bandwidth 10Hz / 20KHz Minimum THD 0.02% SNR 80 dBA Weight 1.2 lbs Dimensions 6-7/8 x 2-5/8 x 1-7/8 ” (175 x 66.5 x 47mm)

Review: It is FOCAL quality! Nevertheless DSP features would be nice to add! - The amp was installed matched with the front and rear VW IS 180 and IC 165 in a TIGUAN, it works just flawless. Nevertheless the price I consider too high for what offers. There is other options in the market for $100 less but with DSP features, like Kicker. I purchased as it was at discount from $399 to $270, otherwise I would not be purchased. The high input is very sensitive so if using it keep gains like in a 1/4. I would suggest to use line level inputs as you can get a better control. The size is just perfect, it fits at any space so it can be hidden if you want.
Review: Focal Verstärker plug and play - Kaufempfehlung. - War selten so zufrieden mit einem Kauf. Er verstärkt die Angelegenheit, verschafft dem NewBeetle zusammen mit den Focal-2-Wege-Lautsprechern rundum einen guten Klang. Sicher nicht High-End, aber alles klingt sehr gut, der Schalldruck ist absolut asureichen, um den Schwatzkopp auf dem Beifahrersitz nicht mehr zu hören - alles so, wie es sein soll. 4 Lautsprecher - ca. 400-450 Euro, plus Kabelbaum, ca. 100 Euro, plus diesen Verstärker, ca 220-230 Euro, und schon hat man wirklich guten Klang im Fahrzeug. Nach 20 Jahren und mit einem Billigradio, kaputten Lautsprechern war es eine Qual. So ist das halt, wenn man ein gebrauchtes Auto kauft. Dieses Set mit dem hier gezeigten Verstärker war einer der besten Käufe in meinem Leben.

## Features

- Far more powerful than a head unit
- Easy integration within the dashboard
- Compatible with all head units
- Extremely versatile
- Optional ISO connector for semi “Plug&Play” set-ups

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EZYWW5M |
| Best Sellers Rank | #395,691 in Electronics ( See Top 100 in Electronics ) #899 in Car Multichannel Amplifiers |
| Brand | Focal |
| Brand Name | Focal |
| Customer Reviews | 4.5 out of 5 stars 105 Reviews |
| Included Components | IMPULSE4.320 |
| Item Dimensions | 9.75 x 15.25 x 17 inches |
| Item Weight | 454 g |
| Item dimensions L x W x H | 9.75 x 15.25 x 17 inches |
| Manufacturer | Focal |
| Material Type | Plastic, Metal |
| Maximum Output Power | 160 watts |
| Model | IMPULSE4.320 |
| Mounting Type | Surface Mount |
| Number of Channels | 4 |
| Number of Items | 1 |
| Package Type Name | box |
| Part Number | IMPULSE4.320 |
| Specification Met | Iso,oem |
| Unit Count | 1 Count |
| Warranty Description | 2-Year Manufacturer Warranty |

## Product Details

- **Brand:** Focal
- **Manufacturer:** Focal
- **Mounting Type:** Surface Mount
- **Number of Channels:** 4
- **Output Power:** 55 Watts

## Images

![IMPULSE4.320 Ultra Compact 4/3/2-Channel Amplifier - Image 1](https://m.media-amazon.com/images/I/51sBpqWTu0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It is FOCAL quality! Nevertheless DSP features would be nice to add!
*by C***N on January 9, 2025*

The amp was installed matched with the front and rear VW IS 180 and IC 165 in a TIGUAN, it works just flawless. Nevertheless the price I consider too high for what offers. There is other options in the market for $100 less but with DSP features, like Kicker. I purchased as it was at discount from $399 to $270, otherwise I would not be purchased. The high input is very sensitive so if using it keep gains like in a 1/4. I would suggest to use line level inputs as you can get a better control. The size is just perfect, it fits at any space so it can be hidden if you want.

### ⭐⭐⭐⭐⭐ Focal Verstärker plug and play - Kaufempfehlung.
*by W***R on March 31, 2026*

War selten so zufrieden mit einem Kauf. Er verstärkt die Angelegenheit, verschafft dem NewBeetle zusammen mit den Focal-2-Wege-Lautsprechern rundum einen guten Klang. Sicher nicht High-End, aber alles klingt sehr gut, der Schalldruck ist absolut asureichen, um den Schwatzkopp auf dem Beifahrersitz nicht mehr zu hören - alles so, wie es sein soll. 4 Lautsprecher - ca. 400-450 Euro, plus Kabelbaum, ca. 100 Euro, plus diesen Verstärker, ca 220-230 Euro, und schon hat man wirklich guten Klang im Fahrzeug. Nach 20 Jahren und mit einem Billigradio, kaputten Lautsprechern war es eine Qual. So ist das halt, wenn man ein gebrauchtes Auto kauft. Dieses Set mit dem hier gezeigten Verstärker war einer der besten Käufe in meinem Leben.

### ⭐⭐⭐⭐⭐ Super ampli
*by G***N on May 9, 2025*

Petit ampli facile à dissimuler, très efficace en terme de son. Installation dans toyota corollaire touring sport 2020.👍

## Frequently Bought Together

- Focal IMPULSE4.320 Ultra Compact 4/3/2-Channel Amplifier
- RECOIL RCI23 100% Oxygen Free Copper 3ft 2-Channel RCA Audio Cable, Twisted Pair with Noise Reduction
- Skar Audio 8 Gauge CCA Complete Amplifier Installation Wiring Kit, SKAR8MANL-CCA

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-08-29*