---
product_id: 223932021
title: "Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier"
brand: "skar audio"
price: "HK$5649"
currency: HKD
in_stock: false
reviews_count: 5
category: "Skar Audio"
url: https://www.desertcart.hk/products/223932021-skar-audio-rp-75-4ab-500-watt-full-range-class
store_origin: HK
region: Hong Kong
---

# 500W max power output Fully adjustable gain & EQ 4-way protection circuitry Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier

**Brand:** skar audio
**Price:** HK$5649
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Unleash Your Car’s True Sound Potential — Don’t Just Drive, Dominate!

## Quick Answers

- **What is this?** Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier by skar audio
- **How much does it cost?** HK$5649 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/223932021-skar-audio-rp-75-4ab-500-watt-full-range-class)

## Best For

- skar audio enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Integration:** Supports 2Ω and 4Ω speaker loads with stable RMS power output for versatile system setups.
- • **Efficient & Compact Design:** Premium internal components in a sleek aluminum chassis optimize power flow and heat dissipation.
- • **Power Your Ride Loud & Clear:** 500 Watts of MOSFET-driven Class A/B power delivers crisp, room-filling sound across 4 channels.
- • **Tailor Your Sound Like a Pro:** User-adjustable gain, LPF, HPF, and bass EQ let you customize every note to perfection.
- • **Built to Last, Built to Protect:** Advanced 4-way protection circuitry ensures reliable performance and safeguards your investment.

## Overview

The Skar Audio RP-75.4AB is a 4-channel Class A/B car amplifier delivering up to 500 Watts of MOSFET-powered RMS output. With adjustable gain, crossover filters, and bass EQ, it offers precise sound customization. Its robust 4-way protection circuitry and premium build ensure reliable, high-fidelity performance for aftermarket car audio systems.

## Description

The Skar Audio RP-75.4AB is a powerful, efficient, and highly reliable four channel class a/b full-range car amplifier. Capable of powering an entire aftermarket upgraded speaker system in a vehicle, it packs the power that will allow you to get loud and let your speakers come alive. Featuring a high speed MOSFET power supply, premium grade internal components, as well as 4-way protection circuitry, the amplifier will operate at the highest levels of performance for hours on end safely. With a depth of adjustable user controls such as the gain, lpf, hpf, crossover, and bass eq, this amplifier is extremely versatile and can be used in so many applications. These advanced user controls will allow you to dial your sound in exactly as you want for perfect clarity, whether running active components or speakers with in-line crossover networks. The class A/B circuitry design of this model allows it to amplify your audio signal with maximum clarity and sound excellence, all while being extremely efficient. Features 8 gauge power and ground input terminal connections for maximum current flow.

Review: Best amp i have use and give you a lot of powerful bass
Review: Excelente

## Features

- 500-Watt MOSFET 4-Channel Class A/B Power Car Amplifier
- RMS Power at 2 Ohms: 125 Watts x 4 Channels
- RMS Power at 4 Ohms: 75 Watts x 4 Channel
- User Adjustable Controls: Gain, Variable LPF, HPF, Bass EQ Switch (0, +6, +12 dB)
- 4 Way Protection Circuitry | Frequency Response: 20 Hz - 20,000 Hz
- Signal to Noise Ratio: 105 dB

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TKF53LC |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #1,034,222 in Electronics ( See Top 100 in Electronics ) #100 in Car Multichannel Amplifiers |
| Brand | Skar Audio |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,787) |
| Date First Available | 19 April 2015 |
| Does it contain liquid? | No |
| Generic Name | Car Amplifier |
| Global Trade Identification Number | 00760999042718 |
| Item Dimensions LxWxH | 49.5 x 17.8 x 7.6 Centimeters |
| Item Weight | 3 kg 360 g |
| Item dimensions L x W x H | 49.5 x 17.8 x 7.6 Centimeters |
| Item model number | RP-75.4AB |
| Manufacturer | Skar Audio |
| Material | Aluminum, steel, plastic |
| Maximum Supply Voltage | 12 Volts (DC) |
| Model | RP-75.4AB |
| Model Name | RP-75.4AB |
| Mounting Type | Surface Mount |
| Number of Channels | 4 |
| Number of items | 1 |
| Output Power | 500 Watts |
| Product Dimensions | 49.53 x 17.78 x 7.62 cm; 3.36 kg |
| Specification Met | FCC |
| UPC | 760999042718 |

## Product Details

- **Brand:** Skar Audio
- **Item dimensions L x W x H:** 49.5 x 17.8 x 7.6 Centimeters
- **Manufacturer:** Skar Audio
- **Maximum Supply Voltage:** 12 Volts (DC)
- **Mounting Type:** Surface Mount

## Images

![Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier - Image 1](https://m.media-amazon.com/images/I/41D2QO5zUPL.jpg)
![Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier - Image 2](https://m.media-amazon.com/images/I/41Gi79nA3JL.jpg)
![Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier - Image 3](https://m.media-amazon.com/images/I/41UKCRNJacL.jpg)
![Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier - Image 4](https://m.media-amazon.com/images/I/41q5+6-GRXL.jpg)
![Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier - Image 5](https://m.media-amazon.com/images/I/51T5HZB6PuL.jpg)

## Questions & Answers

**Q: Can i run 8 speakees on this?**
A: I currently run six on just 2 channels. Pay attention to the ohm load and properly set gains with a multimeter prior to playing.

**Q: What size fuse this amplifier carry**
A: For every 100 watts of RMS power, you will want a 10-15A fuse. So if you have a 1,000RMS watt amp, I would run 125A-150A fuse.

**Q: Would this amp be appropriate for skar audio vxi65 360-watt 6.5" 2-way component speaker system?**
A: This is a class A/B 4 channel amp. It works great in your application.

**Q: Will this amp power 4 skar audio sk 6x9s good i got 2 skar audio vvx 15s on a skar rp 2000.1d and i don’t want the bass to drown out the voice**
A: Yes, this amp is shouldn't be your concern.  I'd be worried about those 6x9s handling this amp. I say that because though I really like Skar I've had no luck with their 6x9s. Good news is I haven't owned these sk 6x9s so you may be in luck. This amp is powering a pair of audiopipe CSL-6904 6x9 & a pair of Infinity KAPPA-93iX 6x9s in my car with a Skar EVL-15 pushed at 1 ohm with an audiopipe 1500w monoblock & fixing to strap it. The clarity of the 6x9s are wonderful at any level.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***Y on 5 October 2025*

Best amp i have use and give you a lot of powerful bass

### ⭐⭐⭐⭐⭐ Review
*by S***% on 12 October 2023*

Excelente

### ⭐⭐⭐⭐⭐ Review
*by ト***ー on 23 October 2023*

値段のわりにパワーしっかりでて音の調整幅 、音質も気になる欠点なく良かった！ 値段以上に良い商品でした。 参考までに自分は定格3500wのアンプ買ってロックフォードt2定格1200wのウーハー2発鳴らすためにアンプ１つ買いましたが余裕でパワーでていい感じです。

## Frequently Bought Together

- Skar Audio RP-75.4AB 500 Watt Full-Range Class A/B 4 Channel Car Amplifier
- Skar Audio RP-1200.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 1200W
- Skar Audio 4 Gauge Amplifier Wiring Kit - Blue, Copper Clad Aluminum, SKAR4ANL-CCA

---

## 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.hk/products/223932021-skar-audio-rp-75-4ab-500-watt-full-range-class](https://www.desertcart.hk/products/223932021-skar-audio-rp-75-4ab-500-watt-full-range-class)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-23*