---
product_id: 383503169
title: "BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range"
brand: "boss audio systems"
price: "€ 509.75"
currency: EUR
in_stock: false
reviews_count: 5
category: "Boss Audio Systems"
url: https://www.desertcart.nl/products/383503169-boss-audio-systems-ox1-5km-onyx-series-car-audio-subwoofer
store_origin: NL
region: Netherlands
---

# 1500W max power output Class A/B topology for clean sound Variable low-pass crossover BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range

**Brand:** boss audio systems
**Price:** € 509.75
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Unleash the bass beast in your ride — because your sound deserves to be boss!

## Quick Answers

- **What is this?** BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range by boss audio systems
- **How much does it cost?** € 509.75 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/383503169-boss-audio-systems-ox1-5km-onyx-series-car-audio-subwoofer)

## Best For

- boss audio systems enthusiasts

## Why This Product

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

## Key Features

- • **Compact Yet Mighty:** Sleek 10.4” x 7” x 2.3” design packs powerful performance without sacrificing space.
- • **Versatile Connectivity:** Supports both low and high level inputs, making integration with any car audio system seamless.
- • **Tailor Your Bass Experience:** Switchable bass boost and variable low-pass crossover let you customize your subwoofer’s punch.
- • **Power That Commands Attention:** Delivers a thunderous 1500W max output at 2 Ohms for deep, room-shaking bass.
- • **Precision MOSFET Power Supply:** Ensures efficient, stable power delivery with minimal signal loss for crystal-clear audio.

## Overview

The BOSS Audio Systems OX1.5KM Onyx Series is a monoblock car amplifier delivering up to 1500 watts max output at 2 Ohms. Featuring Class A/B topology and a MOSFET power supply, it offers efficient, high-fidelity sound with customizable bass via switchable boost and variable low-pass crossover. Compatible with both low and high level inputs, this compact amplifier is designed for powerful subwoofer performance in any car audio setup.

## Description

BOSS Audio Systems OX1.5KM Monoblock Car Amplifier – 1500 High Output, 2-8 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Bass for Subwoofer

Review: desertcart is awesome!
Review: Better for 8" subs

## Features

- Power - 1500 Max x 1 @2 Ohms, 750 Max x 1 @4 Ohms
- MOSFET Power Supply - A MOSFET is an electrical switch that allows the flow of electrical current. It controls the output voltage and current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry
- Class A/B Topology - Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal
- Switchable Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it
- Variable Low-Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction
- Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
- Variable Gain Control - The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier
- Specs - Dimensions: 10.4” x 7” x 2.3”, Weight 5.2 lbs.
- 6 Year Platinum Online Dealer Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P5JNFPG |
| Best Sellers Rank | #1,044,833 in Electronics ( See Top 100 in Electronics ) #75 in Car Stereo Amplifiers |
| Brand | BOSS Audio Systems |
| Brand Name | BOSS Audio Systems |
| Customer Reviews | 4.0 out of 5 stars 154 Reviews |
| Global Trade Identification Number | 00791489125833 |
| Item Dimensions | 26.4 x 16 x 5.8 Centimeters |
| Item Weight | 2.27 kg |
| Item dimensions L x W x H | 26.4 x 16 x 5.8 Centimeters |
| Manufacturer | BOSS Audio Systems |
| Material Type | MOSFET |
| Model Number | OX1.5KM |
| Mounting Type | Car Mount |
| Number of Channels | 1 |
| Output Power | 1500 Watts |
| Package Type Name | box |
| Specification Met | Fcc, Ce, Ic |
| UPC | 791489125833 |
| Voltage | 16 Volts |

## Product Details

- **Item dimensions L x W x H:** 26.4 x 16 x 5.8 Centimeters
- **Voltage:** 16 Volts
- **Manufacturer:** BOSS Audio Systems
- **Mounting Type:** Car Mount
- **Brand:** BOSS Audio Systems

## Images

![BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range - Image 1](https://m.media-amazon.com/images/I/71vD0G4dtUL.jpg)
![BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range - Image 2](https://m.media-amazon.com/images/I/81ipqX4ydSL.jpg)
![BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range - Image 3](https://m.media-amazon.com/images/I/71ZfPjoc7UL.jpg)
![BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range - Image 4](https://m.media-amazon.com/images/I/713SUo8T9cL.jpg)
![BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier � 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range - Image 5](https://m.media-amazon.com/images/I/71JATliUHWL.jpg)

## Questions & Answers

**Q: are boss amp power ratings rms"?**
A: As far as I know they are

**Q: Description says 5000 watt but the pictures say 1500 watt.  Which is correct?**
A: 1500

**Q: For the 4000 watt unit would it be 1000watts rms at 2ohm or is it 2000rms?(plz don't answer if you are unsure)**
A: I have 2 of them and it get hot and shot down. It shot down when it get hot.

**Q: Will this amp push 3 12 kicker comps run in series**
A: Not sure but I believe mono block is the best way to hit at 1 ohm and  this amp is rms rate 1001watts so if each speaker is rated rms 300watts your golden pony boy

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazon is awesome!
*by A***R on 17 April 2025*



### ⭐⭐⭐ Better for 8" subs
*by A***R on 31 May 2022*



### ⭐⭐⭐⭐⭐ Amazing
*by ♊***♊ on 21 October 2023*



## Frequently Bought Together

- BOSS Audio Systems OX1.5KM Onyx Series Car Audio Subwoofer Amplifier – 1500 High Output, Class A/B, 2/4 Ohm, Low/High Level Inputs, Low Pass Crossover, MOSFET Power, Monoblock, Full Range
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals
- Scosche LOC2SL Line Output Converter with Remote Control Knob - 2CH High/Low RCA Converter Car Audio - Ideal for Subwoofer Amp - Line Level Converter for Car Stereo - Easy Installation - Quality Sound

---

## 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.nl/products/383503169-boss-audio-systems-ox1-5km-onyx-series-car-audio-subwoofer](https://www.desertcart.nl/products/383503169-boss-audio-systems-ox1-5km-onyx-series-car-audio-subwoofer)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-09*