---
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: "€ 320.25"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/383503169-boss-audio-systems-ox1-5km-onyx-series-car-audio-subwoofer
store_origin: IE
region: Ireland
---

# 1500W max power output MOSFET power supply for precision 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:** € 320.25
**Availability:** ✅ In Stock

## Summary

> 🎵 Power your drive with bass that moves more than just air!

## 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?** € 320.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/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 & Lightweight:** Sleek 10.4” x 7” x 2.3” design weighing just 5.2 lbs fits effortlessly into your ride without compromise.
- • **Flexible Connectivity:** Supports both low and high level inputs for seamless integration with any car audio system.
- • **Precision MOSFET Tech:** Advanced MOSFET power supply ensures razor-sharp voltage control and ultra-efficient energy flow.
- • **Tailored Bass Control:** Variable low-pass crossover and switchable bass boost let you sculpt your perfect subwoofer soundscape.
- • **Unmatched Power Surge:** Delivers a thunderous 1500W max output at 2 Ohms for earth-shaking bass that commands attention.

## Overview

The OX1.5KM Onyx Series is a high-performance monoblock car subwoofer amplifier delivering up to 1500 watts max output at 2 Ohms. Featuring a Class A/B topology and precision MOSFET power supply, it offers efficient, distortion-free bass amplification. With variable low-pass crossover, switchable bass boost, and support for both low and high level inputs, it provides versatile, customizable sound control in a compact, lightweight form factor designed for seamless car audio integration.

## Description

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

## Features

- POWER - 1500 Watts Max x 1 @2-Ohms, 750 Watts 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
- 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
- SWITCHABLE BASS BOOST: Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |
| Number of Channels | 1 |
| Output Power | 1500 Watts |
| Package Type Name | box |
| Specification Met | Fcc, Ce, Ic |
| Material | MOSFET |
| Global Trade Identification Number | 00791489125833 |
| UPC | 791489125833 |
| Model number | OX1.5KM |
| Colour | black |
| Speaker Surround Sound Channel Configuration | 2 1 |
| Item Weight | 2 kg 270 g |
| Product Dimensions | 26.42 x 16 x 5.84 cm; 2.27 kg |
| Item model number | OX1.5KM |
| Item Height | 2.3 Inches |
| Item Width | 6.3 Inches |
| Wattage | 1500 Watts |
| Power Source | Corded Electric |
| Are batteries included? | No |
| Maximum Speaker Output Power | 1500 Watts |
| External Certification | não disponível |

## 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)

## 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

## 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
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-04*