---
product_id: 699572490
title: "X-A90M Mono Power Density Digital Amplifier"
brand: "alpine"
price: "HK$9322"
currency: HKD
in_stock: true
category: "Alpine"
url: https://www.desertcart.hk/products/699572490-x-a90m-mono-power-density-digital-amplifier
store_origin: HK
region: Hong Kong
---

# 1800W max power output 900W RMS @ 2 ohms, pure subwoofer punch Variable low-pass filter 50-400Hz X-A90M Mono Power Density Digital Amplifier

**Brand:** alpine
**Price:** HK$9322
**Availability:** ✅ In Stock

## Summary

> 🔊 Unleash the bass beast – because your ride deserves to be heard.

## Quick Answers

- **What is this?** X-A90M Mono Power Density Digital Amplifier by alpine
- **How much does it cost?** HK$9322 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/699572490-x-a90m-mono-power-density-digital-amplifier)

## Best For

- alpine enthusiasts

## Why This Product

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

## Key Features

- • **Class-D Efficiency:** Advanced digital Class-D tech ensures high power with minimal heat and maximum reliability.
- • **Seamless Integration:** Preamp and speaker-level inputs plus quick-connect terminals make installation a breeze.
- • **Powerhouse Performance:** Delivers up to 1800W max power for earth-shaking bass that commands attention.
- • **Precision Bass Control:** Variable low-pass filter and switchable subsonic filter tailor your subwoofer’s voice with surgical accuracy.
- • **Pro-Grade Remote Control:** Optional wired remote lets you fine-tune bass levels without leaving the driver’s seat.

## Overview

The Alpine X-A90M is a high-performance Class-D mono amplifier delivering up to 900W RMS at 2 ohms and 600W RMS at 4 ohms, designed specifically for subwoofer power. Featuring a variable low-pass filter (50-400Hz), switchable subsonic filter, and optional remote level control, it offers precise bass tuning and efficient power delivery in a compact 6x11x14 inch package. Ideal for audiophiles seeking deep, distortion-free bass with professional-grade installation flexibility.

## Description

mono subwoofer amplifier 600 watts RMS x 1 at 4 ohms (900 watts RMS x 1 at 2 ohms) CEA-2006 compliant Class-D amplifier technology frequency response: (+0/-1 dB) 10 to 300 Hz variable low-pass filter (50-400 Hz, 24 dB/octave) switchable subsonic filter (off, 15 Hz, 30 HZ) optional RUX-KNOB.2 wired remote level control preamp and speaker-level inputs speaker-level inputs require speaker wire to RCA adapters RCA preamp outputs quick-connect speaker connectors fit wire up to 8-gauge fuse rating: 20A x 4 wiring and hardware not included with amplifier 4-gauge power and ground wire recommended 10"W x 2"H x 8"D

## Features

- Amplifier Type: Class-D (Digital)
- Channel Design: 4-channel + 1-channel (Mono)
- Total Max Power: 1800W
- Per Channel into 4ohms, 14.4V (≤1%THD+N): 600W Per Channel into 2ohms, 14.4V (≤1%THD+N): 900W

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0767HM6HN |
| Best Sellers Rank | #977,151 in Electronics ( See Top 100 in Electronics ) #1,600 in Car Mono Amplifiers #5,240 in Audio Component Amplifiers |
| Brand Name | Alpine |
| Customer Reviews | 4.9 out of 5 stars 27 Reviews |
| Global Trade Identification Number | 00793276040565, 04958043888078 |
| Included Components | Car Amplifier |
| Item Dimensions | 6 x 11 x 14 inches |
| Item Weight | 4 kg |
| Item dimensions L x W x H | 6 x 11 x 14 inches |
| Manufacturer | Alpine |
| Maximum Output Power | 1800W |
| Maximum Supply Voltage | 14.4 volts_of_direct_current |
| Minimum Supply Voltage | 14.4 volts_of_direct_current |
| Model | X-A90M |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Power | 900 watts |
| Package Type Name | Bulk |
| Part Number | X-A90M |
| UPC | 793276040565 |
| Unit Count | 1 Count |
| Voltage | 14.4 volts |

## Product Details

- **Item dimensions L x W x H:** 6 x 11 x 14 inches
- **Manufacturer:** Alpine
- **Maximum Supply Voltage:** 14.4 volts_of_direct_current
- **Minimum Supply Voltage:** 14.4 volts_of_direct_current
- **Voltage:** 14.4 volts

## Images

![X-A90M Mono Power Density Digital Amplifier - Image 1](https://m.media-amazon.com/images/I/511lOtCMhjL.jpg)
![X-A90M Mono Power Density Digital Amplifier - Image 2](https://m.media-amazon.com/images/I/41Snx2-lThL.jpg)

## Frequently Bought Together

- Alpine X-A90M Mono Power Density Digital Amplifier
- Alpine Electronics DAB and Bluetooth 1 Din Radio
- Alpine RUE-4360 Remote Control for Head Units, black

---

## 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/699572490-x-a90m-mono-power-density-digital-amplifier](https://www.desertcart.hk/products/699572490-x-a90m-mono-power-density-digital-amplifier)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-10-07*