---
product_id: 785413352
title: "SIA-1250D Full-Range Mono Amplifier - 1250W RMS @ 1?/2? Smart Full Bridge Car Amp with Subsonic Filter, Variable HPF/LPF, Bass Boost, 3-Speed Fan for Subwoofers & Speakers"
brand: "sundown audio"
price: "KD 135.64"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/785413352-sia-1250d-full-range-mono-amplifier-1250w-rms-1-2
store_origin: KW
region: Kuwait
---

# 1250W RMS power @ 1/2 Ohm 3-speed Smart Cooling fan Variable 12dB HPF/LPF & Bass Boost SIA-1250D Full-Range Mono Amplifier - 1250W RMS @ 1?/2? Smart Full Bridge Car Amp with Subsonic Filter, Variable HPF/LPF, Bass Boost, 3-Speed Fan for Subwoofers & Speakers

**Brand:** sundown audio
**Price:** KD 135.64
**Availability:** ✅ In Stock

## Summary

> 🎵 Power, Precision, and Protection — Amplify Your Drive Like a Pro!

## Quick Answers

- **What is this?** SIA-1250D Full-Range Mono Amplifier - 1250W RMS @ 1?/2? Smart Full Bridge Car Amp with Subsonic Filter, Variable HPF/LPF, Bass Boost, 3-Speed Fan for Subwoofers & Speakers by sundown audio
- **How much does it cost?** KD 135.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/785413352-sia-1250d-full-range-mono-amplifier-1250w-rms-1-2)

## Best For

- sundown audio enthusiasts

## Why This Product

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

## Key Features

- • **Unleash Massive Power:** 1250W RMS output delivers earth-shaking bass and crystal-clear highs for your ultimate car audio experience.
- • **Rock-Solid Reliability:** Multi-point protection circuitry guards against thermal, voltage, and short-circuit damage for worry-free driving.
- • **Precision Audio Control:** Fine-tune your sound with adjustable low/high pass filters and a powerful bass boost to match your vibe perfectly.
- • **Stay Cool Under Pressure:** Advanced 3-speed fan and heavy-duty heatsink keep your amp running flawlessly during marathon listening sessions.
- • **Effortless Sound Management:** Included wired remote with clipping indicator lets you control and monitor your audio output in real-time.

## Overview

The SIA-1250D is a compact yet powerful full-range mono amplifier delivering 1250W RMS at 1 and 2 Ohms, equipped with variable HPF/LPF filters, a bass boost, and a subsonic filter for pristine sound quality. Its advanced 3-speed cooling system and multi-point protection ensure reliable, high-performance operation, while the included remote control offers convenient real-time audio management for subwoofers and speakers.

## Description

Sundown Audio SIA-1250D Full-Range Mono Amplifier: Intelligent Power & Unwavering Stability for Car AudioUnleash the full potential of your car audio system with the Sundown Audio SIA-1250D Full-Range Mono Amplifier. As part of the "Smart Full Bridge" (SIA) series, this high-quality amplifier is built with power and stability at its core, meticulously engineered to deliver exceptional performance for both demanding subwoofers and high-fidelity full-range speaker systems. Delivering the same impressive power output at both 1 Ohm and 2 Ohms, the SIA-1250D sets a new standard for compact, professional-grade car audio amplification.𝐌𝐀𝐒𝐒𝐈𝐕𝐄 𝐏𝐎𝐖𝐄𝐑 𝐎𝐔𝐓𝐏𝐔𝐓: The SIA-1250D is a true powerhouse, offering unparalleled output for its size:1,250 Watts RMS x 1 @ 1 Ohm1,250 Watts RMS x 1 @ 2 Ohms800 Watts RMS x 1 @ 4 Ohms This consistent power delivery at low impedances ensures your speakers receive the robust energy they need for dynamic and impactful sound. All this immense power is housed within an incredibly compact design, with dimensions of just 7.25” x 5.75” x 2.45” (HxWxD), making it versatile for installation in nearly any vehicle.𝐏𝐑𝐄𝐂𝐈𝐒𝐄 𝐀𝐔𝐃𝐈𝐎 𝐂𝐎𝐍𝐓𝐑𝐎𝐋: Achieve perfect sound optimization with the SIA-1250D's comprehensive and intuitive audio control features:Variable 12dB Low Pass Filter (40Hz-20kHz): Finely sculpt your bass frequencies or integrate full-range speakers.Variable 12dB High Pass Filter (10Hz-1kHz): Optimize mid-range and high-frequency speaker performance, preventing distortion.Variable 12dB Bass Boost @ 50Hz: Dial in the ideal amount of impactful low-end punch for your preferred listening experience.Dedicated Subsonic Filter: Ensures only the most essential low frequencies reach your subwoofer, protecting it from damaging ultra-low frequencies and delivering cleaner, tighter bass.𝐀𝐃𝐕𝐀𝐍𝐂𝐄𝐃 𝐂𝐎𝐎𝐋𝐈𝐍𝐆 𝐒𝐘𝐒𝐓𝐄𝐌: Designed for relentless, high-performance operation, the SIA-1250D features a superior thermal management system. It incorporates a heavy-duty heatsink for outstanding passive cooling, complemented by an Advanced 3-speed Smart Cooling fan design. This intelligent fan actively adjusts its speed to maintain optimal operating temperatures, preventing overheating and ensuring stable, undistorted output even during prolonged, demanding use.𝐂𝐎𝐌𝐏𝐑𝐄𝐇𝐄𝐍𝐒𝐈𝐕𝐄 𝐏𝐑𝐎𝐓𝐄𝐂𝐓𝐈𝐎𝐍: Drive with absolute confidence. The SIA-1250D is equipped with robust, integrated 4-way protection circuitry to safeguard your investment:Thermal Protection: Automatically shuts down if it gets too hot.Voltage Protection: Protects against over or under-voltage conditions (Working Voltage: 10.5V – 15.5V DC).Speaker Short Protection: Prevents damage from wiring faults.DC-Offset Protection: Shields speakers from harmful DC currents. These features, alongside clear power and protection indicators, ensure long-term reliability. A Recommended Fuse Rating of 120A provides further safety.𝐔𝐒𝐄𝐑-𝐅𝐑𝐈𝐄𝐍𝐃𝐋𝐘 𝐂𝐎𝐍𝐓𝐑𝐎𝐋: The included wired remote control makes optimizing your audio incredibly convenient. It features a crucial clipping indicator, allowing for real-time monitoring of your signal to prevent distortion and damage to your speakers. With an Input Sensitivity of 5V Max and an exceptional Single Noise Ratio of 108dB, the SIA-1250D ensures a clean, powerful, and easily managed audio experience.The Sundown Audio SIA-1250D is a high-quality, intelligent full-bridge amplifier offering professional-grade power and features in a compact, reliable package, making it the ultimate choice for enhancing your car audio system.

## Features

- 𝐌𝐀𝐒𝐒𝐈𝐕𝐄 𝐏𝐎𝐖𝐄𝐑 𝐎𝐔𝐓𝐏𝐔𝐓: Experience uncompromised power with the SIA-1250D, delivering 1250W RMS @ 1 Ohm and 1250W RMS @ 2 Ohms, plus 800W RMS @ 4 Ohms. This intelligent full-bridge mono amplifier provides stable, high-fidelity output for subwoofers or full-range speakers in a compact 7.25” x 5.75” x 2.45” design.
- 𝐏𝐑𝐄𝐂𝐈𝐒𝐄 𝐀𝐔𝐃𝐈𝐎 𝐂𝐎𝐍𝐓𝐑𝐎𝐋: Fine-tune your sound with extreme precision. The amplifier features variable 12dB Low Pass (40Hz-20kHz) and High Pass (10Hz-1kHz) filters, along with a powerful 12dB Bass Boost at 50Hz and a dedicated Subsonic Filter, ensuring clean, optimized audio performance for any setup.
- 𝐀𝐃𝐕𝐀𝐍𝐂𝐄𝐃 𝐂𝐎𝐎𝐋𝐈𝐍𝐆 𝐒𝐘𝐒𝐓𝐄𝐌: Designed for relentless performance, the SIA-1250D incorporates an advanced 3-speed Smart Cooling fan and a heavy-duty heatsink. This superior thermal management system efficiently dissipates heat, preventing overheating and maintaining stable output, even during intense listening sessions.
- 𝐂𝐎𝐌𝐏𝐑𝐄𝐇𝐄𝐍𝐒𝐈𝐕𝐄 𝐏𝐑𝐎𝐓𝐄𝐂𝐓𝐈𝐎𝐍: Drive with absolute confidence thanks to integrated multi-point protection circuitry. Thermal, voltage, speaker short, and DC-offset protection safeguard your amplifier and connected components from potential damage, ensuring long-term reliability and consistent high-quality sound.
- 𝐔𝐒𝐄𝐑-𝐅𝐑𝐈𝐄𝐍𝐃𝐋𝐘 𝐂𝐎𝐍𝐓𝐑𝐎𝐋: Optimize your audio conveniently with the included wired remote control. Featuring a clipping indicator, this remote allows real-time monitoring to prevent distortion, ensuring clean power delivery and letting you manage output levels directly for maximum sound quality. (Input Sensitivity: 5V Max, S/N Ratio: 108dB).

## Product Details

- **Manufacturer:** Sundown Audio
- **Mounting Type:** Freestanding
- **Brand:** Sundown Audio
- **Specification Met:** FCC
- **Global Trade Identification Number:** 00810111130592

## Images

![SIA-1250D Full-Range Mono Amplifier - 1250W RMS @ 1?/2? Smart Full Bridge Car Amp with Subsonic Filter, Variable HPF/LPF, Bass Boost, 3-Speed Fan for Subwoofers & Speakers - Image 1](https://m.media-amazon.com/images/I/51vC8+4X12L.jpg)

## Available Options

This product comes in different **Wattage** options.

---

## 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.com.kw/products/785413352-sia-1250d-full-range-mono-amplifier-1250w-rms-1-2](https://www.desertcart.com.kw/products/785413352-sia-1250d-full-range-mono-amplifier-1250w-rms-1-2)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-11*