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Sundown Audio SIA-5000D Monoblock 5000W RMS Smart Amplifier

  • Based on 14 reviews
Condition: New
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$674.99 Why this price?

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: Only 1 left in stock, order soon!
Fulfilled by D-C-O

Arrives Monday, Dec 29
Order within 3 hours and 37 minutes
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Wattage: 5000 Watts


Features

  • MASSIVE POWER OUTPUT: Experience extreme, competition-grade performance with the SIA-5000D. Delivering a monumental 5000W RMS @ 1 Ohm, 4950W @ 2 Ohms, and 3400W @ 4 Ohms, this intelligent full-bridge monoblock amplifier provides stable, high-fidelity output for the most demanding subwoofers or pro audio setups in a compact 2.68 x 8.86 x 13.78 design.
  • PRECISE AUDIO CONTROL: Fine-tune your sound with unparalleled precision. Features variable 12dB Low Pass (40Hz-20kHz) and High Pass (10Hz-1kHz) filters, a powerful 12dB Bass Boost @ 50Hz, and a crucial Subsonic Filter, ensuring clean, optimized bass and full-range output without distortion.
  • ADVANCED COOLING SYSTEM: Engineered for relentless, all-day performance, the SIA-5000D incorporates an advanced 3-speed Smart Cooling fan and heavy-duty heatsink. This superior thermal management prevents overheating and ensures stable, high-quality output, even under extreme conditions.
  • 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 powerful 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).

Description

Unleash incredible power with the Sundown Audio SIA-5000D Full-Range Mono Amplifier—engineered to deliver a mind-blowing 5,000W RMS at 1 ohm. Designed with Sundown’s intelligent full-bridge architecture, this amp offers unmatched stability and efficiency for audiophiles who demand the loudest, cleanest bass. Its heavy-duty heatsink and advanced 3-speed Smart Cooling fan keep temperatures under control during the most intense sessions, protecting the system from overheating and ensuring reliable, consistent performance. Enjoy precision audio tuning with variable 12dB low pass (40Hz–20kHz) and high pass (10Hz–1kHz) filters, plus a bass boost at 50Hz for truly earth-shaking lows. A built-in subsonic filter safeguards your subwoofers from damaging ultra-low frequencies, while comprehensive protection circuitry defends against thermal, voltage, speaker short, and DC-offset issues. The included wired remote with a clipping indicator provides convenient, on-the-fly control from the driver’s seat, letting you dial in perfect sound without compromise. Trusted by bass competitors and serious enthusiasts alike, the SIA-5000D is built to bang all day, delivering world-class power and reliability in any setup.Product Features:5000W RMS @ 1 Ohm for extreme powerIntelligent full-bridge amp designHeavy-duty heatsink for cooling3-speed Smart Cooling fanVariable low & high pass filtersBass boost @ 50Hz for deep lowsBuilt-in subsonic filter protectionThermal and voltage protection circuitsWired remote with clip indicatorPower, protection & clip LEDs

Item dimensions L x W x H: 13.78 x 7.28 x 2.44 inches


Voltage: 14.4 Volts


Manufacturer: Sundown Audio


Maximum Supply Voltage: 15.5 Volts (DC)


Minimum Supply Voltage: 10.5 Volts


Product Dimensions ‏ : ‎ 13.78 x 7.28 x 2.44 inches; 11 Pounds


Item model number ‏ : ‎ A-SIA5000


Date First Available ‏ : ‎ February 15, 2024


Manufacturer ‏ : ‎ Sundown Audio


Customer Reviews: 3.7 3.7 out of 5 stars 14 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great amp
Great amp. Bought for our son. He is very happy.
Reviewed in the United States on March 6, 2025 by Steve D.

  • Spend your money wisely don't just read what it says and go off of that this is BS
It says it's a 3500 watt RMS amp amp but this is not a 3500 watt RMS amp. This does not pull out the pressure like it's supposed to 3500 Watts it's supposed to sound way better than this this sounds like a 1500 watt amp very poor. I didn't like it the bill quality was not all there the durability was very heavy so I guess it was strong enough the heat the amp never really got hot because it wasn't doing anything not worth the value of your money ... show more
Reviewed in the United States on May 6, 2025 by Rachel Benedict

  • Ball's advertisement on a three year protection plan and given a refund back
Wattage: 8000 Watts
I purchased this amp, November 5th 2024. The amplifier has stopped working, and it's now April of 2025 i' purchase a 3 year Ia protection plan. It has been over a month and I have not received my money back. No help.
Reviewed in the United States on May 7, 2025 by Marshall miller

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