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Sundown Audio SFB-3000D 3000W RMS Class D Monoblock Amplifier - 1 Ohm Stable, High-Efficiency Car Subwoofer Amp with Variable Crossover Filters, Bass Boost, and Smart Cooling

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Feb 3
Order within 3 hours and 50 minutes
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Wattage: 3000 Watts


Features

  • Extreme Power for Demanding Bass: The Sundown Audio SFB-3000D is engineered for serious bass enthusiasts. Delivering a massive 3000W RMS at 1 Ohm, this monoblock amplifier provides the clean, reliable power needed to drive high-power subwoofers. Its efficient Class D design ensures peak performance without excessive heat, allowing you to push your system to its limits.
  • Compact & Highly Efficient Design: Despite its immense power, the SFB-3000D features a compact and efficient monoblock design. This allows for versatile installation in tight spaces, making it an ideal choice for customizing your car's audio system without sacrificing performance. The amp's smart thermal management and temperature-activated cooling fan keep it running cool under extreme loads.
  • Precise Crossover & Tuning Options: Achieve the perfect sound with advanced tuning capabilities. The amp includes a variable High-Pass Filter (HPF) from 15Hz to 80Hz, a variable Low-Pass Filter (LPF) from 80Hz to Full Range, and a powerful 0-12dB bass boost centered at 50Hz. These controls give you the flexibility to fine-tune your subwoofer for optimal low-end enhancement.
  • Robust & Reliable Protection System: Your investment is fully protected by a multi-faceted 4-way protection circuit. Safeguarding against short circuits, low/high voltage, and thermal overload, this system ensures the longevity and stability of both the amplifier and your subwoofers. The amp's durable build and smart features provide peace of mind for every listening session.
  • Exceptional Sound Quality & Clarity: The SFB-3000D is designed for a pristine audio experience. With a wide frequency response of 10Hz-20kHz and a solid Signal-to-Noise Ratio of 86dB, the amplifier delivers clean, distortion-free output. This level of clarity ensures that every bass note is reproduced with accuracy and impact, making it perfect for both daily use and competition-level systems.

Description

Sundown Audio SFB-3000D Monoblock Amplifier: High-Performance Bass for Your Car Audio SystemLooking for serious power and precision for your car audio setup? The Sundown Audio SFB-3000D is a high-performance Class D monoblock amplifier built for bass lovers who crave clean, reliable power. Engineered by one of the most respected names in the industry, this amp delivers up to 3000W RMS at 1 Ohm, making it an ideal match for high-power subwoofers and demanding systems. Key Features for Unmatched PerformanceThe SFB-3000D is packed with features that ensure a powerful and protected listening experience. Its Monoblock Class D Design is both compact and efficient, generating less heat than traditional amplifiers while delivering massive output.RMS Power Ratings:3000W RMS @ 1 Ohm (14.4V DC)2025W RMS @ 2 Ohm1140W RMS @ 4 OhmThese robust power ratings ensure you have all the horsepower you need to drive your subwoofers to their full potential.Crossover and Tuning Options for Perfect SoundTake full control of your audio with the SFB-3000D's precise tuning capabilities. The variable High-Pass Filter (HPF) and Low-Pass Filter (LPF) allow you to perfectly tailor the frequency range of your subwoofer, while the variable Bass Boost control (0-12dB centered at 50Hz) lets you dial in the exact amount of low-end thump you desire. A wide frequency response of 10Hz–20kHz and an impressive Signal-to-Noise Ratio of 86dB guarantee that your sound is always clean and free of distortion.Intelligent Protection & Smart Thermal ManagementSundown Audio understands the importance of reliability. The SFB-3000D features a comprehensive 4-way protection circuit that safeguards the amplifier and connected speakers against:Thermal overloadVoltage fluctuations (both high and low)Speaker short circuitsTo maintain optimal operating temperature, a temperature-activated cooling fan with a smart 3-speed system keeps the amplifier running cool even under extreme loads.Why Choose the SFB-3000D?The Sundown Audio SFB-3000D is the perfect blend of power, precision, and protection. Its compact size, combined with its high- output capabilities and advanced tuning options, makes it a top-tier choice for car audio enthusiasts looking to build a high-performance system. The amplifier's reliable design and smart features ensure it will deliver powerful, clean bass for years to come.Boost your car audio performance today with the Sundown Audio SFB-3000D.

Item dimensions L x W x H: 8 x 5.8 x 2.3 inches


Voltage: 16 Volts (DC)


Manufacturer: Sundown Audio Amplifier


Maximum Supply Voltage: 15.5 Volts


Minimum Supply Voltage: 14.4 Volts (DC)


Item dimensions L x W x H: ‎8 x 5.8 x 2.3 inches


Voltage: ‎16 Volts (DC)


Manufacturer: ‎Sundown Audio Amplifier


Maximum Supply Voltage: ‎15.5 Volts


Minimum Supply Voltage: ‎14.4 Volts (DC)


Mounting Type: ‎Surface Mount


Brand: ‎Sundown Audio


Number of Channels: ‎1


Operating Temperature: ‎40 Degrees Celsius


Output Power: ‎3000 Watts


Package Type Name: ‎box


Specification Met: ‎CE, FCC


Material: ‎Metal


UPC: ‎793276051301


Product Dimensions: ‎8 x 5.8 x 2.3 inches


Item Weight: ‎9.09 pounds


Item model number: ‎SFB-3000D


Date First Available: ‎September 10, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 3

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


  • Very nice and powerful
Wattage: 3000 Watts
Works great fast shipping
Reviewed in the United States on November 23, 2025 by Koua Moua

  • Sounded great then fried itself
Wattage: 3000 Watts
Amp fried itself after a certified sundown retailer set gains and hooked up amp...
Reviewed in the United States on April 17, 2021 by Tristan

  • LOVE IT!
Wattage: 3000 Watts
Still driving a set of Kicker CompVR 12's with no problem. Love the clipping indicator. What else can you say about this thing, it's the low end model but it hits hard, works reliably, and just gets the job done without any fancy fluff. LOVE IT!
Reviewed in the United States on June 14, 2025 by Bobby D.

  • BUY ITTTT
Wattage: 3000 Watts
amazon has a note saying most returned. i don't see why it would be tagged as that. great output, underrated by at least 15%. definitely hitting 3500 - 3800 with out a doubt!! Bass control and sound quality was a big concern of mine and this would land in my top 5.
Reviewed in the United States on August 18, 2025 by Daniel Gonzales

  • Sundown 3000.d amp
Wattage: 3000 Watts
It's a great amp not gonna lie. It pushes much harder than I thought it would and sounds great when cranked up. But it doesn't push too hard at lower volumes and the clip light will blink at the peaks. Draws lots of amps so make sure your running big wire and have the output to feed it. Other than that it's great! ... show more
Reviewed in the United States on July 20, 2023 by Cody

  • Great if you know how to use a high wattage amp.
Wattage: 3000 Watts
I have this powering two Sundown 12" subs. I have this hooked up to XS power AGM battery and IOXUS 12V Group 31 Smart Power Bluetooth Car Audio Ultra Capacitor UC-31 using 1/0 welding cable. This amp doesn't even get warm. I'm guessing the people having fires are using copper clad aluminum wires and stock powers sources with too much draw on crappy power systems = HEAT. This is a 3000 watt amp and no your stock electrical will not power it safely. Do the Big three upgrade and use proper OFC 1/0 wire with extra power source like XS power Batteries and Ultra caps. ... show more
Reviewed in the United States on October 22, 2021 by Peter

  • DO NOT BUY.
Wattage: 3000 Watts
I have purchased 2 of these amps, the first time was definitely my fault the speaker wires touched and dead shorted, not complaining about that situation. Although the 2nd amp I got threw itself into protect out of nowhere , I crunk up my vehicle and the amp was in protect , everting was just fine the night before. I don’t believe this is a true sundown amp… sundown does not offer this amp on their website , the biggest SFB series amp they offer is a 1800. ... show more
Reviewed in the United States on August 1, 2024 by Riley

  • This amp delivers
Wattage: 3000 Watts
Paired it with a sundown 15” sub. Did big 3 upgrade, AGM battery, and 320 amp alternator. This amp delivers the power!!! Shaking my poor Jeep to pieces. Great sound quality. Performance is as advertised. Good value for the price. The bass knob is nice, too.
Reviewed in the United States on May 30, 2024 by Travis

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