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Sundown Audio SFB-3000D 3000W Mono Class D Car Amplifier 1-Ohm Bass Boost

Based on 225 reviews
Condition: New
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$269.00

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Availability: In Stock.
Fulfilled by Pro Audio Center (Authorized Dealer)

Arrives Sunday, Nov 15
Order within 18 hours and 25 minutes

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At a glance

Condition
New
Wattage
3000 Watts
Model
SFB-3000D
Dimensions
10.9 x 11.5 x 5 in
Material
Metal
Voltage
14.4 volts, 15.5 volts
Maximum Supply Voltage
15.5 volts
In the box
1 x SFB-3000D 3000 Watt Mono Amplifier
Warranty
1 Year Manufacturer

Features 5

  • Mono Class D Power: Digital Class D monoblock amplifier for car subwoofer systems; 1-Ohm stable load support; compact install-friendly layout
  • High RMS Output: Delivers 3000W RMS at 1 Ohm; 2000W RMS at 2 Ohms; 1100W RMS at 4 Ohms; clear power ratings for matched subwoofer loads
  • Tuning For Bass Systems: Variable 12 dB per octave low pass filter; 0 to 12 dB bass boost; shape low-frequency response for daily listening, demos, or custom builds
  • Protection And Cooling: Four-way protection covers thermal, voltage, speaker short, and DC offset conditions; three-speed temperature-activated fan manages heat under heavy playback

Description

The Sundown Audio SFB-3000D is a high-output mono car audio amplifier made for subwoofer systems that need serious RMS power from one compact Class D chassis. It supports 1-Ohm stable operation and pairs strong output with system tuning controls for daily driver, demo, and custom car audio builds. This amplifier delivers 3000W RMS at 1 Ohm, 2000W RMS at 2 Ohms, and 1100W RMS at 4 Ohms, giving installers flexible wiring options for compatible subwoofer loads. A dual MOS-FET PWM power supply supports consistent output, while the recommended 250A fuse rating matches the amplifier's power demands. Built-in tuning includes a 12 dB per octave variable low pass filter and 0 to 12dB variable bass boost for dialing in low-frequency response. Four-way protection covers thermal, voltage, speaker short, and DC offset conditions, and the smart three-speed temperature-activated fan helps manage heat during heavy playback. Technical Highlights: Power Output: 3000W RMS at 1 Ohm, 2000W RMS at 2 Ohms, 1100W RMS at 4 Ohms Voltage Range: 10.5V to 15.5V DC working voltage Signal Noise Ratio: 86dB rating Size: 9.00 x 8.25 x 2.50 inches The SFB-3000D is suited for car audio hobbyists, installers, and subwoofer owners building a single-amplifier bass system. Its mix of 1-Ohm power, wired remote with clipping indicator, protection circuitry, and compact size gives it a strong fit for high-power subwoofer setups without adding multiple amplifiers.

Specs 21

Item dimensions L x W x H 10.9 x 11.5 x 5 inches
Voltage 14.4 volts, 15.5 volts
Manufacturer Sundown Audio
Maximum Supply Voltage 15.5 volts
Minimum Supply Voltage 14.4 V DC
Mounting Type Surface Mount
Number of Channels 1
Operating Temperature 40 °C

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 15

Yes, absolutely! This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Best BANG for your buck literally
It works amazingly pushing my two 12" Skar EVL's which are rated for 2400w rms combined and this amp pushes 3000w rms no problem, rattles my entire tahoe!!!
Reviewed in the United States on June 11, 2026 by Michael

Good electric to feed it
Nice ass amp , never shut down not one time , need good power to run properly, I love the amp
Reviewed in the United States on June 14, 2026 by Curtis Graham

Chinese amps
These are not actually produced by sundown. They are made overseas. They are way too sensitive and barely capable of putting out watts without clipping. Positive side is that they do stay cool. But not worth the risk of damaging your system.
Reviewed in the United States on August 24, 2023 by Greg Heminger

BUY ITTTT
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

LOVE IT!
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.

Not reliable.
They burn easily. The remote cable is garbage
Reviewed in the United States on December 12, 2023 by Edgar

Did work great…
I bought this amp in July of last year and it WAS awesome. But today (Feb 25) I turned on the stereo and it immediately went into protect mode and jumped back and forth from power to clip to protect. The amplifier gave me seven months of good loud music, so I’m leaving 4 stars.
Reviewed in the United States on February 26, 2024 by Chris H.

So far works great
Only had it for a few days and so far it's a great amp no issues or complaints
Reviewed in the United States on April 23, 2026 by Antonio lopez
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