Sundown Audio


(28 reviews) Write a Review
MSRP: $209.99
— You save $55.00

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Sundown Audio SFB-1000D | 1000W FULL BRIDGE Amplifier:

The Sundown Audio SFB1000 color is black, this amplifier includes a Bassknob with built in cliplight. This full bridge compact amplifier is very compact, works well in any in vehicle application! We are an Authorized Sundown Audio Dealer, your Sundown SFB 1000 Carries a FULL 2 year Sundown Audio WARRANTY.

SFB 1000D Features:

  • Digital Class-D Mono Block Amplifier
  • Dual MOS-FET PWM Power Supply
  • 1 Ohm Stable Load
  • 12 dB/Octave – Variable Low Pass Filter
  • 12 dB/Octave – Variable High Pass Filter
  • 9 dB/Octave – Variable Bass Boost
  • 4 Way Protection Circuit (Thermal, Voltage, Speaker Short, DC Offset)
  • Wired Remote Control with Clipping Indicator

SFB 10000D Specifications:

  • 1 ohm Mono RMS 1000W
  • 2 ohm Mono RMS 850W
  • 4 ohm Mono RMS 500W
  • Recommended Fuse Rating 100A
  • Low Pass Filter (Variable) 80Hz-20kHz
  • High Pass Filter (Variable) 15Hz-1kHz
  • Bass Boost @ 50Hz 0-12dB
  • Input Sensitivity 5V Max
  • S/N Ratio 100dB
  • Working Voltage 10.5v-15.5v
  • Dimensions 7.25" x 5.75" x 2.50"


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Warranty Information

Warranty Information

Sundown Audio requires us to send customers with equipment problems directly to them for all warranty and non-warranty claims. Please follow their proceedures..


Sundown Audio RMA form:

Sundown Audio Product Warranty Information:


Sundown Audio - Hours of Operation

Monday 9am - 5pm EST
Tuesday 9am - 5pm EST
Wednesday 9am - 5pm EST
Thursday 9am - 5pm EST
Friday 9am - 5pm EST
Saturday Closed
Sunday Closed
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28 Reviews

  • 5

    SFB 1000D

    Posted by Jason on Nov 19, 2021

    This little amp exceeded my expectations in every way! I’m using it to power a single SA-12 in sealed truck enclosure. This thing has tons of power and pushes this sub hard without even breaking a sweat. The amp is barely warm after an hour of heavy use. The clip light is another awesome feature I would never do without now. I cannot say enough good things about this Sundown amp!

  • 5

    Good for single SA12

    Posted by Dave N on Aug 15, 2021

    Not sure if I have my sub wired at 1 or 4 ohms but she slams. Wants more power than amp can handle, but like I said it might be wired at 4 ohms so that would make sense. All in all, good and reliable for the money and I’m glad it came with a knob that shows when clipping, that saves me cause it’s hard to hear sometimes.

  • 5

    Sfb 1000

    Posted by Juan on Aug 13, 2021

    I just hooked up sfb 1k and wow wired at 1 ohm on 2 deaf bonce Machete fights and D4S pro fab box and that amps is pushing them easy i saw amp dyno on sfb 1k and was blown away 1410 rms very happy thanks D4S and jp

  • 5

    Sfb 1000

    Posted by Juan Roque on Aug 09, 2021

    I ordered the sfb 1000.1 on the 5th of August and received on Saturday the 7th and im in Pennsylvania great job guys the amp is compact and powerful very happy i recommend for sure thanks d4s and jp i will continue to do business with you guys thanks again

  • 5

    Sfb amp

    Posted by David on Aug 04, 2021

    I've had this in for just a month or so. However it is hooked up to a single dual 4 12", so it's only running at 2 ohm. I can run all day long cranked, and it's barely warm to the touch. Haven't had any issues yet. Not shutting down or going into protect mode. It just keeps slamming. I'm satisfied with the amp, and definitely recommend it.

  • 5

    Power for cheap

    Posted by Sergio Cuevas on Jul 10, 2021

    I install plenty of mobile audio and this amp became my go to for entry level systems. My favorite feature is the clip light which helps first timers to save their new subs. I know that this is a cookie cutter Chinese mass produced design but it’s reliable and affordable.

  • 5

    Little beast

    Posted by Brett on Jul 01, 2021

    For a small application it delivered like a titan.

  • 5

    Good amp

    Posted by Jose Cerda on May 02, 2021

    Very impress with this amp sits perfectly under the back seat in my tahoe got them pushing 2 8 vd skar at 2 ohm

  • 5

    The best

    Posted by Kaylan W on Apr 30, 2021

    It's a sundown amp. What more is there to say? D4S is also now my go-to car audio supplier. Thank you D4S!

  • 5

    Worth it!

    Posted by Tre Jones on Apr 13, 2021

    I have recently purchased this and I must say I love it. It packs a punch for how small it really is and will virtually fit anywhere!

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