MSRP: $209.99
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Sundown Audio SFB-1000D:

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 WARRANTY.

    • 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 Ciruit (Thermal, Voltage, Speaker Short, DC Offset)
    • Wired Remote Control with Clipping Indicator



    SPECIFICATIONS (Tested @ 14.4v)  
    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″

22 Reviews Hide Reviews Show Reviews

  • 5
    Great tiny amp

    Posted by jp on Dec 21st 2021

    This amp punches way above its weight.

  • 5
    Awesome AMP and Awesome Service

    Posted by Ken Mathews on Dec 8th 2021

    I want to say this AMP is well worth the investment. I am running it on 1 10" DVC 4 ohm Sundown Audio E series and man will this thing rock. I can't wait to add my other 10" and get the full potential out of this amp. As for the service what can I say they are outstanding had some problems on the set up of the AMP and they talked and helped me through everything. They are a great group of people and glad I ordered through this company.

  • 5

    Posted by Conway on Dec 3rd 2021

    I love these little amps. Other companies have been making similar amps but I will only buy sundown . Great power in a small package.

  • 5
    Shipping Sucks Not Very Reliable

    Posted by Ken Mathews on Dec 1st 2021

    I can't really review this product since I have been waiting 21 days and still have not received my amp. Not sure when or even if i will get this product. I had to file a claim and nothing is being done about this since it hasn't been 30 days. Once I get this or if I get this I will write about this until then watch out for the shipping, you don't know if you will get the product or not.

  • 5
    SFB 1000D

    Posted by Jason on Nov 19th 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 15th 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 13th 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 9th 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 4th 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.