Sundown Audio

SUNDOWN AUDIO SFB-200.4D ( 4 Ch Full Range Amplifier)

(8 reviews) Write a Review
MSRP: $311.99
— You save $52.00


SUNDOWN AUDIO SFB-200.4 - 800 WATT RMS  4 Channel Amplifier:

Sundown Audio SFB 200.4 Features:

  • High Efficiency Digital Multi-Channel Design
  • 12 dB/Octave – Variable Low Pass Filter
  • 12 dB/Octave – Variable High Pass Filter
  • Variable Bass Boost
  • Clipping Indicator
  • 4 gauge power and ground size inputs
  • 4 Way Protection Ciruit (Thermal, Voltage, Speaker Short, DC Offset)
  • Optional Wired Remote Control with Clipping Indicator

Sundown Audio SFB 200.4 SPECIFICATIONS (Tested @ 14.4v)

  • 1 ohm RMS 200W / CH
  • 2 ohm RMS 125W / CH
  • 4 ohm RMS 75W / CH
  • Recommended Fuse Rating 80A
  • Low Pass Filter (Variable) 50Hz-6kHz
  • High Pass Filter (Variable) 15Hz-6kHz
  • Bass Boost @ 50Hz 0-12dB
  • Input Sensitivity 5V Max
  • S/N Ratio 100dB
  • Working Voltage 10.5v-15.5v
  • Dimensions 7.25″ x 8.50″ 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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8 Reviews

  • 5

    Powerful Clean Sound

    Posted by Chris on Aug 05, 2022

    Plays on Sundown E series components/coaxials with ease. Very clean sound with variable crossovers. I like it more than the taramp200x4 it replaces

  • 5

    Sundown SFB 200.4

    Posted by Ben Harrison on Mar 04, 2022

    I have 2 of these amps now...1 running my four 6.5" Timpano mids and the other running my four Timpano super tweeters...sounds amazing! These amps are perfect and put out plenty of power and I like how each channel is 1 ohm stable.

  • 5

    Good clean power!

    Posted by Jason on Nov 19, 2021

    I picked up this amp to power four Rockford Fosgate 6.5” component speakers. I was previously using a Kicker amp on them but the amp was getting way too hot. This little SFB-200.4 is a powerhouse. Not only does it stay cool but it increased the sound quality of my speakers substantially. It’s night and day difference! I’m seriously impressed with Sundown products.

  • 5


    Posted by Julius Bond on Sep 11, 2021

    Good and strong yo will be happy good price

  • 5


    Posted by Jeffrey Skaggs on Apr 28, 2021

    Awesome amp running 2 of them. 1 running 4 fosgate 6.5 components and 1 running 2 6x9 fosgate great sound quality plenty of power

  • 5

    Great starter

    Posted by andy ostuni on Mar 17, 2021

    Perfect for a starter build ! Putting 70 RMS at 4ohm !

  • 5


    Posted by Sam on Jan 01, 2021

    This little amp is a beast sounds good and a dayum good price

  • 5

    Small but Big Bang

    Posted by Drjonez on Dec 22, 2020

    I got it running two 6x9 pioneer t class and dame it pushes them pretty good

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