Sundown Audio


(31 reviews) Write a Review
  • Sundown Audio SUNDOWN AUDIO SFB-2000D
  • Sundown Audio SUNDOWN AUDIO SFB-2000D
  • Sundown Audio SUNDOWN AUDIO SFB-2000D
  • Sundown Audio SUNDOWN AUDIO SFB-2000D
  • Sundown Audio SUNDOWN AUDIO SFB-2000D
MSRP: $309.99
— You save $2.00

Out of stock


The new SFB series is being kicked off with a 2000-watt mono. This is a "full range" mono ideal for "PA" type speakers as well as standard bass applications. 

Comes with remote bass knob with clip light

• 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 2000W
2 ohm Mono RMS 1500W
4 ohm Mono RMS 950W
Recommended Fuse Rating 180A
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 7.50″ x 2.50″
View AllClose

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
View AllClose

31 Reviews

  • 5

    Smfh 2000d amp

    Posted by Nick on May 01, 2022

    Such a small package with some BIG POWER, first received I thought my box was empty, unboxed and hooked it up bass is so much more full and LOUD!

  • 5


    Posted by Jarrett on Mar 21, 2022

    Nice power

  • 5

    This amp was amazing I was pushing the 3300 w hifonics Brutus at 2 ohms and believe me that amp was pushing really hard SFb 2000.D mono block at 2 ohms I'm just running one 12" American Bass XR and believe me this tiny little amp made it hit so clean

    Posted by Ruben Flores on Mar 19, 2022

    For the price of this sfb 2000.D it's worth the money I should have done this before I got the hifonics

  • 5

    Sfb 2000

    Posted by Mark on Mar 09, 2022

    Just what I expected awesome amp fast delivery thanks down4sound!

  • 1

    Don’t work

    Posted by Stacy on Feb 14, 2022

    I even contacted the company with the blue light on it was sold to me not working.

  • 5

    Sundown Sfb-2000d

    Posted by Christopher Hutcheson on Feb 02, 2022

    Big power in a small package. Pushed my single Sundown x12 v2 great!!

  • 5

    Amazing amp and company

    Posted by brad on Oct 15, 2021

    Such an amazing amp. Puts out huge power for its size. Was shipped out super fast and showed up right away. Great company and product

  • 5

    Fast shipping

    Posted by Kenneth on Jun 03, 2021

    Haven't hooked it up yet but shipping is fast and quick.

  • 5

    Good amp!

    Posted by Brett Burke on Apr 06, 2021

    Great amp a lot of power for such a small sized amp only issue I ran into is that the amp went straight into protection mode sundown is currently doing warranty work on it

  • 3

    Sfb 2000

    Posted by Jose Coronado on Mar 25, 2021

    Beast of an amplifier would have been even better if it lasted more than 2 days. The protection mode on this is great though looked into this amp and I'm glad to find that I'm not the only one with this issue. Did I mention it's made in china?

View AllClose