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Sundown Audio SFB-1000D (A-SFBV21000)

1000W RMS Class D SFB Series Monoblock Car Amplifier

Limited time!
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• 500 watts x 1 channel @ 4 ohm
• 850 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Learn more about the sfbv21000
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List price $287.99
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$239.99

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Current Promotions (5 offers)


This offer cannot be combined with any other coupons or offers.

Sundown Audio SFB-1000D (A-SFBV21000)

15% off


Priced separately $319 98

Promo Savings of $12 00

Total price:

$307 98

This offer cannot be combined with any other coupons or offers.

Sundown Audio SFB-1000D (A-SFBV21000)

20% off


Priced separately $289 98

Promo Savings of $10 00

Total price:

$279 98

This offer cannot be combined with any other coupons or offers.

Sundown Audio SFB-1000D (A-SFBV21000)

20% off


Priced separately $349 98

Promo Savings of $22 00

Total price:

$327 98

This offer cannot be combined with any other coupons or offers.

Sundown Audio SFB-1000D (A-SFBV21000)

30% off


Priced separately $349 98

Promo Savings of $33 00

Total price:

$316 98

This offer cannot be combined with any other coupons or offers.

Sundown Audio SFB-1000D (A-SFBV21000)

30% off


Priced separately $439 98

Promo Savings of $60 00

Total price:

$379 98

Description


Sundown Audio brand icon

Authorized dealer


Sundown Audio SFB-1000D

The “Brazilian Style” SFB packs a powerful punch in a compact size. The flexible SFB (Sundown Full Bridge)packs a powerful punch in a compact size! Stable down to 1 ohm, the full-range SFB can be used as a subwoofer amp, or as an ideal power source for an array of P.A. speakers. If you are looking for raw power on a budget, look no further than the SFB!


Product Details:

  • SFB Series Class D 1 ohm Stable Monoblock Amplifier
  • RMS Power Rating:
    • 4 ohm: 500 watts x 1 channel
    • 2 ohm: 850 watts x 1 channel
    • 1 ohm: 1000 watts x 1 channel
  • Total RMS power output: 1000 watts
  • Power, protection & clipping indicators included
  • Thermal, voltage, speaker short, and dc-offset protection circuitry
  • Wired remote control with clipping indicator included
  • Input sensitivity: 0 - 5 volts
  • Signal to Noise Ratio: 100 dB
  • Variable low-pass filter: 80 - 20000 Hz
  • Variable high-pass filter: 15 - 1000 Hz
  • Variable Bass Boost: 0 - 9 dB
  • Fuse Rating: 100A
  • 4 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 7.25" L x 2.50" W x 5.75" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: A-SFBV21000


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Specifications & Details


Key Features
Amplifier Key Features
Bass Boost
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
500 watts x 1 channel
RMS Power @ 2 ohms
850 watts x 1 channel
RMS Power @ 1 ohm
1000 watts x 1 channel
Amplifier Specifications
Series
SFB Series
Amplifier Class
D
Number of Channels
1 - Mono
Total RMS Power Output
1000 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
1 ohm
Speaker Level Inputs
Yes
Preamp Outputs
Mono output
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
15 - 1000 Hz
Low-Pass Crossover Frequency
80 - 20000 Hz
Signal-to-Noise Ratio
100 dB
Bass Boost
0 - 9 dB
Remote bass/level controller
No
Total Fuse Rating
100
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
0 - 5 volts
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

A-SFBV21000

Weight:

6.00lbs

Internal SKU:

sfbv21000

Internal Product ID:

206362

Customer Ratings & Reviews


Sundown Audio SFB-1000D (A-SFBV21000) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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drop the bass, how low can u go"

This amp hit hard and drop some serious bass lows. How high can this small amp go, drop the mic type ishhhh! the rms say 1000 at bench test 1415 rms, like it's pushing 2 12's Memphis 1600 watt with no problem @ 1ohn. I brought another one for my Camaro z28 rocking 2 12's pioneer 1500-watt subs.

By Ernest on July 8, 2025




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