SUNDOWN AUDIO SFB-500.4 4 Channel Amplifier

In stock
SKU: SUN-SFBV25004
(0)
Brand New with Manufacturer Warranty
Authorized Dealer
Free Shipping & Easy Returns
Secure Checkout
Regular price $319.99 USD
Regular price Sale $399.99 USD Sale price $319.99 USD
Massive Power & Clarity

Massive Power & Clarity

Superior Performance

Superior Performance

Advanced Technology

Advanced Technology

Premium Quality

Premium Quality

Discover the Sundown Audio SFB Full Bridge amplifiers – compact Brazilian-style powerhouses delivering raw performance at an unbeatable price. Stable at 1 Ohm per channel, perfect for PA mid/high arrays, marine systems, or multi-speaker setups. 

Features:

  • High Efficiency Digital Multi-Channel Design
  • 4-channel full-range amplifier
  • Variable 12dB low pass filter: 50Hz – 6kHz
  • Variable 12dB high pass filter: 15Hz – 6kHz
  • Variable 12dB Bass Boost @ 50Hz
  • Power, protection & clipping indicators included
  • Thermal, voltage, speaker short, and dc-offset protection circuitry
  • Optional wired remote control with clipping indicator

Specifications:

Amplifier Type: 4-channel full-range amplifier

RMS Power @ 1Ω: 500W × 4

RMS Power @ 2Ω: 300W × 4

RMS Power @ 4Ω: 200W × 4

Operation Voltage: 10.5V – 15.5V

Recommended Fuse: 180A

Signal-to-Noise Ratio: 100dB

High-Pass Filter (12dB): 15Hz – 6kHz

Low-Pass Filter (12dB): 50Hz – 6kHz

Dimensions 8.25″ x 9.75″ x 2.75"

UPC: 810111132947

Free shipping in the 48 U.S. states. Orders placed before 11 PM ET process next business day; shipping takes 5–8 days. Tracking info is emailed once shipped. To cancel, contact info@eliteautogear.com within 24 hours. Processed orders can’t be canceled. Thank you for choosing Elite Auto Gear!

Customer Support : 9:00 am to 5:00 pm 

Address: 13446 Alondra Boulevard, Cerritos ,California 90703, United States

Email: info@eliteautogear.com

Phone: (877)-215-8187

From Boats to Jeeps to UTVs

Built to Be Heard Everywhere You Ride

Power That Dominates

Pro-grade audio engineering delivers crystal-clear highs and powerful bass that cuts through any environment. Built for the toughest rides and loudest adventures.

Built for Tough Rides

Engineered to withstand extreme conditions with rugged construction and weatherproof design.

Built for Power & Durability

Premium materials and advanced engineering ensure long-lasting performance in any environment.

Immersive Sound & Lighting

Experience rich, immersive audio with synchronized lighting effects that enhance every adventure.

SUNDOWN AUDIO SFB-500.4 4 Channel Amplifier
Don’t Just Hear the Music—Feel It

Upgrade Your Ride With Pro-Level Sound

From waves to trails, Elite Auto Gear delivers gear that’s louder, cleaner, and tougher than stock. Get the power your setup deserves today.
Shop the Gear Now

What Our Customers Are Saying

⭐ 4.9 stars reviews, Loved by Thousands

M**I
★ ★ ★ ★ ★

"Great packaging and super loud speakers would recommend buying and got delivered fast"

M**I

Verified Verified Customer
B.
★ ★ ★ ★ ★

"Installed Apocalypse 6.5 mids, DS18 tweeters, and Orion 6x9s in my 2014 Dodge Challenger RT — amazing sound! Quality and materials are top-notch. Definitely buying from them again."

B.

Verified Verified Customer
werita&chukito3
★ ★ ★ ★ ★

"10 de 10 con el envío super rápido espero que si tengan buen sonido estan muy bonitas"

werita&chukito3

Verified Verified Customer
★ ★ ★ ★ ★

"Definitely a must can't wait to install all my speakers I would buy from them again I got the apocalypse 6.5 mid range ds18 tweeters 3.5 full range and Orion 6x9 mid range"

Verified Verified Customer
★ ★ ★ ★ ★

"Me gustó mucho buena calidad Y suena recio como yo pensaba si se las recomiendo buen sonido"

Verified Verified Customer
B.
★ ★ ★ ★ ★

"The speakers were loud and good"

B.

Verified Verified Customer
obs_brycen
★ ★ ★ ★ ★

"Great product but it only comes with one tweeter so make sure you buy 2"

obs_brycen

Verified Verified Customer
s**a
★ ★ ★ ★ ★

"Súper buena calidad, buen sonido de voz, y llega en buenas condiciones"

s**a

Verified Verified Customer
bmtmanuel
★ ★ ★ ★ ★

"Received them and they work as i expected"

bmtmanuel

Verified Verified Customer
**l
★ ★ ★ ★ ★

"They got here before estimated arrival and are in amazing condition"

**l

Verified Verified Customer
M**S
★ ★ ★ ★ ★

"Muy buen producto de escucha muy bien"

M**S

Verified Verified Customer