Sundown Audio SIA-3500D v2 Full-Range Mono Amplifier

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SKU: SUN-SIAV23500
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Regular price $424.99 USD
Massive Power & Clarity

Massive Power & Clarity

Superior Performance

Superior Performance

Advanced Technology

Advanced Technology

Premium Quality

Premium Quality

Delivering tremendous power at 1, 2, or 4 ohms, the Sundown SIA amps are built with power and stability at their core. These full-bridge amplifiers feature a heavy heatsink for outstanding thermal management, while the three-speed Smart Cooling fan and advanced power supply design protects the amplifier from overheating and distorted output. Made to bang all day long, by the world champions of bass!

Specifications:

  • 3,500 x 1 @ 1 ohm RMS
  • 3,300 x 1 @ 2 ohms RMS
  • 2,600 x 1 @ 4 ohms RMS
  • Variable 12dB low pass filter: 40Hz-20kHz
  • Variable 12dB high pass filter: 10Hz-1kHz
  • Variable 12dB Bass Boost @ 50Hz
  • Power, protection & clipping indicators included
  • Thermal, voltage, speaker short, and dc-offset protection circuitry
  • Advanced 3-speed fan design
  • Subsonic filter
  • Intelligent full bridge design
  • Wired remote control with clipping indicator included
  • nput Sensitivity: 5V Max
  • Single Noise Ratio: 108dB
  • Working Voltage: 10.5V – 15.5V DC
  • Recommended Fuse Rating: 300A

Dimensions: 2.68” x 8.86” x 10.43”

Specification Details
Model SIA‑3500D v2
UPC 810111132794
Channels Mono (1‑channel)
Power Output (RMS @ 14.4 V) 3,500 W @ 1 Ω3,300 W @ 2 Ω2,600 W @ 4 Ω
Low‑Pass Filter Variable 12 dB/oct • 40 Hz – 20 kHz
High‑Pass Filter Variable 12 dB/oct • 10 Hz – 1 kHz
Bass Boost Variable 12 dB @ 50 Hz
Input Sensitivity Up to 5 V max
Signal-to-Noise Ratio 108 dB
Operating Voltage 10.5 – 15.5 V DC
Recommended Fuse 300 A
Protection Features Thermal, voltage, short, DC‑offset
Cooling System Heavy heatsink + smart 3‑speed fan
Subsonic Filter Yes
Remote Control Wired remote with clipping indicator included
Dimensions (H × W × D) 2.68″ × 8.86″ × 10.43″

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

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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.

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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.

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

Sundown Audio SIA-3500D v2 Full-Range Mono Amplifier
Don’t Just Hear the Music—Feel It

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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.

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

s**a

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bmtmanuel
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"Received them and they work as i expected"

bmtmanuel

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**l
★ ★ ★ ★ ★

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

**l

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M**S
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"Muy buen producto de escucha muy bien"

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