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

Out of stock
SKU: SUN-SIAV23500
Massive Power & Clarity
Pro-grade output
Superior Performance
Built to dominate
Advanced Technology
Precision-built
Premium Build Quality
Designed to last
Regular price $424.99 USD
Brand New with Manufacturer Warranty
Authorized Dealer
Free Shipping & Easy Returns
Secure Checkout
Massive Power & Clarity
Pro-grade output
Superior Performance
Built to dominate
Advanced Technology
Precision-built
Premium Build Quality
Designed to last

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 is available within the 48 U.S. states. Orders placed before 11 PM ET are typically processed the next business day and arrive within 5–8 business days. Tracking information will be provided as soon as your order ships.

Need to make a change to your order? Contact us within 24 hours of purchase, and we'll be happy to help. Please note that orders already processed for shipment cannot be canceled.

1-Year Limited Warranty: As an authorized dealer, we provide a 1-year limited warranty covering manufacturer defects in materials and workmanship under normal use. The warranty does not cover physical damage, misuse, improper installation, or normal wear and tear.

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

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Common themes
Punchy bass · 12 Clean low end · 9 Easy install · 7 Great value · 6 Fast shipping · 11 Solid build · 8
M**I
★★★★★
Excellent Product Quality
"Great packaging and super loud speakers would recommend buying and got delivered fast"
B.
★★★★★
Excellent Product Quality
"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."
werita&chukito3
★★★★★
Excellent Product Quality
"10 de 10 con el envío super rápido espero que si tengan buen sonido estan muy bonitas"
★★★★★
Excellent Product Quality
"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"
★★★★★
Excellent Product Quality
"Me gustó mucho buena calidad Y suena recio como yo pensaba si se las recomiendo buen sonido"
B.
★★★★★
Excellent Product Quality
"The speakers were loud and good"
obs_brycen
★★★★★
Excellent Product Quality
"Great product but it only comes with one tweeter so make sure you buy 2"
s**a
★★★★★
Excellent Product Quality
"Súper buena calidad, buen sonido de voz, y llega en buenas condiciones"
bmtmanuel
★★★★★
Excellent Product Quality
"Received them and they work as i expected"
**l
★★★★★
Excellent Product Quality
"They got here before estimated arrival and are in amazing condition"
M**S
★★★★★
Excellent Product Quality
"Muy buen producto de escucha muy bien"
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