SIA-3500D v2 Sundown Audio SIA Series 3500D SMART Full Range Monoblock Amplifier 3500W RMS 1 or 2 OHM Stable
by Sundown
Save 17%
Original price
$509.99
Original price
$509.99
-
Original price
$509.99
Original price
$509.99
Current price
$424.99
$424.99
-
$424.99
Current price
$424.99
🚚 Order within the next 2 hours, 15 minutes for delivery by 10 Feb, 2026.
Availability:
in stock
SIA 3500W SMART Mono AMPLIFIER

- 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
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
- Input Sensitivity: 5V Max
- Single Noise Ratio: 108dB
- Working Voltage: 10.5V – 15.5V DC
- Recommended Fuse Rating: 300A
- Dimensions (HxWxL): 2.68” x 8.86” x 10.43”
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Documentation
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Product Manual
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Amplifier Type
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1 Ohm RMS Power
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2 Ohm RMS Power
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4 Ohm RMS Power
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Operation Voltage
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Recommended Fuse
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Signal / Noise Ratio
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Variable 12dB High Pass Filters
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Variable 12dB Low Pass Filters
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