SIA-3500D SMART 3500W Wide Range Class D Amplifier

Sundown AudioSKU: A-SIAV23500

Sale price$424.99
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Sundown Audio SIA 3500.1D is Sundown Audio's latest and greatest intelligent full bridge amplifier, the sundown SIA 3500 is power supply is built stronger, heatsink is heavier, and the SIA 3500 features intelligent low voltage technology protecting the amplifier from typical full bridge malfunction.

Smart Cooler (Fan powered by temperature or audio, with 3 speeds)


  • Digital Class-D Mono Block Amplifier
  • Dual MOS-FET PWM Power Supply
  • 1 Ohm Stable Load
  • 12 dB/Octave – Variable Low Pass Filter
  • 0 to 12dB – Variable Bass Boost
  • 4 Way Protection Circuit (Thermal Voltage Speaker short and DC Offset)
  • Wired Remote Control with Clipping Indicator


  • Tested at 14.4 Volts
  • 1Ohm Mono: 3500W RMS
  • 2Ohm Mono: 3000W RMS
  • 4Ohm Mono: 1750W RMS
  • Recommended Fuse Rating: 300A
  • Low Pass Filter: 40Hz – 20kHz
  • High Pass Filter: 10Hz – 1kHz
  • Level (Bass Boost): 0 – 12dB (50Hz)
  • Input Sensitivity: 5V Max
  • Single Noise Ratio: 108dB
  • Working Voltage: 10.5V – 15.5V DC
  • Dimensions (Inches): 8.86” x 7.28” x 2.44”


Product Brand Sundown Audio
RMS Power 3500W  

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