Skip to content

SFB-1800.5 Sundown Audio SFB Series 5-Channel Full Range Amplifier (300Wx4 / 500Wx1 RMS 2 OHM)

by Sundown
Sold out
Original price $599.99
Original price $599.99 - Original price $599.99
Original price $599.99
Current price $499.99
$499.99 - $499.99
Current price $499.99
🚚 Order within the next 2 hours, 15 minutes for delivery by 05 Oct, 2025.
Availability:
Out of stock

SFB 1800.5 5-Channel Full Range Amplifier

  

      • 1,000 x 1 @ 1 ohm RMS (Ch. 5)
      • 300 x 4 (Ch. 1-4) + 500 x 1(Ch. 5) @ 2 ohms RMS
      • 200 x 4 (Ch. 1-4) + 250 x 1(Ch. 5) @ 4 ohms RMS
      • 5-channel full-range amplifier
      • Variable 12dB low pass filter: 50Hz – 6kHz (Ch. 1-4)
      • Variable 12dB low pass filter: 50Hz – 20kHz (Ch. 5)
      • Variable 12dB high pass filter: 15Hz – 6kHz  (Ch. 1-4)
      • Variable 12dB high pass filter: 50Hz – 1kHz (Ch. 5)
      • 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

      Full Bridge for your full system! The “Brazilian Style” SFB packs a powerful punch in a compact size, with a bass channel stable down to 1 ohm.  Use the SFB to wire several speakers together on every channel - an ideal amp for a PA mid/high speaker array, a large marine system, or your favorite set of separates, plus a dedicated powerhouse for a sub channel. If you are looking for raw power on a budget –  look no further!

       

      Specifications

      • Frequency Response: 10HZ-20KHZ(-3dB)
      • Input Impedance: 56k ohms
      • Input Sensitivity 5V Max
      • S/N Ratio 100dB
      • Minimum Supply Voltage: 9VDC
      • Maximum Supply Voltage: 16VDC
      • Working Voltage 10.5v-15.5v
      • Recommended Fuse Rating 150A
      • Dimensions 8.86″ x 11.81″ x 2.70″ 
      Specifications
      Documentation
      Product Manual
      Amplifier Type
      5-channel full-range amplifier
      1 Ohm RMS Power
      1,000 x 1 @ 1 ohm RMS (Ch. 5)
      2 Ohm RMS Power
      300 x 4 (Ch. 1-4) + 500 x 1(Ch. 5) @ 2 ohms RMS
      4 Ohm RMS Power
      200 x 4 (Ch. 1-4) + 250 x 1(Ch. 5) @ 4 ohms RMS
      Operation Voltage
      10.5v-15.5v
      Recommended Fuse
      150A
      Signal / Noise Ratio
      100dB
      Variable 12dB High Pass Filters
      15Hz – 6kHz (Ch. 1-4) 50Hz – 1kHz (Ch. 5)
      Variable 12dB Low Pass Filters
      50Hz – 6kHz (Ch. 1-4) 50Hz – 20kHz (Ch. 5)