This is a used product that has been professionally rebuilt here at Sundown Audio. It comes with a non-doa warranty only. That means they are guaranteed to work when you receive it but no further warranty afterwards. Let us know within 24 hours of delivery if this product has an issue. We will not warranty any used subwoofer after that time. These potentially have scratches & scuffs on the magnets/motors and will not be in new condition.

• 1,000 x 4 @ 1 ohm RMS
• 590 x 4 @ 2 ohms RMS
• 350 x 4 @ 4 ohms RMS
• 4-channel full-range amplifier
• Variable 12dB low pass filter: 50Hz – 6kHz
• Variable 12dB high pass filter: 15Hz – 6kHz
• 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

Introducing the Sundown Full Bridge line of amplifiers! The “Brazilian Style” SFB packs a powerful punch in a compact size, stable down to 1 ohm per channel.  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. If you are looking for raw power on a budget –  look no further!

Product Manual