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Description

Sundown Audio SFB-1000D

Sundown Audio SFB-1000D is a high-power mono Class D amplifier engineered for subwoofer applications, delivering deep, clean, and punchy bass with minimal heat. Its compact and durable chassis allows for easy installation in tight spaces while ensuring reliable performance under heavy load. The amplifier features adjustable low-pass and subsonic filters for precise bass tuning, full protection circuitry including thermal, over/under-voltage, short-circuit, and DC-offset protection, along with LED status indicators, making it perfect for dedicated subwoofer setups or full-system enhancements.


Features

  • 1,000 @ 1 ohms RMS
  • 850 @ 2 ohms RMS
  • 500 @ 4 ohms RMS
  • Variable 12dB low pass filter: 80HZ – 20kHZ
  • Variable 12dB high pass filter: 15HZ – 1kHZ
  • Variable 12dB Bass Boost @ 50Hz 0-9dB
  • Power, protection & clipping indicators included
  • Thermal, voltage, speaker short, and dc-offset protection circuitry
  • Wired remote control with clipping indicator

About The Product

The “Brazilian Style” SFB packs a powerful punch in a compact size. The flexible SFB (Sundown Full Bridge)packs a powerful punch in a compact size! Stable down to 1 ohm, the full-range SFB can be used as a subwoofer amp, or as an ideal power source for an array of P.A. speakers. If you are looking for raw power on a budget, look no further than the SFB!

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Questions and Answers

Q1: What is the power output of the SFB-1000D?
A1:
• 1000 W × 1 @ 2 Ω
• 600 W × 1 @ 4 Ω
Q2: What amplifier class/design does it use?
A2: The SFB-1000D is a mono Class D amplifier, designed for high-efficiency, strong bass output, and minimal heat generation.
Q3: Does it have adjustable filters for tuning?
A3: Yes, it includes a variable low-pass filter (40–250 Hz) and a subsonic filter (10–40 Hz) for precise subwoofer control.
Q4: What protection features are included?
A4: It has thermal protection, over/under-voltage protection, short-circuit protection, DC-offset protection, and LED indicators for safe operation.
Q5: What are the installation and electrical specifications?
A5:
• Input Sensitivity: up to ~6 V
• Signal-to-Noise Ratio: 92 dB
• Operating Voltage: 10.5–15.5 V DC
• Compact, durable heat-sink chassis for easy installation

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