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Description

Sundown Audio SFB-600D

Sundown Audio SFB-600D is a high-efficiency mono Class D car audio amplifier designed specifically for subwoofers, delivering deep, clean, and powerful bass without excessive heat. Its compact chassis allows easy installation in tight spaces while maintaining stable performance under high loads. The amp features variable low-pass and subsonic filters, advanced protection circuitry (thermal, over/under-voltage, short-circuit, and DC-offset), and LED indicators for monitoring, making it ideal for dedicated subwoofer setups or full-system enhancements.


Specifications

Specifications
Product Sku
SFB-600D
1 Ohm RMS Power
600 @ 1 ohms RMS
2 Ohm RMS Power
350 @ 2 ohms RMS
4 Ohm RMS Power
250 @ 4 ohms RMS
Operation Voltage
10.5v-15.5v
Recommended Fuse
60A
Signal / Noise Ratio
86DB
Variable 12dB High Pass Filters
15HZ – 1kHZ
Variable 12dB Low Pass Filters
80HZ – 20kHZ
Dimensions
Length
7.25″
Width
5.00″
Height
2.50″

 


Features

  • 600 @ 1 ohms RMS
  • 350 @ 2 ohms RMS
  • 250 @ 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 flexible SFB (Sundown Full Bridge) amplifiers pack 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 Series from Sundown Audio.

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Questions and Answers

Q1: What is the power output of the SFB-600D?
A1:
• 600 W × 1 @ 2 Ω
• 400 W × 1 @ 4 Ω
Q2: What amplifier class/design does it use?
A2: The SFB-600D is a mono Class D amplifier, offering high efficiency, low heat, and strong bass output for subwoofer applications.
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), allowing precise subwoofer tuning.
Q4: What protection features are included?
A4: It features 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 heat-sink chassis designed for tight installation spaces

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