Description
Sundown Audio SFB-500.4
Sundown Audio SFB-500.4 is a compact 4-channel full-range Class D amplifier designed for clean sound, high efficiency, and reliable daily performance. It delivers strong power for door speakers, components, and coaxials while maintaining low heat through its efficient Class D design. The amp supports multi-speaker builds, active setups, and factory system upgrades, and includes variable HPF/LPF filters, high-quality internal components, and full protection circuitry (thermal, overload, voltage, and short-circuit) along with status LEDs for easy tuning and system monitoring.
Specifications
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Product Sku
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SFB-500.4 |
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Amplifier Type
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1 Ohm RMS Power
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2 Ohm RMS Power
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4 Ohm RMS Power
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Operation Voltage
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Recommended Fuse
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Signal / Noise Ratio
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Variable 12dB High Pass Filters
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Variable 12dB Low Pass Filters
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Length
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Width
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Height
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Features
- 500 x 4 @ 1 ohm RMS
- 300 x 4 @ 2 ohms RMS
- 200 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
About The Product
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!
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