





Sundown Audio SFB-200.4 4-Channel Amplifier
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Subwoofer Wiring Diagram
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- Power — 200W x 4 @ 1Ω, 125W x 4 @ 2Ω, 75W x 4 @ 4Ω RMS
- Channels — 4-channel full-range, stable to 1 ohm per channel
- Low Pass Filter — Variable 12dB, 50Hz – 6kHz
- High Pass Filter — Variable 12dB, 15Hz – 6kHz
- Bass Boost — Variable 12dB @ 50Hz
This Listing Includes: (1) Sundown Audio SFB-200.4 4-Channel Amplifier
The "Brazilian Style" SFB-200.4 packs a powerful punch in a compact size, delivering 200 watts x 4 at 1 ohm, 125 watts x 4 at 2 ohms, and 75 watts x 4 at 4 ohms RMS. Stable down to 1 ohm per channel, it lets you wire several speakers together on every channel — ideal for a PA mid/high speaker array, a large marine system, or a set of separates. Variable 12dB low pass (50Hz – 6kHz) and high pass (15Hz – 6kHz) filters plus a variable 12dB bass boost at 50Hz provide full tuning control, with power, protection, and clipping indicators included. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Features
- 4-channel full-range, stable to 1 ohm per channel
- Variable 12dB low pass (50Hz – 6kHz) and high pass (15Hz – 6kHz) filters
- Variable 12dB bass boost @ 50Hz
- Thermal, voltage, speaker short, and DC-offset protection circuitry
- Optional wired remote control with clipping indicator
Specifications
| RMS @ 1Ω | 200W x 4 |
| RMS @ 2Ω | 125W x 4 |
| RMS @ 4Ω | 75W x 4 |
| Low Pass Filter | 50Hz – 6kHz, variable 12dB |
| High Pass Filter | 15Hz – 6kHz, variable 12dB |
| Bass Boost | 12dB @ 50Hz, variable |


