Sundown Audio SFB-1800.5 5-Channel Amplifier
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Subwoofer Wiring Diagram
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- Ch. 1–4 — 200W x 4 @ 4Ω, 300W x 4 @ 2Ω
- Ch. 5 (Sub) — 250W @ 4Ω, 500W @ 2Ω, 1,000W @ 1Ω
- Class — 5-channel full-range, bass channel stable to 1 ohm
- Filters — Variable 12dB LPF/HPF per channel, bass boost @ 50Hz
- Protection — Thermal, voltage, speaker short, DC-offset
This Listing Includes: (1) Sundown Audio SFB-1800.5 5-Channel Amplifier
The "Brazilian Style" SFB-1800.5 powers a full system from one compact chassis, with four full-range channels rated 200 watts x 4 (4 ohms) or 300 watts x 4 (2 ohms) plus a bass channel rated 250 watts (4 ohms), 500 watts (2 ohms), or 1,000 watts (1 ohm) and stable down to 1 ohm. The full-range channels offer variable 12dB low-pass (50Hz–6kHz) and high-pass (15Hz–6kHz) filters, while channel 5 adds variable 12dB low-pass (50Hz–20kHz) and high-pass (50Hz–1kHz) filters and a bass boost at 50Hz. Power, protection, and clipping indicators and full protection circuitry keep it running, with an optional wired remote. Wire several speakers per channel for a PA array, marine system, or separates plus a dedicated sub. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Features
- "Brazilian Style" full-bridge design with bass channel stable to 1 ohm
- Ch. 1–4 variable 12dB low-pass (50Hz–6kHz) and high-pass (15Hz–6kHz)
- Ch. 5 variable 12dB low-pass (50Hz–20kHz) and high-pass (50Hz–1kHz)
- Variable 12dB bass boost @ 50Hz
- Power, protection and clipping indicators with optional wired remote
Specifications
| Ch. 1–4 @ 4Ω / 2Ω | 200W / 300W x 4 |
| Ch. 5 @ 4Ω / 2Ω / 1Ω | 250W / 500W / 1,000W |
| Low-Pass Filter (Ch. 1–4) | 50Hz–6kHz (12dB) |
| Low-Pass Filter (Ch. 5) | 50Hz–20kHz (12dB) |
| High-Pass Filter (Ch. 1–4) | 15Hz–6kHz (12dB) |
| High-Pass Filter (Ch. 5) | 50Hz–1kHz (12dB) |
| Bass Boost | 12dB @ 50Hz |
| Protection | Thermal, voltage, speaker short, DC-offset |
