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Sundown Audio SFB‑13500D — 13,500W RMS @ 1Ω | Monoblock Class D | Small Footprint. Massive Power. Pure Sundown Violence.
The Sundown Audio SFB‑13500D is a straight‑up powerhouse — a compact Class‑D monoblock that delivers outlandish wattage, rock‑solid stability, and the kind of output that turns any build into a street‑terror. Pushing a brutal 13,800W RMS at 1Ω, this amp is engineered for serious competitors and high‑output bass addicts who demand maximum power in minimum space.
With a wide 10Hz–20kHz frequency response, dual MOS‑FET PWM power supply, and full variable filtering, the SFB‑13500D gives you total control over your sound. The included wired remote with clipping indicator keeps your system safe while letting you squeeze every last watt out of your setup.
Backed by Sundown’s 4‑way protection circuit (thermal, voltage, short, DC offset), this amp stays cool, stays clean, and stays in the fight — even when you’re pushing it to the edge.
This isn’t just an amplifier.
It’s a 13.5K watt sledgehammer built to dominate.
MAX OUTPUT @ 14.4V
- 1Ω: 13,800W RMS
- 2Ω: 8,120W RMS
- 4Ω: 5,550W RMS
FEATURES
- Digital Class‑D Monoblock Amplifier
- 1Ω Stable
- Dual MOS‑FET PWM Power Supply
- Variable Low‑Pass Filter (80Hz–20kHz)
- Variable High‑Pass Filter (15Hz–80Hz)
- Variable Bass Boost (0–12dB @ 50Hz)
-
4‑Way Protection Circuit
- Thermal
- Voltage
- Speaker Short
- DC Offset
- Wired Remote Control w/ Clipping Indicator
- Input Sensitivity: 200mV – 5V
- Signal‑to‑Noise Ratio: 100dB
- Working Voltage: 10.5V–15.5V
RECOMMENDED FUSING
- 400A × 3
DIMENSIONS
- 9.00" × 20.50" × 2.75"