• Powerful Full-Range Output: Delivers up to 4000W RMS across 4 channels for clean, consistent performance on full-range, mid-bass, or pro audio setups.
• Compact & Efficient Design: Class-D technology with a 4-layer PCB and smart cooling fan provides high efficiency (97%) while keeping heat under control.
• Complete Audio Control: Adjustable HPF, LPF, and Full crossover with 0–12dB bass boost at 50Hz lets you fine-tune your sound to perfection.
• Built for Reliability: Features Power, Protect, and Clip LED indicators, 0GA terminals, and multiple protection circuits for stable long-term use.
• Easy Installation: Compact chassis (13.4" x 5.5" x 2.4") fits tight spaces while delivering massive power and clarity for any audio system.

4-Channel Full-Range Class-D Amplifier 4000W RMS DS18 FRP-4K4 RED

This listing includes:

• (1) DS18 FRP-4K4 4-Channel Full-Range Amplifier


• User Manual

The DS18 FRP-4K4 Compact 4-Channel Full-Range Class-D Amplifier packs serious power in a sleek, space-saving design. Engineered for performance and flexibility, this amp delivers up to 4000W RMS with precision control over your entire sound system.

Key Features:

• RMS Power: 4 x 400W @ 4 Ohms, 4 x 700W @ 2 Ohms, 4 x 1000W @ 1 Ohms


• Bridged Power: 2 x 1200W @ 4 Ohms - 2 x 1800W @ 2 Ohms


• Selectable HPF / LPF / Full crossover with 0 - 12dB Bass Boost @ 50Hz


• Smart cooling fan with 4-layer PCB design for reliable performance


• Power, Protect, and Clip LED indicators for real-time system status

Specifications:

• Frequency Response: 10Hz - 20KHz


• Signal to Noise Ratio: 90dB


• Efficiency @ 4 Ohms : 97%


• THD: 0.5%


• Damping Factor: 90


• Input Impedance: 10K Ohm


• Crossover Range: 10Hz - 2KHz


• Input Voltage: 400mV - 6V


• Fuse Size (Recommended): 500A


• Cooling: Smart Cooling Fan

Dimensions:

• Length: 13.4 in


• Width: 5.5 in


• Height: 2.4 in


• Weight: 7 lbs (3.2 kg)

High-performance audio builds that demand maximum output in a compact footprint. Ideal for cars, motorcycles, and custom sound setups needing clean, reliable full-range power.