The Down4Sound JP454 is a high-output Class D 4-channel amplifier built for clean power, detailed crossover control, and dependable protection. With clip IN/OUT indicators and an aluminum remote, it’s designed to keep your system loud and controlled.

Power Ratings (RMS)

• 888W x 4 @ 2 OHM (14.4V)
• 454W x 4 @ 4 OHM (14.4V)
• 1645W x 2 bridged @ 4 OHM

Tuning & Features

• Frequency Response: 10Hz – 21KHz
• Signal-to-Noise Ratio: 94dB
• Damping Factor: 170
• Input Sensitivity: 6V – 0.2V
• CH1/2 & CH3/4 HPF: 20Hz – 800Hz (x1), 200Hz – 8KHz (x10)
• CH1/2 & CH3/4 LPF: 50Hz – 800Hz (x1), 500Hz – 8KHz (x10)
• Bandpass capable
• Clip IN (red) and Clip OUT thresholds
• Aluminum remote with voltage/temp, thermal, and clipping indicators
• Working Voltage: 9V – 15.5V
• Inputs: 4 x 0-gauge
• Fusing: 2 x 150A

Dimensions

• 15.74 inch × 9.37 inch × 2.71 inch

The JP454 is made for serious 4-channel power with the tools to tune and protect your system.