The Down4Sound JP77 is an all-in-one 7-channel amplifier designed to upgrade an entire system with one powerful chassis. With six full-range channels for mids/highs and a dedicated high-output bass channel, it’s built for clean sound, strong output, and flexible crossover control.

Power Ratings (RMS)

• 2000W x 1 @ 1 OHM (CH7)
• 190W x 6 + 1600W x 1 @ 2 OHM
• 120W x 6 + 1000W x 1 @ 4 OHM
• 350W x 3 bridged @ 4 OHM

Filtering & Specs

• Frequency Response: 10Hz – 24KHz (CH1–CH6), 10Hz – 250Hz (CH7)
• CH1/2 HPF: 20Hz – 800Hz
• CH3/4 HPF: 20Hz – 800Hz, LPF: 50Hz – 800Hz (bandpass capable)
• CH5/6 HPF: 20Hz – 800Hz, LPF: 50Hz – 800Hz (bandpass capable)
• CH7 Subsonic: 10Hz – 50Hz, LPF: 35Hz – 250Hz
• Input Sensitivity: 6V – 0.2V
• Signal-to-Noise Ratio: 80dB
• THD @ 4 OHM: 0.1%
• Fuse Rating: 330A
• Remote bass knob included
• Made in Korea

Dimensions

• 20.47 inch × 9.37 inch × 2.71 inch

The JP77 is ideal when you want one amplifier to run your whole system with serious bass power on tap.