The Down4Sound JP84 is a full-range Class D 4-channel amplifier designed to deliver clean power with flexible crossover control. Stable in 2 OHM stereo and 4 OHM bridged configurations, it’s built to handle real-world multi-speaker setups with reliable protection.

Power Ratings (RMS)

• 90W x 4 @ 4 OHM (14.4V)
• 120W x 4 @ 2 OHM (14.4V)
• Bridged output range: 180W – 284W x 2

Tuning & Specs

• Frequency Response: 10Hz – 40KHz
• High Pass: 20Hz – 800Hz (x1), 200Hz – 8KHz (x10)
• Low Pass: 50Hz – 800Hz (x1), 500Hz – 8KHz (x10)
• Signal-to-Noise Ratio: < 95dB
• Fuse Rating: 60A
• Operating Voltage: 9V – 16V
• Power input: 4-gauge
• Speaker input: 8-gauge

Dimensions

• 7.87 inch × 7.4 inch × 2.24 inch

The JP84 is a solid choice for clean, efficient 4-channel power with serious tuning flexibility.