The Down4Sound JP34AB is a rare and highly capable Class AB 4-channel amplifier built for clean sound, strong output, and dependable cooling. With clip indicators and high-flow fans, it’s designed to deliver stable performance when you want Class AB clarity with real power.

Power Ratings (RMS)

• 200W x 4 @ 2 OHM (14.4V)
• 134W x 4 @ 4 OHM (14.4V)
• 450W x 2 bridged @ 4 OHM

Tuning & Specs

• Frequency Response: 10Hz – 45KHz
• High Pass: 20Hz – 800Hz (x1), 200Hz – 8KHz (x10)
• Low Pass: 50Hz – 800Hz (x1), 500Hz – 8KHz (x10)
• Input Sensitivity: 6V – 0.2V
• Signal-to-Noise Ratio: 100dB
• THD @ 4 OHM: < 0.1%
• Operating Voltage: 9V – 15.5V
• Fuse Rating: 100A

Connections & Dimensions

• Power/Ground: 0-gauge input
• Speaker input: up to 12-gauge
• Tiffany-style RCA connection
• Dimensions: 19.68 inch × 7.4 inch × 2.24 inch

The JP34AB is built for people who want Class AB sound quality with serious output and modern tuning control.