The Down4Sound JP11 is a compact, high-performance monoblock amplifier built for daily drivers and entry-level demos. Designed for reliability and clean output, it delivers strong power in a small footprint for tight installs and clean builds.

Power Ratings (RMS)

• 580W x 1 @ 4 OHM
• 800W x 1 @ 2 OHM
• 1100W x 1 @ 1 OHM (tested at 14.4V, 1% THD)

Performance & Tuning

• Frequency Response: 13Hz – 268Hz
• Signal-to-Noise Ratio: 95dB
• Damping Factor: 180
• Input Sensitivity: 6V – 0.2V
• Subsonic Filter: 10Hz – 50Hz
• Low Pass Filter: 35Hz – 250Hz
• Bass Boost: 0 – 9dB @ 45Hz
• 41-click potentiometer controls for precision tuning

Features

• Strappable (master/slave configuration)
• Remote control included with voltage, temperature, clipping, and thermal display
• Working Voltage: 9V – 15.5V
• Fuse Rating: 150A

Dimensions

• 9.84 inch × 7.48 inch × 2.24 inch
• 250 mm × 190 mm × 57 mm

If you want reliable power, compact size, and precision tuning with the signature Down4Sound style, the JP11 is an easy win for budget-friendly builds that still hit hard.