The Ground Zero Monoblock Iridium Amplifier GZIA 500.1 is a compact and capable 1-channel subwoofer amplifier designed to deliver strong, controlled bass performance with reliable everyday operation. Part of the trusted Iridium series, this Class D amplifier combines efficient power delivery with a smart internal design, making it an excellent choice for upgrading a subwoofer system without taking up unnecessary space. Its 1 ohm stable architecture allows flexible system tuning, while the integrated active crossover and bass boost help shape low-frequency output to suit your setup.

Built for convenience as well as performance, the GZIA 500.1 features high-level input with auto-on function and dummy load support, making it easy to integrate with factory or aftermarket head units. The stable power supply, large terminals, and triple protection circuit are all engineered to support dependable operation under load. A bass remote control is included, giving you direct control over subwoofer output from the driver seat. Finished with a black anodized heatsink and Ground Zero lettering, this amplifier pairs clean styling with practical cooling performance.

With power ratings of 230 watts RMS at 4 ohms, 400 watts RMS at 2 ohms, and 580 watts RMS at 1 ohm, the GZIA 500.1 offers impressive output for its size. Its frequency response of 15 to 250 Hz makes it ideal for subwoofer duties, while selectable HPF, LPF, and BPF filtering adds extra tuning flexibility. Compact dimensions of 168 x 49 x 212 mm make installation simple in a wide range of vehicles.

Features & Benefits

• Part of the Iridium series for efficient, compact bass amplification
• Monoblock Class D design for strong output with low heat generation
• 1 ohm stable for flexible subwoofer system matching
• Integrated active crossover and bass boost for tailored low-end performance
• High-level input with auto-on function for easy OEM integration
• Includes bass remote control for convenient on-the-fly adjustment