The Ground Zero GZRW 25-D2 is a high-performance 25-cm subwoofer designed for demanding car audio applications

adjustable bass boost

The subwoofers can process particularly high input power and thus achieve extremely high bass levels in order to be used successfully even under competitive conditions

- Pole core hole

HiFonics ZXT5000/1 Koaxial The Ground Zero GZRW 25-D2HiFonics Zeus Extreme Series With the ZEUS EXTREME ULTRA CLASS D series, HiFonics presents the most powerful amplifier series in its history to date. HiFonics has taken advantage of the latest developments and improvements in state of the art semiconductors to create this extraordinary series. While analog Class A B technology always forces a compromise between sound and power efficiency, Class D amps improve efficiency and sound together. This means