The COMPETITION PRO series marks the very top level of electrically and mechanically possible power handling, nowadays.
These drivers have been designed especially for long distance open show and demonstration performances at very high SPL level as well as
for the more and more popular “Pancadão” open-air stages featuring a wall of speakers, a competition trend coming from Brazil.

Home Audio

COMPETITION Pro Amplifier
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COMPETITION Pro DSP Products
Amplifiers with an ISO harness are easy to integrate into an existing audio system. There is no additional wiring needed. In case the car has a brand-specific connector, the car audio market offers a wide range of adapters to convert OEM head units to the ISO standard.

COMPETITION Pro Speaker Systems
For some years customers were missing matching loudspeaker components and systems belonging to the GROUND ZERO HYDROGEN series to be combined with its amplifiers and subwoofers. Based on a particularly designed aluminum cast basket the engineers have realized a powerful 6.5” midwoofer with a strong ferrite motor and oversized CCA voice coil. In combination with a vented silk dome tweeter equipped with a coupled chamber and a passive crossover, the new HYDROGEN series 2-way system is born for customers looking for an extraordinary performance. The loudspeakers are available separately for active setups, as well.

COMPETITION Pro Speaker Components
Speaker components of the COMPETITION PRO series are specially designed for a long distance to the listener and are particularly suitable for show and demonstration purposes with high sound pressure levels.
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GZCT 19N-PROX B
Read more25 mm / 1″ high end compression tweeter with neodymium motor
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GZCT 19N-PROX S
Read more25 mm / 1″ high end compression tweeter with neodymium motor
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GZCM 6.5N-PRO
Read more165 mm / 6.5″ high power midrange speaker with neodymium motor
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GZCM 8.0N-PRO
Read more200 mm / 8″ high power midrange speaker with neodymium motor

Car Specific Products
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COMPETITION Pro Subwoofer
Subwoofers of the COMPETITION PRO series are specially designed for a long distance to the listener and are particularly suitable for show and demonstration purposes with high sound pressure levels.

COMPETITION Pro Subwoofer Boxes
Similar to the line of SPL models RADIOACTIVE subwoofers offer a number of special components. However, instead of highest SPL, the main focus is set on excellent low bass performance for everyday use.

Marine/ATV
Since listening to favorite music isn´t limited to cars, GROUND ZERO offers a particular speaker for environments with special requirements to the construction and water resistance.A sophisticated RADIOACTIVE MARINE coaxial speaker is available in white finish, suitable for places with high humidity such as bathrooms and pool areas or even for off-shore applications with occasionally appearing direct splashing water such as on outer decks or on leisure boats.

COMPETITION Pro Accessories
In this category there are crossovers for loudspeakers. These can be used to combine individual components into a passive system.

COMPETITION Pro Damping
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COMPETITION Pro Headphones
If you would like to enjoy the typical GROUND ZERO sound not only in your vehicle, you may choose one of the two headphones.
Both of them delivering a distinctive bass response and the dynamic sound character.