Passive Subwoofer Box

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REFERENCE Series

The EISA awarded REFERENCE components obtain the highest attention and care during a long lasting development.
Without any compromise, each component is selected from the best ones available on the market.
Highest production quality and the most accurate supervision of every single part ensure not less than perfect performance, ultimate sound quality and workmanship for the highest demanding customer.
Emphasizing the high-end status of the REFERENCE products, each amplifier, speaker and subwoofer is finally certified by GROUND ZERO´s in-house quality department and delivered in a classy, logo-branded wooden box handmade in Germany.

PLUTONIUM Series

The products of the PLUTONIUM line are suitable for either ultimate SPL level or high-end sound quality.
To achieve one of these targets, exceptional materials and technologies are applied during the development.
The technical, electrical and mechanical skills of the resulting products convince not only during worldwide SPL competitions but also High End enthusiasts with outstanding audio reproduction ability.
Starting from the market release, the subwoofers have set benchmarks in all SPL competitions around the world and have been awarded for best performance by numerous test magazines.

NUCLEAR Series

With several particular features of the High End PLUTONIUM line, GROUND ZERO managed to position the NUCLEAR line products at a lower price level.
Nevertheless, the amazingly sounding speakers are partly “Made in Germany”.
The subwoofers are predestined for high level audio setups as well as for SPL competition while massive multi-channel and impressively powerful mono amplifiers deliver excellent performance.

URANIUM Series

Each product of the URANIUM line-up has been developed carefully to fulfill the demands of music enthusiasts with high audiophile expectations at a reasonable price level.
Applying all of Ground Zero´s sound quality competition experience while tuning the product details carefully, results in emotional and amazing audio reproduction.
The distinguished amplifiers point out the main purpose by their designation: SQ beyond the average!

HYDROGEN Series

Products of the HYDROGEN series match with the demands of highly sophisticated customers.
Amazing performance, great sound quality and high SPL whenever required.
The subwoofers have been developed to handle a huge amount of input power reaching extremely high bass levels, to be used successfully even under competition conditions.
A matching 2-way component speaker system and a number of MINI amplifiers with compact dimensions for limited installation space complete this famous GROUND ZERO line-up.

RADIOACTIVE Series

The RADIOACTIVE line offers a wide range of exceptional high efficient speakers and subwoofers for daily and SPL use.
During the development GROUND ZERO focused especially on natural and dynamical audio reproduction of digitally compressed music.
Apart from some powerful amplifiers, the line contains extremely small amplifiers for limited space environments.

TITANIUM Series

The products of the TITANIUM line combine premium quality and high efficiency.
A wide range of dedicated speakers meet most of the customer´s need.
The amplifiers are equipped with sophisticated technology and encased by a posh heatsink with brushed titanium color surface.
Especially for trucks, GROUND ZERO offers two models of the TITANIUM amplifier line-up as a 24-Volt version.

IRIDIUM Series

Representing the entry level of GROUND ZERO, the IRIDIUM line offers a lot of useful features and an amazing performance.
The range contains a variety of affordable amplifiers, speakers and subwoofers for the daily use and for SPL purpose.
These are available as single drivers for custom-built applications as well as in loaded passive and active enclosures.

COMPETITION Series

The experience of a real concert atmosphere or club feeling needs professional high SPL levels to be achieved. This however, requires very special and powerful speakers as well as amplifiers. GROUND ZERO´s development department doesn´t make any compromise, whenever the purpose of the product is that clear. Because of this, a COMPETITION product is the right choice for demanding customers with high SPL level expectations.

COMPETITION Pro Series

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.

Car Specific Products

Most OEM speaker systems cannot completely satisfy the expectations of sophisticated customers.
Especially the basic equipment leaves a lot of space for improvements of dynamics and sound quality.
Installing car specific aftermarket speakers is a simple way to enhance the audio system.
GROUND ZERO´s line of CAR SPECIFIC solutions consists of various components designed for upgrading the OEM audio systems of modern cars easily.

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.

Damping

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Headphones

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Accessories

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