For the variety of applications of a midwoofer or a kickwoofer different models are required, accordingly. GROUND ZERO offers the right version for each application.
The range consists of high-end sound quality drivers to a number of COMPETITION line models, which are particularly suitable for high-level setups.

Ultra Series


After collecting detailed experience in SQ performance and general in-car audio reproduction for more than 25 years during the development of loudspeakers, subwoofers and amplifiers for highly demanding customers and having launched a wide range of car audio products used for sound quality competitions all over the world, GROUND ZERO had started to take advantage of all these gathered skills devising a very new and super high-end product line. For the most sophisticated demands, GROUND ZERO introduces an extraordinary two-channel amplifier and matching loudspeakers now! REFERENCE ULTRA series products are developed by highly attentive engineers from England, Sweden and Germany creating products for the most demanding customers without accepting any compromise in overall quality and SQ performance.



Ultra-high-end 165 mm / 6.5” midwoofer

Plutonium Series

High-End Experience

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.


32321020: 165 mm / 6.5″ high end midwoofer

Nuclear Series

Ultimate Performance

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.


32322011: 165 mm / 6.5″ SQ midwoofer with supreme sound quality

Uranium Series

Amazing Sound Quality

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!


32323030: 165 mm / 6.5″ sound quality midwoofer

Hydrogen Series

High-Grade Technology

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.

GZHK 165

32324010: 165 mm / 6.5″ high power midwoofer

Radioactive Series

Advanced Dynamics

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.


32325011: 165 mm / 6.5″ high power midwoofer

Titanium Series

Premium Quality

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.

GZTK 165

32326010: 165 mm / 6.5″ high power midwoofer

Iridium Series

Top Performance @ Entry Level

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.


32327030: 165 mm / 6.5″ SPL midwoofer

Competition Series

Realistic Stage Atmosphere

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.


32228030: 165 mm / 6.5″ high power midrange speaker


32228031: 200 mm / 8″ high power midrange speaker


32228032: 250 mm / 10″ high power midrange speaker


32228060: 165 mm / 6.5″ high power midrange speaker


32228061: 165 mm High-Power Mitteltonlautsprecher


32328030: 165 mm / 6.5″ SPL midwoofer


32328041: 200 mm / 8″ SPL midwoofer


32328042: 250 mm / 10″ SPL midwoofer


51628010: 25 cm / 10″ High-Power midwoofer

Car Specific Series

CAR SPECIFIC Upgrade for the OEM sound system

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.


41230011: Car specific 165 mm / 6.5″ midrange speaker


41230012: Car specific 200 mm / 8″ midrange speaker