6.5 – 8“ Subwoofer

For the reproduction of particularly low frequencies a special loudspeaker is required developed especially for this.
Subwoofers can cover all demands on bass reproduction in a suitable enclosure.
GROUND ZERO offers many different models for the required application.
The technical properties serve as the basis for the calculation of an enclosure.
These properties, enclosure recommendations as well as power ratings can be found in the manual and datasheet, which are available for download.

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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!


    20 cm / 8″ sound quality subwoofer

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High-Grade Technology

The HYDROGEN line satisfies all demands of highly sophisticated customers.
Amazing performance, great sound quality and much higher SPL than imagined.
The subwoofers have been developed to handle a huge amount of input power reaching extremely high bass levels to be used successfully under competition conditions.
Especially for limited installation space, three extremely small amplifiers have been added to the line of well-known existing high power models.

  • GZHW 20XSPL-D1

    20 cm / 8″ high quality SPL subwoofer

  • GZHW 20XSPL-D2

    20 cm / 8″ high quality SPL subwoofer

  • GZHW 16SPL

    16 cm / 6.3″ high quality SPL subwoofer

  • GZHW 16SPL Green Edition

    16 cm / 6.3″ high quality SPL subwoofer

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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.


    16.5 cm / 6.5″ high quality SPL subwoofer


    20 cm / 8″ high quality SPL subwoofer

  • GZRW 8FL

    20 cm / 8″ high quality flat subwoofer

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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.

  • GZIW 200X-II

    20 cm / 8″ subwoofer

  • GZIW 165X-II

    16.5 cm / 6.5″ subwoofer

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