Reference
Pure High-End Sound Quality
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.
Reference Subwoofer
For most accurate bass performance, the unique REFERENCE subwoofer comes with a lot of particular solutions, such as a number of linearization parts added to the magnet system optimizing the impedance and eliminating distortion.
This exceptional subwoofer has been optimized to perform in small enclosures.
The PLUTONIUM subwoofers are probably the most famous GROUND ZERO products. 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. By using extremely durable components and solid constructions, the PLUTONIUM subwoofers are particularly suitable for SPL competition use. They are able to convert enormous amplification power into sound pressure and thus provide the basis for the success.
Paired with the yellow colored surround stitch and an ultra-solid as well as perfectly ventilated aluminum cast basket, the SPL subwoofers with ferrite or neodymium motor are predestined for high level audio setups and for SPL competition, too. The Xmax called versions expand the line of long excursion models providing excellent low bass performance.
High performance speaker setups require equivalent low frequency extension. The URANIUM line subwoofers match perfectly and offer various enclosure options.
The HYDROGEN SPL subwoofer line-up contains a great variety of models in many different sizes for various demands. Massive aluminum cast baskets and a lot of further technologies enhance the reachable SPL level. For an individual setup each model is available in typical yellow or in green. GROUND ZERO even offers some models in pink color matching mainly female requests.
RADIOACTIVE SPL subwoofers include some particular technologies for SPL use at a very reasonable price. The right choice for dedicated SPL competition rookies. In contrast to the line of SPL versions, the RADIOACTIVE street subwoofers have the main focus set on excellent low bass performance for everyday use.
When space is limited, special solutions are required. That’s why GROUND ZERO’s offers two particularly flat subwoofers in the TITANIUM line.
The subwoofers of the IRIDIUM line are available as SPL models or Street versions for daily use.
To extend the bass range, GROUND ZERO offers some particularly efficient woofers in the COMPETITION series.
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.
