Uranium

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!

Uranium Speaker Components

ULTRA speakers are designed for the most demanding music lover.

Carefully built by hand with the best materials and selected in pairs, they are delivered in fine wooden boxes.

The mid-bass driver ULTRA K-165 uses a high-tech fabric cone “Made in Germany” in conjunction with linear suspension and a narrow-tolerance copper voice coil with a linearized NEO motor. Built in a filigree aluminum basket for optimal air flow, these are the ingredients for outstanding neutrality and sound quality.

The tweeter ULTRA T-30 with its 30mm coated silk dome is characterized by a particularly low resonance frequency and extreme neutrality. The linearized NEO magnet system with the complex rear ventilation of the cone in the solid aluminum housing enables the wonderfully spatial and precise audio reproduction with an extremely wide frequency range.

REFERENCE speakers are designed for demanding high-end music lovers. Accurately hand built in Europe, selected in corresponding pairs and delivered in classy wooden boxes. Midbass and midrange speakers are made from hand-coated, pressed paper cones and hand-spooled copper voice coils, inserted into manually machined aluminum parts of the basket, forming the basis for outstanding high-end sound quality. The tweeter features a particularly low resonance frequency. The usable wide frequency range of the hand-coated silk dome thus enables astonishingly spatial and precise audio reproduction.

In order to compile an individual sound quality setup at highest level, the speakers of the PLUTONIUM line are available in pairs as components separately.

In order to compile an individual sound quality setup, the speakers of the NUCLEAR line are available in pairs as components separately.

Using outstanding materials for the cones and accurate tuning, these speakers provide an amazing sound quality performance. The drivers are available for active setups, separately.

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.

Some components of the RADIOACTIVE loudspeaker systems are also available separately.

The TITANIUM line includes a wide range of coaxial and component speaker systems in the favorable price segment and a separately available tweeter.

The IRIDIUM line includes a wide range of coaxial and component speaker systems in the favorable price segment and a separately available tweeter.

For high-frequency and mid-range reproduction, the COMPETITION series offers a variety of high-efficient far-field compression tweeters and various midrange speakers. The latter can be used in free-air applications as well as in horn or bass reflex systems.

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.

GZUT 28SQX

32123013: 28 mm / 1.1″ silk dome tweeter

GZUF 60SQ-A

32223012: 60 mm / 2.36″ sound quality full range speaker

GZUM 80SQ

32223020: 80 mm / 3.15″ sound quality midrange speaker

GZUM 55SQ

32223030: 55 mm SQ midrange speaker

GZUK 165SQ

32323030: 165 mm / 6.5″ sound quality midwoofer

Uranium 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.