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!
Not a huge surprise but a great honour, the performance of the GZ ULTRA A-2 charmed the members of the EISA, a group of international car audio trade journalists, right from the very first listening sessions that much that there was any doubt about the decision to award this amplifier as
“BEST PRODUCT – IN-CAR HIGH-END COMPONENT”
Only the best components ever have been considered good enough to find their way to the REFERENCE amplifier line-up.
Cooled by a high-quality copper-anodized aluminum heat sink, each model has been equipped with a slightly toned acrylic bottom allowing a glance on the selected components accurately arranged on the discreetly white illuminated and copper-plated double-layer pc board.
The 4-channel version has been awarded by the EISA organization as the world´s best in-car amplifier 2018/2019.
11223011: 2-channel Sound Quality amplifier
11423011: 4-channel Sound Quality amplifier
11523011: 6-channel Sound Quality amplifier
Uranium Speaker Systems
31323021: 165 mm / 6.5″ 2-way component speaker system
31323022: 165 mm / 6.5″ 2-way component speaker system for active use
31323031: 165 mm / 6.5″ 3-way SQ component loudspeaker system
31323032: 165 mm / 6.5″ 3-way SQ component loudspeaker system for active use
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.
32223012: 60 mm / 2.36″ sound quality full range speaker
32223020: 80 mm / 3.15″ sound quality midrange speaker
32223030: 55 mm SQ midrange speaker
32323030: 165 mm / 6.5″ sound quality midwoofer
This exceptional subwoofer has been optimized to perform in small enclosures.
51523022: 30 cm / 12″ sound quality subwoofer
51623022: 25 cm / 10″ sound quality subwoofer
51723022: 20 cm / 8″ sound quality subwoofer
Uranium Subwoofer Box
81523020: 2-way variable passive crossover
81523030: 3-way variable passive crossover