Ground Zero Ultra Series: High-end amplifiers for your ultimate car hi-fi experience – now available at a great price in the Masori car hi-fi online shop
The Ground Zero Ultra series offers you amplifiers, speakers, and subwoofers at the highest level to significantly improve your car sound in BMW, VW, Mercedes, SEAT, or Opel. You benefit from a wide selection of powerful components that cover an enormous sound spectrum thanks to precise manufacturing. Whether you just want to enhance the bass or integrate a complete car hi-fi setup – the Ultra series is ideal for individual sound solutions.
Performance Features and Technical Highlights of the Ground Zero Ultra Components
If you are looking for a high-end amplifier for your car, numerous specifications are important. The Ultra series offers excellent values that meet audiophile demands:
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Frequency range: Depending on the model, between 10 Hz and 40 kHz
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Amplifier principle: Analog or digital with up to 85% efficiency
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Performance per channel: Up to 2×250 watts RMS at 4 ohms
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Damping factor: Over 500 for clean and controlled bass
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Signal-to-noise ratio: 100 dB and more for clear playback
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Impedances: Available in 2-ohm stable or 4-ohm versions
Specifically designed for ambitious car audio projects, the high-quality copper voice coils, delicate aluminum baskets, and precision-machined mounting rings ensure detailed reproduction across all frequency ranges – from intense deep bass to crystal-clear treble.
Comparison Table: Typical Ultra Amplifiers at a Glance
| Model |
Power (RMS @4Ω) |
Channels |
Frequency response |
Special feature |
| GZ ULTRA A-2 |
2×200 W |
2-channel (dual mono) |
15 Hz – 30 kHz |
Analog amplifier, separately adjustable channels |
| GZ ULTRA A-4 |
4×125 W |
4-channel |
10 Hz – 35 kHz |
High-bandwidth concept, plug & play capable |
| GZ ULTRA A-1 |
1×600 W |
Mono |
20 Hz – 200 Hz |
Specifically for high-power subwoofers |
Subwoofers and Speakers: Extensions for Your Car Sound
In addition to the high-end amplifiers, Ground Zero also offers subwoofers and speakers in the Ultra series, which stand out thanks to linearized NEO drive systems and massively constructed membranes. Whether you're looking for an upgrade for an Opel Corsa or a complete solution for a BMW 3 Series – the versatility of the Ultra models ensures that every frequency range is optimally covered.
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Ultra Subwoofer: With 25 cm to 30 cm chassis and up to 1,000 W RMS
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Midrange driver (80 mm): High-tech fabric membrane & neodymium magnets for precise midrange
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Midrange driver (165 mm): Aluminum cone for fast bass impulses and crisp mids
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Tweeter (30 mm silk dome): Very fine resolution in the high-frequency range
The modular range allows any audio component to be freely combined. For plug & play solutions, some speaker sets already include suitable crossovers or adapter rings, so they can be installed in various vehicle models without much effort.
Installation, Accessories, and Service for Maximum Performance
A professional installation is crucial to fully exploit the potential of car audio components. For more complex projects, it is advisable to consider special accessories:
- Gold-plated power and speaker cables
- High-quality RCA connections with low shielding resistance
- Alubutyl or insulation mats for vibration reduction
- Adapter cable sets for vehicle-specific plug & play installation
Whoever wants professional support when installing their car audio components can Installation service in Frankfurt Oder beauftragen und erhält passgenaue Lösungen für sein Fahrzeug. Dort werden Lautsprecher, Verstärker und Subwoofer von Expert*innen installiert, die eine präzise Abstimmung auf die Fahrzeugakustik vornehmen.
Expert support and AI chatbot for individual questions
If you are unsure which amplifier or speaker is optimal for your car, the Expert Support to the side. In addition, Masori offers an AI chatbot to check the compatibility of your components. This service makes selection easier by recommending suitable systems based on the provided vehicle data and answering technical questions.
Variations and Areas of Application: From Beginner to Audiophile
The Ground Zero Ultra series is one of the most versatile car audio solutions, as it covers different power classes, sizes, and numbers of channels. Whether you want to subtly enhance the factory sound of a VW Golf or build a full-fledged car audio competition vehicle – in the Ultra series, you will always find suitable components.
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Beginner: Compact 2-channel amplifier for easy retrofitting
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Advanced: 4-channel or 6-channel amplifiers for more complex multi-way systems
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Pros: Dual mono configuration with separate power supply for ultimate channel separation
This series is especially ideal for lovers of detailed music reproduction, as even fine sound nuances are preserved thanks to the linearized NEO drive system. The optional water cooling of some amplifier models allows for high continuous loads without any thermal losses.
Tips for Optimal Installation in the Vehicle
The placement and orientation of speakers and subwoofers are essential for a coherent sound image. Tweeters should ideally be installed on the A-pillar or near the mirror to create a clear stereo stage. Additionally, bass speakers should be housed in sturdy doors or in the trunk:
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Thermal insulation: Reduces sheet metal vibrations and serves as a resonance chamber
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Correct phase position: Ensures clean overlap between bass, midrange, and treble
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Amplifier position: Keep cable runs short to reduce signal loss
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Settings on the DSP (Digital Sound Processor): Fine-tuning for correct timing
If difficulties arise during installation, the installation service can help to correctly set all parameters. The comprehensive range of accessories including cable materials, insulation, and adapters offers additional options to customize sound and power individually.
Ground Zero Ultra Series: Your Car Audio Choice for Powerful Bass and Brilliant Highs
With the Ground Zero Ultra series, you get top-quality car audio components that can be perfectly matched to meet the specific requirements of your vehicle. Performance data and designs are so diverse that you will find a suitable combination for every sound concept. Thanks to optional plug-and-play capable sets, you can even effortlessly create a rich soundscape in modern cars from Audi or Ford. The combination of well-thought-out technology and simple installation options convinces both beginners and experienced car audio enthusiasts.
Use the handy Expert Support or improve the sound in your vehicle directly on site with the professional Installation service. For even more inspiration, an audio blog also offers comprehensive tips on individual sound upgrades that will put your car in pole position acoustically.