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  5. Ultra T-30

Ultra T-30

100 Watt

Ultra T-30

Technical Highlights

  • Power of 100/150 watts, frequency response from 1000 Hz to 26 kHz.
  • Impedance of 4 ohms, efficiency at 82 dB, CCA voice coil.
  • Resonance frequency at 500 Hz, neodymium drive, aluminum housing.
  • More technical details
€1,995.00
€1,995.00 €1,995.00
2% discount with credit card

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ProductUltra T-30

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Estimated delivery: Sep 17–Sep 22.
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1 year extra warranty

Every product purchased from Masori includes an additional year of warranty in the third year after purchase (months 25–36). We cover repair or replacement free of charge for covered warranty claims. Automatic and free – exclusively for Masori customers. Your statutory rights remain unaffected.

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datasheet
Ground Zero-Ultra T-30-Kalotten-Hochtöner-masori-kaufen
€1,995.00
€1,995.00 €1,995.00

The Ultra T-30 from Ground Zero is a 30 mm Ultra-High-End Dome Tweeter with a power handling of 100 Watts RMS and 150 Watts Maximum. The model features an impedance of 4 Ohms and covers a frequency range from 1000 Hz to 26 kHz. The technical construction includes a CNC-machined aluminum housing with an integrated diffuser as well as a GZ-design sound guide. A highly efficient neodymium drive powers the lightweight CCA voice coil, while the diaphragm is made of coated textile fabric. To reduce distortion, a ventilated voice coil former is integrated. The system is characterized by tightly tolerated technical parameters and a special acoustic damping for pressure distribution. The delivery is made as a pair-selected set in a wooden packaging including documented technical final inspection.

Features
  • Dome Tweeter
  • 30 mm diameter
  • Power handling: 100 Watts RMS
  • Power handling: 150 Watts Max
  • Impedance: 4 Ohms
  • Diaphragm made of coated textile fabric
  • CNC-machined aluminum housing
  • Integrated diffuser
  • Highly efficient neodymium drive
  • CCA voice coil
  • Ventilated voice coil former
  • GZ-design sound guide
  • Acoustic damping for pressure distribution
  • Pair-selected in wooden packaging
  • Documented technical final inspection
Technical Data
  • Efficiency: 82 dB
  • Frequency response: 1000 Hz – 26 kHz
  • Installation diameter: 60 mm
  • Installation depth: 41 mm
  • Resonance frequency (Fs): 500 Hz

Frequently Asked Questions about Ultra T-30

What makes the Ultra T-30 Dome Tweeter from Ground Zero particularly special?

The Ultra T-30 Dome Tweeter from Ground Zero impresses with its extraordinarily precise sound reproduction and high-quality craftsmanship. Especially if you enjoy listening to music at high volumes, you will benefit from the wide frequency range of 1000 Hz to 26 kHz, which captures many fine details. Another important factor is the top-notch combination of a ventilated voice coil and lightweight CCA voice coil. This ensures high efficiency and low distortion—even at demanding volume levels. The CNC-machined aluminum housing not only looks elegant but also supports special acoustic damping. This allows sound to be evenly distributed, and you experience a clear, natural sound image. Additionally, the Ultra T-30 is selected in pairs and delivered in a stylish wooden package, so you can be sure to always receive consistent technical parameters.

What role does the ventilated voice coil play in sound quality?

The ventilated voice coil in the Ultra T-30 Tweeter is responsible for effectively dissipating heat and minimizing unwanted vibrations. When you turn up the volume a bit more, the voice coil can heat up quickly. The ventilation immediately dissipates this heat, causing the overall system to operate cooler and reducing distortion. At the same time, the technical parameters remain stable, ensuring you a consistently crystal-clear high-frequency range. This ventilation makes the tweeter extremely robust and also contributes to a longer lifespan of your car audio tweeter. Ground Zero's superior design with the ventilated voice coil shows how much value is placed on detail and durability, allowing you to enjoy your favorite music in the best possible sound quality.

How is the high efficiency of the CCA voice coil in the Ultra T-30 achieved?

The special CCA voice coil (Copper Clad Aluminium) is a real highlight of the Ultra T-30. To provide you with high efficiency, copper is combined with aluminum – resulting in an extremely lightweight yet conductive material. When the tweeter from Ground Zero is driven, this voice coil reacts much faster and more precisely, as less mass needs to be set in motion. Especially if you appreciate detailed highs and a vibrant upper frequency range, you will feel this advantage. Additionally, the ventilated coil carrier ensures that the voice coil exhibits a consistent resonance behavior even under high loads. This leads to a high-resolution sound image, where even fine nuances in your music are perfectly represented.

Why does the CNC-milled aluminum housing play such an important role?

The CNC-milled aluminum housing of the Ultra T-30 not only serves aesthetics but also plays a central role in sound quality. Thanks to precise CNC manufacturing, you can be sure that every contour fits perfectly and no sharp edges are created that could cause disturbing reflections. Aluminum is also a stable and lightweight material, which reduces unwanted resonances. The housing also supports the integrated pressure distribution, as it dampens vibrations in combination with the special acoustic damping. This allows you to achieve clear high-frequency reproduction without disturbing background noise. When you listen to music with many fine details, these properties provide a particularly pure sound image and give your favorite pieces the necessary brilliance.

What advantages does the integrated diffuser in the Ultra T-30 tweeter offer?

The integrated diffuser in the high-end car tweeter Ultra T-30 from Ground Zero helps you distribute sound evenly. This prevents sound waves from building up at certain points in the housing, causing distortions or peaks. Instead, the diffuser elements ensure that the highs are evenly distributed in the vehicle, so that all frequencies reach your ear clearly. Especially when you listen to different music genres – whether rock, pop, or classical – you will notice the gain in clarity and spaciousness. The combination of the diffuser and special GZ design sound guidance optimizes the radiation characteristic, providing you with a very natural listening experience. This way, details play back much more transparently without having to deal with overly emphasized highs.

Is the Ultra T-30 Dome Tweeter compatible with common European car brands like BMW, Audi, Mercedes, or VW?

Typically, the Ultra T-30 Dome Tweeter can be easily integrated into many European vehicle models, as it has a mounting diameter of 60 mm and a mounting depth of 41 mm. This is a common size that can fit in numerous doors or A-pillars. However, if you're wondering whether your specific model has enough space, it's always worth checking the exact installation dimensions of your vehicle. Ground Zero places great importance on flexible application options, which is why the frame is designed to ensure that the tweeter finds a secure hold in many car interiors. With early planning, you can optimally position the Ultra T-30 in most cases to fully exploit its acoustic potential.

How does the GZ-Design sound guide affect the frequency response from 1000 Hz to 26 kHz?

The specially designed GZ-Design sound guide in the Ring Radiator Tweeter Ultra T-30 ensures that you receive a consistent radiation angle across the entire frequency spectrum. Technically, this works by reducing reflections and refractions through the shape of the sound guide, directing the sound forward. For you, this means precise reproduction without cancellations or disturbing resonances. Especially in the range from about 1000 Hz up to 26 kHz, the highs remain very linear, giving the sound an open, detail-oriented character. This way, you can hear clean cymbals, delicate vocals, and brilliant guitar solos even in complex musical passages. The result: a natural soundstage that allows you to immerse yourself deeper into your favorite songs.

What does the documented technical final inspection of the Ultra T-30 bring you?

For each pair of Ultra T-30, Ground Zero conducts a documented technical final inspection to ensure that you receive only tweeters with precisely tuned parameters. This process ensures, for example, that the frequency responses and impedance values of both models are identical, giving you a perfectly selected set. Especially if you want a particularly homogeneous stereo sound in your car, you benefit from the left and right sides being perfectly matched. Furthermore, you gain assurance about the reliability and performance of those components that are crucial for a brilliant listening experience across many music genres. The result is a tweeter system that not only sounds great but also consistently performs sustainably.

Why is the resonance frequency of 500 Hz relevant to you?

A resonance frequency of 500 Hz means that the membrane of the Ultra T-30 has its own resonance at this point. This is a relatively low value for a car audio tweeter and requires a particularly sophisticated design. Although the nominal frequency response starts at 1000 Hz, this low resonance helps ensure that the tweeter generally exhibits fewer distortions in its operating range. If you like to listen loudly or prefer musical material with many dynamic fluctuations, the low resonance frequency ensures that no unpleasant peaks or distortions creep in. In practical application, you can integrate this tweeter more flexibly into your system, giving your music more liveliness and clarity.

In which areas is the Ultra T-30 high-end tweeter particularly well-suited?

The Ultra T-30 high-end tweeter from Ground Zero is extremely versatile and caters to a wide range of applications. It is perfect for music lovers who value the finest details and desire an authentic stage representation. Whether rock, jazz, or electro-heavy tracks – thanks to its frequency response up to 26 kHz, you can hear even airy highs clearly and cleanly. Additionally, this high-end car tweeter scores with its robust construction featuring a CNC-machined aluminum housing and a ventilated voice coil, providing you with lasting reliability. The Ultra T-30 also excels in demanding installations with creative mounting layouts, as its lightweight and the documentation of technical parameters support precise tuning.

Manufacturer information/responsible person

Ground Zero GmbH
Erlenweg 25
85658 Egmating, Germany

Tel +49 (0)8095 873 830

E-Mail: info@ground-zero-audio.com

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