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Ground Zero

GZCT 25M-SPL

dome tweeter

2 Reviews

69,00€
69,00€ 69,00€
incl. VAT , possibly plus shipping

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Highlights

  • 70/100 watts RMS/Max., 4 ohm impedance, 3000 Hz 20 kHz frequency.
  • 25mm Mylar dome, 25mm voice coil, 12 dB/oct high pass filter.
  • Neodymium magnet, ferrofluid cooling, 84 dB efficiency.
Seen more cheaply Personal Offer
brand: Ground Zero
Delivery time:
Available, in 2-5 days with you
Number:
Couple
Watt RMS:
70
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69,00€ 69,00€

The Ground Zero GZCT 25M-SPL is a top-class dome tweeter. Equipped with features such as a 25mm high-performance mylar dome tweeter and a 25mm voice coil, it delivers strong performance and excellent sound quality. Its neodymium magnet and the included high-pass filter further contribute to ideal, harmonious audio reproduction. With ferrofluid cooling and its 70/100 Watt RMS/Max. load capacity, this tweeter has everything you need for an extraordinary listening experience. Thanks to the practical packaging unit of one pair, it is ready for immediate installation in your audio system.

properties

  • 25 mm dome tweeter with mounting bracket and high-pass filter
  • High-Performance Mylar Dome Tweeter
  • 25 mm vibrating coil
  • Mylar Dome
  • Neodymium Magnet
  • Incl. 12 dB/Oct high-pass filter
  • Ferrofluid Cooling
  • 1 pair / packaging

Technical Data

  • Execution high-performance tweeter with Mylar dome
  • Diameter 25 mm
  • Load capacity (RMS/max.) 70 / 100 Watts
  • Impedance 4 Ohm
  • Efficiency 84 dB
  • Frequency response 3000 Hz – 20 kHz
  • Cut-off frequency 5500 Hz (High-pass cut-off frequency)
  • Swing coil 25 mm
  • Kalotte Mylar
  • Installation Ø 48 mm
  • Installation depth 16 mm
The GZCT 25M-SPL from Ground Zero boasts impressive performance specifications. It is equipped with a dome tweeter and a 25 mm Mylar dome with a neodymium magnet. The power handling is 70 watts RMS and up to 100 watts maximum power, making it particularly powerful. With a frequency response of 3000 Hz to 20 kHz, it covers a wide range. Additionally, it offers an impedance of 4 ohms and an efficiency of 84 dB. The crossover frequency is at 5500 Hz thanks to the integrated 12 dB/oct high-pass filter.
The installation of the GZCT 25M-SPL tweeter from Ground Zero is easy thanks to its practical design. With a mounting diameter of 48 mm and a mounting depth of only 16 mm, it fits into many audio systems. The installation usually takes place at a suitable location in the vehicle interior, with the mounting bracket being useful. Pay attention to the correct wiring with the included high-pass filter to optimally utilize the specified crossover frequency of 5500 Hz. Proper placement ensures the best sound quality.
Ferrofluid cooling is an advanced feature of the GZCT 25M-SPL from Ground Zero. This technology enhances the heat dissipation of the 25 mm voice coil and contributes to the longevity and stability of the device. Especially at high power, ferrofluid prevents the tweeter from overheating, positively affecting sound performance. With reduced heat generation, distortion remains minimal, and sound quality is preserved even at higher volumes. It is a crucial factor for consistent audio quality and reliability.
The Mylar dome tweeter in the GZCT 25M-SPL from Ground Zero offers a variety of technical features. The dome diameter is 25 mm, making it compact yet powerful. The use of a neodymium magnet enables a strong magnetic force even at a small size, which contributes to improved sound performance. The integrated high-pass filter operates with a crossover frequency of 5500 Hz, ensuring precise frequency separation. Mylar as a diaphragm material provides high durability and optimal acoustic properties.
The high-pass filter included in the GZCT 25M-SPL from Ground Zero has a significant impact on sound quality. It is designed with a 12 dB/octave transmission that ensures seamless integration of the tweeter into the audio system. The main function of this filter is to block low frequencies, effectively enhancing the high-frequency range. With a crossover frequency of 5500 Hz, the filter ensures that only the desired high frequencies reach the tweeter, significantly improving sound purity and clarity while reducing distortion.
The frequency range of the GZCT 25M-SPL from Ground Zero extends from 3000 Hz to 20 kHz, making it particularly versatile for various music genres. This range allows for the reproduction of clear and precise highs, which are crucial for the fidelity and character of the music. The precise tuning by the Mylar dome tweeter ensures that even at high frequencies, there is minimal distortion. This range is ideal for anyone who places an emphasis on high-quality audio reproduction in the high-frequency range.
The neodymium magnet in the GZCT 25M-SPL from Ground Zero is a key element for the outstanding sound performance of the tweeter. Thanks to its small size and high power, this magnet provides a strong and consistent magnetic force on the Mylar dome. This leads to more efficient movement, allowing the tweeter to respond quickly to signals and offer more precise sound characteristics. Neodymium magnets are known for their stability and strong performance, making the GZCT 25M-SPL ideal for users who love clear and powerful sounds.
The 25 mm voice coil in the GZCT 25M-SPL from Ground Zero plays a central role in the impedance tuning and influencing the sound quality. It ensures the direct conversion of electrical signals into mechanical movements of the Mylar diaphragm, which ultimately produce audible sounds. A larger voice coil, like this 25 mm variant, offers improved heat resistance and greater stability at high volumes. These characteristics ensure that the tweeter delivers consistent and high-quality audio performance even under extensive use.
The GZCT 25M-SPL from Ground Zero has specific dimensions that facilitate its installation. The installation diameter is 48 mm, and the installation depth is only 16 mm, making it flexible and compatible with various vehicle models. This compact design allows the tweeter to be placed in different locations within the car audio system without requiring much space. The small dimensions are particularly advantageous when you want to implement a high-quality sound system in your vehicle with limited space.
The impedance of 4 Ohms of the GZCT 25M-SPL from Ground Zero has a decisive influence on power consumption and compatibility with amplifiers. A low-impedance speaker like this draws more power, which promotes a strong audio signal and ensures dynamic sound reproduction. This is particularly useful when powerful and energetic sound dynamics are desired. However, ensuring compatibility with amplifiers designed for low-impedance loads is important to fully exploit the speaker's potential without overloading the audio setup.

Customer Reviews

Based on 2 reviews
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M
Marion Freimanner
Alles super!

Super schneller Versand, perfekt gepasst, super Ergebnisse!

N
Noah Bach
Preisleistungstechnisch sehr gut

Bin mit dem Sounderlebenis des Hochtöners sehr zufrieden kann ich nur weiter empfehlen

Product Specifications

Manufacturer

Ground Zero

Product type

Dome tweeter

Features

  • Highlights

    • 70/100 watts RMS/Max., 4 ohm impedance, 3000 Hz 20 kHz frequency.
    • 25mm Mylar dome, 25mm voice coil, 12 dB/oct high pass filter.
    • Neodymium magnet, ferrofluid cooling, 84 dB efficiency.

  • Uvp

    69

weight

0.5 kg

Technical data

Watt RMS Load Capacity

70

configurators

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Your advantages with Masori

High-performance Mylar dome tweeters – sound quality on a new level

Experience the Ground Zero GZCT 25M-SPL dome tweeter and discover quality that impresses. With its 25mm Mylar dome, it delivers brilliant high-frequency reproduction. Mylar technology offers high durability and excellent sound quality. This is especially useful in demanding audio setups where clarity and precision are critical. Using Mylar reduces sound distortion, resulting in clearer reproduction. What would happen if a different material were used? This could result in increased weight and different audio properties. But with Mylar, the sound remains crisp and detailed.

Neodymium magnet of the GZCT 25M-SPL – Powerful reproduction with compact dimensions

Another technical highlight of the Ground Zero GZCT 25M-SPL is the neodymium magnet. Neodymium is known for its excellent magnetic performance in a small size. This is ideal for use in small tweeters where space is often limited. Compared to ferrite magnets, neodymium allows for significantly higher energy density, resulting in a more powerful and efficient sound. At the same size, neodymium offers a stronger output that effectively supports the entire sound spectrum. Changing to a weaker magnet would significantly impair performance.

Ferrofluid cooling for maximum resilience – performance and reliability combined

The GZCT 25M-SPL's ferrofluid cooling system improves heat dissipation and increases power handling without compromising performance. With an RMS power of 70 watts and a maximum power of 100 watts, this tweeter can withstand even the most intense listening sessions. This cooling technology minimizes thermal stress and significantly extends the lifespan of the voice coil. Without ferrofluid, overheating could occur under high loads, which could impair long-term functionality. However, this design ensures that the tweeter remains reliable even under extreme conditions.

12 dB/oct high-pass filter integration – optimized frequency separation for crystal-clear sounds

An integrated 12 dB/octave high-pass filter helps the Ground Zero GZCT 25M-SPL tweeter achieve optimal sound separation. The crossover frequency is set at 5500 Hz, a key setting to avoid unnecessary component stress. A well-designed high-pass filter reduces speaker overload and protects it from low frequencies that fall outside its reproduction spectrum. Better protection results in clearer sound and less distortion. Without this filtering, lower frequencies could impair the tweeter's performance and reduce its sonic precision.

25 mm voice coil – precision and stability for best sound reproduction

The 25 mm voice coil of the Ground Zero GZCT 25M-SPL is essential to its sonic performance. It offers an optimal balance between weight and stability. A larger voice coil could theoretically handle more stress, but at the expense of mobility. At 25 mm, the voice coil remains light enough to produce dynamic highs while being robust enough to withstand the rigors of daily use. Switching to a smaller coil would potentially compromise stability and reliability, leading to distortion.

4 Ohm impedance – Harmonious cooperation with diverse audio systems

With an impedance of 4 ohms, the GZCT 25M-SPL offers versatile application possibilities and compatibility with a wide range of amplifiers. In car hi-fi, 4 ohms is a standard value that offers a good balance between conductivity and efficiency. This impedance promotes efficient current flow and results in higher output power with lower current consumption. A higher impedance could increase the load on the amplifier, while a lower impedance could potentially strain the speakers. The 4 ohms ensure optimal performance and safety.

Installation diameter 48 mm and installation depth of 16 mm – Flexible design for every installation

With a mounting diameter of 48 mm and a mounting depth of 16 mm, the GZCT 25M-SPL fits perfectly into virtually any installation. These compact dimensions allow for flexible adaptation to various mounting locations within the vehicle without compromising audio quality. The minimal mounting depth is particularly advantageous in tight installation situations where conventional sizes might be cumbersome. Any larger dimensions would significantly limit installation options. Its compact design is therefore crucial for seamless integration.

Efficient efficiency of 84 dB – Clear reproduction even at low power

The 84 dB efficiency of the GZCT 25M-SPL tweeter is optimized for clear and powerful acoustics, even at low inputs. This allows the tweeter to play loudly and efficiently at low amplifier power. A higher efficiency could theoretically provide even more volume, but often at the expense of sonic fidelity. Lower efficiency requires more power input, which can push the amplifier to its limits more quickly. Its 84 dB represents the optimum in balanced power consumption.

Frequency response from 3000 Hz to 20 kHz – Comprehensive high-frequency reproduction for detailed sounds

The Ground Zero GZCT 25M-SPL's frequency response, from 3000 Hz to 20 kHz, covers the entire high-frequency range. It ensures razor-sharp reproduction of high-frequency details, ideal for music and speech reproduction. Extending the frequency range downwards would create unnecessary strain and could lead to distortion. The upper frequency threshold of 20 kHz guarantees that no detail is lost, even with high-frequency audio signals. Broad frequency coverage without restrictions ensures that every audio content remains audible.

Expert support during installation and commissioning

Are you looking for professional support for the optimal installation of the Ground Zero GZCT 25M-SPL? The car hi-fi online shop Masori offers valuable assistance and services tailored specifically to your needs. Take advantage of our on-site installation in Frankfurt (Oder) or consult our expert support FAQ & Help for more in-depth information. Alternatively, the Audio Blog offers exciting insights and news from all around the world of audio. At Masori, you receive expert support and benefit from our lowest price guarantee, which ensures that you always get our products at the best price.