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  3. Uranium GZUM 55SQ
Ground Zero Uranium GZUM 55SQ 2" (5cm) Midrange Speaker
SKU:  GZUM55SQ
EAN:  4037072023268

1 Review

90 Watt

Uranium GZUM 55SQ

SKU:  GZUM55SQ
EAN:  4037072023268

1 Review

Technical Highlights

  • 90 Watt RMS, 4 Ohm impedance, 90 dB efficiency, 150 Watt max.
  • 55 mm midrange driver, neodymium drive, aluminum membrane, hexagon grille.
  • Copper voice coil, resonance-optimized basket, outstanding sound quality.
  • More technical details
€299,00
€299,00 €299,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Only a few left in stock (1 pieces available)
In stock
Jun 5, - Jun 6,
x pair
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Two round black Ground Zero Uranium GZUM 55SQ speakers with honeycomb grilles stand side by side, each 2-inch midrange displaying a small GZ logo at the bottom center.
€299,00
€299,00 €299,00

Uranium GZUM 55SQ by Ground Zero

The Ground Zero Uranium GZUM 55SQ is a 2-inch (5 cm) midrange speaker with a diameter of 55 mm. The model from Ground Zero features an anodized aluminum diaphragm, a neodymium driver, and a resonance-optimized composite basket. A hexagon protective grille is included, and the connections are designed as plug/solder terminals. The voice coil measures 20 mm and is made of copper. The power handling is 90 watts RMS and 150 watts maximum at 4 ohms. The efficiency is 90 dB, the frequency response ranges from 500 Hz to 7 kHz, and the resonance frequency is 194 Hz. Designed as a sound-quality midrange speaker. Delivered as 1 pair per package.

Features
  • 2-inch (5 cm) midrange speaker
  • Anodized aluminum diaphragm
  • Neodymium driver
  • Resonance-optimized composite basket
  • Includes hexagon protective grille
  • Plug/solder terminals
  • 1 pair per package
Technical Specifications
  • Diameter 55 mm
  • RMS power 90 watts
  • Maximum power 150 watts
  • Impedance 4 ohms
  • Efficiency 90 dB
  • Frequency response 500 Hz – 7 kHz
  • Resonance frequency 194 Hz
  • Voice coil 20 mm, copper
  • Sound-quality midrange speaker

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Ground Zero Uranium GZUM 55SQ Datasheet

Open datasheet

Frequently Asked Questions about Uranium GZUM 55SQ

How does the aluminum membrane of the Uranium GZUM 55SQ affect sound quality?

The anodized aluminum membrane of the Uranium GZUM 55SQ from Ground Zero is known for its lightness and stiffness, properties that enable precise sound reproduction across the entire frequency range. Even at high volumes, distortion remains minimal, resulting in clear and crisp playback. The anodized surface also provides an additional layer of protection against environmental influences, increasing durability. The sound is particularly suited for detailed midrange tones, which resonate cleanly and with minimal resonance due to the aluminum structure.

What advantages does the neodymium drive in the Uranium GZUM 55SQ offer?

The neodymium drive in the Uranium GZUM 55SQ midrange speaker enables powerful and efficient sound reproduction due to the high magnetic density that neodymium provides. This results in a strong magnetic field, allowing for more precise control of the 20 mm copper voice coil. The neodymium magnet is also compact, optimizing the size while maximizing performance. The combination of these factors leads to dynamic sound with improved efficiency and increased sound pressure, ideal for high-quality audio systems.

What is the power handling of the Ground Zero Uranium GZUM 55SQ midrange speaker?

The Ground Zero Uranium GZUM 55SQ midrange speaker is specified with a power handling of 90 watts RMS and 150 watts maximum. This capacity allows the midrange speaker to remain stable even at higher volumes and demanding music pieces. The 4-ohm impedance is also ideally tuned to ensure efficient device integration in both home and vehicle audio systems. These performance specifications provide impressive dynamics without the risk of overload or quality loss at high levels.

What are the dimensions and how does that affect the installation of the Uranium GZUM 55SQ?

With a diameter of 55 mm, the Ground Zero Uranium GZUM 55SQ is compactly designed to allow flexible integration into various environments. The resonance-optimized composite basket structure helps minimize vibrations, expanding installation options. This compact format is ideal for installation spaces with limited room, while the plug/solder connection simplifies the installation process. These dimensions are particularly useful for seamless integration into existing audio systems.

What frequency range does the Ground Zero Uranium GZUM 55SQ cover?

The midrange driver covers a frequency range of 500 Hz to 7 kHz, making it ideal for reproducing midrange frequencies that are crucial in musical playback. This bandwidth means that voices and instruments within this range are reproduced with particular detail and precision. Combined with its resonance frequency of 194 Hz, the Uranium GZUM 55SQ demonstrates impressive performance in the midrange, contributing to a harmonious overall sound and significantly enhancing the overall sound quality of an audio system.

How does the copper voice coil contribute to the performance of the Uranium GZUM 55SQ?

The 20 mm copper voice coil of the Ground Zero Uranium GZUM 55SQ plays a crucial role in power transfer and sound quality. Copper offers excellent conductivity, efficiently controlling the movement of the diaphragm, resulting in highly precise and distortion-free sound reproduction. The size of the voice coil gives the speaker the ability to dissipate heat efficiently, which is particularly beneficial at higher power levels. This ensures sound integrity even at high volumes, ideal conditions for listeners who prefer detailed, clear sound.

How does the resonance-optimized composite basket support the sound quality of the Uranium GZUM 55SQ?

The resonance-optimized composite basket of the Ground Zero Uranium GZUM 55SQ reduces unwanted vibrations and resonances that could impair sound quality. This construction stabilizes the speaker's chassis to ensure a clean and undistorted output of the output signals. This feature significantly improves the overall clarity and precision of midrange reproduction and minimizes acoustic interference. Especially with music tracks featuring complex mid frequencies, this creates a more natural and detailed soundscape.

What efficiency does the Uranium GZUM 55SQ midrange driver show?

With an efficiency of 90 dB, the Ground Zero Uranium GZUM 55SQ has a high sensitivity that allows for efficient conversion of electrical input power into acoustic power. This means that even with lower amplifier power, significant volume can be achieved, making it ideal for energy-saving audio applications. This feature ensures that the speaker demonstrates outstanding acoustic presence even in low sound pressure environments, making it versatile.

How does the hexagon grille ensure the operation of the Uranium GZUM 55SQ?

The hexagon grille of the Uranium GZUM 55SQ is crucial for protecting the sensitive anodized aluminum diaphragm from physical damage and particles. It provides a stable barrier that protects the speaker during daily use and promotes longevity. Additionally, the structured design of the grille supports airflow around the diaphragm, helping to minimize sound interference. This ensures clean reproduction and increases confidence in using the speaker under various conditions.

How does the Ground Zero Uranium GZUM 55SQ differ from other midrange drivers?

The Ground Zero Uranium GZUM 55SQ stands out due to its combination of a resonance-optimized composite basket, a robust anodized aluminum diaphragm, and a powerful neodymium drive. Particularly, the integrated plug/solder connection facilitates installation, while the specifically tuned frequency range of 500 Hz to 7 kHz optimizes midrange reproduction. Ultimately, these features combine to create a speaker that offers excellent sound quality with high durability and an optimized design for flexible installation situations.

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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