GROUND ZERO GZCT 28M-SPL Competition Series Tweeter Owner’s Manual

June 13, 2024
Ground-Zero

GROUND ZERO logo GERMAN ENGINEERING
COMPETITION SERIES
Tweeter
GZCT 28M-SPL
Anleitung / Owner´s manual
(AWV2.1)

Specifications

  • High-quality dome tweeter
  • Installation-friendly dimensions
  • 28 mm / 1.1” Mylar dome
  • Flush and surface mount housing included (GZTH 25-28B)
  • 12 dB/oct in-line high-pass filter

COMPETITION SERIES

General installation note

  • Never drill a hole to the vehicle´s gas tank or brake lines, to wirings or any other important vehicle parts!
  • Never pass wires over sharp edges or vehicle parts to avoid any kind of damage
  • Keep the wiring away from the antenna and electronic devices contributing to radio reception
  • Lay the power supply wiring always separated from speaker wiring to avoid disturbance
  • Use adequately dimensioned power and speaker wires to connect the component

Safety instructions

Safety instructions: Keep all parts of the content and the packaging away from children and pets to avoid accidents and the risk of suffocation. Permanently extreme levels of over 85 dB can lead to irreparable damage to the hearing. Music systems with high amplifier output power can reach levels of 130 dB or more. Extreme levels can also hinder the perception of important traffic noises and distract from what is happening on the road. Ground Zero GmbH and its sales partners expressly assume no
responsibility for hearing damage, physical damage or any damage to property or consequential damage resulting from improper or careless use or improper installation of its products. In particular, any claims are forfeited through the use under competitive conditions.
Manufacturer’s declaration: Hereby, Ground Zero GmbH declares that this product conforms to the rules of the following EU directives (including all applicable changes): 2011/65 / EU RoHS2 and 2001/95 / EC directive on general product safety.
The full text of the EU declaration of conformity is available at www.ground- zero-audio.com. Loudspeakers contain magnetized metals and some valuable raw materials and must not be disposed of with normal household waste. Please leave defective or
no longer required components to a local recycling facility at the end of their practical use.

Terms of warranty

The limited warranty for this product is covered by GROUND ZERO´s regional distribution partners and their terms and conditions. For further information contact your local retailer or distributor.

Specifications

Model GZCT 28M-SPL
Impedance 4 Ohm / ohms
Cone diameter 28 mm / 1.1”
Motor Neodym / neodymium
Resonant frequency 1250 Hz
Frequency response 2.5 – 20 kHz
Efficiency (SPL) 86 dB
Power handling (RMS) 80 Watt / Watts (mit / with HPF)
Power handling (max.) 110 Watt / Watts (mit / with HPF)
Protection PTC
High pass filter 12 dB / Okt. / oct @ 5500 Hz
Outer diameter 54 mm / 2.13”
Mounting diameter 48 mm / 1.89”
Mounting depth 16 mm / 0.63”

GROUND ZERO GZCT 28M-SPL Competition Series Tweeter

Verified with KLIPPEL

GROUND ZERO is using the worldwide accepted KLIPPEL ® R&D Analyzer KA3 measurement system for speaker development during the German in-house development as well as for QC reporting for most production lines at the factory. The results of LPM and LSI measurements are the basis for evaluating and verifying further development enabling to offer perfectly working products in any practical application. Continuous and advanced trainings for development employees ensure the highest possible qualification.  KLIPPEL ® is a registered trademark of KLIPPEL GmbH

Respect the Music

Listening to music can be emotional, impressive, relaxing or enjoyable. At that, it doesn´t really matter what kind of music is the personal favorite, whether it´s Instrumental, Jazz, Electro, Latin, Classic, Rock or any other music direction. However, audio reproduction quality at each desired volume is elementary.
Some music styles require higher levels while others prefer the soft tones.GROUND ZERO considers all the different wishes of customers during the development of new products. Along with this, the target is to create the most realistic sound, to transfer the soul of the music and the intention of the performer. Summarized to one phrase: RESPECT THE MUSIC!

GROUND ZERO GZCT 28M-SPL Competition Series Tweeter -
icon
GROUND ZERO Produkte werden in Deutschland entwickelt
GROUND ZERO products are engineered in Germany
GROUND ZERO – international sponsor of

Ground Zero GmbH
Erlenweg 25 – 85658 Egmating – Germany
Tel. +49 (0)8095 / 873 83 -0
Fax -10
http://www.ground-zero-audio.com
www.ground-zero-audio.com

http://www.ground-zero-audio.com

Documents / Resources

| GROUND ZERO GZCT 28M-SPL Competition Series Tweeter [pdf] Owner's Manual
GZCT 28M-SPL Competition Series Tweeter, GZCT 28M-SPL, Competition Series Tweeter, Series Tweeter, Tweeter
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References

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