GROUND ZERO Radioactive Series Coaxial Loudspeaker Owner’s Manual
- August 28, 2024
- Ground-Zero
Table of Contents
GROUND ZERO Radioactive Series Coaxial Loudspeaker
Common features
- High-dynamic coaxial speaker with black circular-brushed aluminum cone
- Resonance-free steel basket
- Conex® spider / Durable rubber surround
- High-efficient 3-ohm impedance
- 20 mm / 0.79” silk dome tweeter (not for GZRF 69SQX)
- 13 mm/0.51” PEI tweeter and 50 mm/1.97” midrange (GZRF 69SQX)
- Hexagon-style protection grill
General installation note
- Never drill a hole in 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 the speaker wiring to avoid disturbance
- Use adequately dimensioned power and speaker wires to connect the component
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 at 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 | GZRF 4.0SQX | GZRF 5.2SQX | GZRF 6.5SQX | GZRF 69SQX |
|---|---|---|---|---|
| Nominal diameter | 10 cm |
4“
| 13 cm
5.25“
| 16,5 cm
6.5“
| 15 x 23 cm
6“ x 9“
Loudspeaker type| 2-Wege Koaxial
2-way coaxial
| 3-Wege Koaxial
3-way coaxial
Impedance| 3 Ohm/ ohms
Frequency response| 70 Hz –
24 kHz
| 60 Hz –
24 kHz
| 50 Hz –
24 kHz
| 40 Hz –
25 kHz
Power handling (RMS / max)| 70 / 110
Watt / Watts
| 80 / 120
Watt / Watts
| 100 / 140
Watt / Watts
| 130 / 200
Watt / Watts
Efficiency (SPL)| 90 dB| 90 dB| 91 dB| 92 dB
Installation (mounting) diameter| 93 mm
3.66”
| 117.5 mm
4.63”
| 142.5 mm
5.61”
| 214 x 152 mm
8.4” x 5.98”
Mounting depth| 47 mm
1.85”
| 59 mm
2.32”
| 68 mm
2.68”
| 82 mm
3.23”
Installation of the protection grill
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 training for development employees ensures the highest possible qualification. KLIPPEL® is a registered trademark of KLIPPEL GmbH
Developed with LOUDSOFT
Ground Zero uses simulation software FINECone, FINEMotor, and FINESuspension for development. These tools allow optimal design of cone shapes, cone materials, magnet drives, surrounds, and spiders through FEM calculations. They are part of a modern loudspeaker development. LOUDSOFT is a product of Loudsoft Ltd. ApS Denmark
Respect the Music
Listening to music can be emotional, impressive, relaxing ,or enjoyable. At
that, it doesn´t matter what kind of music is my 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 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 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
References
Read User Manual Online (PDF format)
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