GZTF 4.0X Titanium Series Coaxial Loudspeakers
Owner’s Manual
GZTF 4.0X Titanium Series Coaxial Loudspeakers
Features
- High quality coaxial loudspeaker with HQPP cone
- Klippel® optimized
- Durable rubber surround
- Resonance free steel basket
- Efficient 3 ohms voice coil
- 13 mm / 0.51” Mylar tweeter with overload protection
- 55 mm / 2.17” Mylar midrange with overload protection (GZTF 69X)
- Hexagon style protection grill
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 components
Safety instructions
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
| Modell / model | GZTF 4.0X | GZTF 5.2X | GZTF 6.5X | GZTF 69X |
| Nom. Durchmesser /nominal diameter | 10 cm / 4″ | 13 cm / 5.25″ | 16.5 cm / 6.5″ | 15 x 23 cm / 6 x 9″ |
| Lautsprecher Version / loudspeaker type | 2-Wege Koaxial 2-way coaxial | 3-Wege Koaxial 3-way coaxial | ||
| Impedanz / impedance | 3 Ohm / ohms | |||
| Frequenzgang / frequency response | 70 Hz — 22 kHz | 60 Hz — 22 kHz | 50 Hz — 22 kHz | 40 Hz — 22 kHz |
| Belastbarkeit (RMS) power handling (RMS) | 70 Watt / Watts | 80 Watt / Watts | 90 Watt / Watts | 130 Watt / Watts |
| Belastbarkeit (max) power handling (max) | 100 Watt / Watts | 110 Watt / Watts | 130 Watt / Watts | 190 Watt / Watts |
| Wirkungsgrad / efficiency (SPL) | 90 dB | 90 dB | 91 dB | 92 dB |
| Resonanzfrequenz/ resonance frequency | 100 Hz | 74 Hz | 66 Hz | 65 Hz |
| >La. | 7 mm / 0.28″ | 8 mm / 0.31″ | 10 mm / 0.40″ | 12 mm / 0.47″ |
| Einbaudurchmesser / mounting diameter | 93 mm / 3.66″ | 117.5 mm/ 4.63″ | 143.5 mm / 5.65″ | 214 x 152 mm 8.4 x 5.98″ |
| Einbautiefe mounting depth | 51 mm / 2.01″ | 62 mm / 2.44″ | 67 mm / 2.64″ | 85 mm 3.35″ |
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 products are engineered in Germany GROUND ZERO – international sponsor of
Ground Zero GmbH
Erlenweg 25, 85658 Egmating, Germany
Tel. +49 (0)8095/873 830
Fax -8310
www.ground-zero-audio.com 
http://www.ground-zero-audio.com
Ground Zero Audio – Car Audio Products
