GROUND ZERO GZPW 15XXmax Plutonium Series Low Bass Subwoofer Owner’s Manual

GROUND ZERO GZPW 15XXmax Plutonium Series Low Bass Subwoofer

Product Information

The PLUTONIUM SERIES GZPW 15XXmax subwoofer is a high-end audio product that offers exceptional sound quality and extreme power handling capability. This subwoofer is designed with exceptional materials and technologies to deliver outstanding audio reproduction ability. It is suitable for high-end enthusiasts and worldwide sound quality competitions.

Technical Specifications

• Model: GZPW 15XXmax
• Voice Coil: 100 mm / 4
• Impedance: 2 x 1 Ohm/ohms
• Re (serial / wired in serial): 2.12 Ohm/ohms
• Fs: 31.6 Hz
• Qms: 5.47
• Qes: 0.43
• Qts: 0.40
• Vas: 27.0 L / 0.95 cu.ft.
• Mms: 642 g
• Xmax (p2p): 80 mm / 3.15
• Efficiency: 84.3 dB
• BL: 25.13
• Power Handling: 6000 W RMS

Recommended Enclosure Specifications

• Vented: 120 Liter netto / 4.24 cu.ft. net, 16 cm/6.3, 34 cm / 13.4, 29.1 Hz
• Vented: 140 Liter netto / 4.94 cu.ft. net, 10 x 30 cm / 3.9 x 11.8, 35 cm / 13.78, 31 Hz
• Sealed: Not Recommended!

Product Usage Instructions

Before installing and using the PLUTONIUM SERIES GZPW 15XXmax subwoofer, ensure that you read and understand the safety instructions and terms of warranty provided in the user manual.

General Installation Notes
Follow these general installation notes when installing the subwoofer:

• Ensure that the subwoofer is mounted securely and placed in a suitable enclosure.
• Connect the subwoofer to a suitable amplifier and adjust the settings according to your preference.

Recommended Low Pass Filter
The recommended low pass filter for the PLUTONIUM SERIES GZPW 15XXmax subwoofer is not specified in the user manual. It is recommended to find the perfect tuning, especially port length, based on your car and own taste.

Remember to respect the music and enjoy the outstanding audio reproduction ability of the PLUTONIUM SERIES GZPW 15XXmax subwoofer.

Features

• Heavy-duty 38 cm subwoofer
• Optimized for Klippel®
• Aluminum cone / dust cap
• Long throw sandwich surround
• 4-layer Nomex centering
• 100mm flat wire CCA voice coil
• Solid cast aluminum basket
• Large dimensioned pressure contact connection
• Instructions inside
• High-power 15” subwoofer
• Klippel® optimized
• Aluminum cone/dust cap
• High-roll sandwich surround
• 4-layer Nomex spider
• 4” flat wire CCA voice coil
• Solid aluminum cast basket
• Large push terminals
• Owner´s manual enclosed

Introduction

Thank you for choosing a great GROUND ZERO product! We hope you will enjoy this product from the PLUTONIUM series. This owner´s manual contains information you need to use this product. Please read it carefully in order to achieve the best possible result. Your car audio specialist or our customer support will answer further questions about the product and its use.

Subwoofers are an important part of your car audio system. Please keep in mind, however, that they can only achieve their full performance if all other components of the entire system are carefully coordinated with one another. It is therefore recommended consulting a car audio specialist dealer or workshop for the assembly of the system and its installation and sound adjustments.

Series High-End Experience

Products belonging to the GROUND ZERO PLUTONIUM series stand for high-end sound quality or extreme power handling capability. To achieve one of these targets, exceptional materials and technologies are applied during the development. The technical, electrical and mechanical skills of the resulting products convince not only during worldwide sound quality competitions but also satisfy the demands of high-end enthusiasts with their outstanding audio reproduction ability.

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

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.

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| | GZPW 15XXmax
---|---|---|---
Voice coil| 100 mm / 4″
Impedance| 2 x 1 Ohm/ohms
Re (wired in serial )| 2.12 Ohm/ohms
Fs| 31.6 Hz
Qms| 5.47
Qes| 0.43
Qts| 0.40
Vas| 27.0 L / 0.95 cu.ft.
Mms| 642 g
Xmax (p2p)| 80 mm / 3.15″
Efficiency| 84.3 dB
BL| 25.13
Power handling| 6000 W RMS
Rec. amplifier power| 4000 – 10000 Watt / Watts @ 2 Ohm / ohms

oder / or

4000 – 10000 Watt / Watts @ 0.5 Ohm / ohms

Recommended low pass filter| LPF 50 Hz ≥12 dB Okt./oct oder / or

LPF 60 Hz ≥ 24 dB Okt./oct

Recommended power handling

Enclosure recommendation

The above-mentioned enclosure recommendations are just a few possible variations. Please note that you should find the perfect tuning, especially port length, based on your car and your own taste.

Wiring Options

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 ensure the highest possible qualification.

The Linear Parameter Measurement (LPM) module of the KLIPPEL® Analyzer System is dedicated to identifying the electrical and mechanical small signal (Thiele/Small) parameters of electro-dynamical transducers with high accuracy. It is based on the electrical impedance by measuring the voltage and current at the speaker terminals. An additional benefit of the displacement measurement is the identification the suspension creep parameters, resulting in better accuracy of the loudspeaker model at low frequencies. The LPM provides tools to identify and avoid typical problems such as poor signal to noise ratio and malfunction due to nonlinear effects of the driver or amplifier limiting.

The Large Signal Identification (LSI) module measures the linear, nonlinear and thermal parameters of transducers operated in free air. The transducer is operated under normal working conditions (vertical position and fixed clamped in a laser stand or enclosure). Starting in the small-signal domain, the amplitude is gradually increased up to limits admissible for the particular transducer. The maximal amplitude is determined automatically using the identified transducer parameters and general protection parameters describing the thermal and mechanical load. The identification of the model parameters is performed in real time with an adaptive system. It is based on the estimation of the back EMF from the voltage U(t) and current signal I(t) measured at the electrical terminals. The identified model allows locating the sources of the nonlinear distortion and their contribution to the radiated sound. The dynamic generation of a DC-part in the displacement, amplitude compression and other nonlinear effects can be investigated in detail. After the initial identification, a temporal parameter variation and long-term thermal effects can be investigated.

KLIPPEL® R &D hardware and dB-Lab software for LPM/LSI measurements meet the following standards:

Consumer Electronics Association
CEA-2031(LSI module)

International Electrotechnical Commission

• IEC 60268-5, IEC 60268-7, IEC 60268-22, IEC 62458,
• IEC 62459, IEC WD 63034

European Standards
BS EN 54-24

Audio Engineering Society
AES2

Institute of Electrical and Electronics Engineers
IEEE 269, IEEE 1206, IEEE 1329, IEEE 1652

KLIPPEL® is a registered trademark of KLIPPEL GmbH

Listening to music can be emotional, impressive, relaxing or enjoyable. At that, it doesn´t really 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 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)8095/873 830 Fax -8310
www.ground-zero-audio.com.

References

• Ground Zero Audio – Car Audio Products

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