Name: Ground Zero Audio
Address: Erlenweg 25 85658 Egmating, Germany
Email: info@ground-zero-audio.com
Website: https://www.ground-zero-audio.com/
European Manufacturer: Yes
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GZHW 30-D1/D2
Regular price
349,00€
Unit price
/
Unavailable
Tax included
Shipping calculated at checkout.
GZHW 30-D1/D2 - Individually / D1 - Dual 1 Ohm is backordered and will ship as soon as it is back in stock.
Free shipping from 49€
Free shipping from 49€
Shipping
✓ Free shipping from 49€ within Germany and from 99€ to the EU.
✓ Delivery times vary depending on the product and can be found on the product page, usually 1 - 3 working days for stock items, international shipping times vary, usually 6 - 10 working days.
✓ In most cases, shipping is carried out by DHL, UPS and GLS.
✓ Depending on the product and location, items can also be shipped with other providers.
✓ Tracking will be sent by email after the shipment has been processed.
Normal shipping route
✓ 1 - 40Kg = DHL, UPS and GLS
✓ 40.1 - maximum kg = forwarding agency
✓ Bulky goods = freight forwarder
✓ Customs shipments = DHL, GLS or freight forwarder
Parcel collection
✓ Collection takes place regularly from Monday to Friday, orders received by 3 p.m. are usually disposed of on the same day for goods in stock and transported directly to the parcel center.
5% discount for prepayment
5% discount for prepayment
Receive a 5% pre-payment discount. The discount is automatically deducted in the shopping cart/checkout and is valid for all products. Vouchers or discount codes may be excluded or already combined.
Wiring wizard & port computer
Wiring wizard & port computer
Use our wiring wizard for simple wiring of speakers and subwoofers! The correct connection is important for your amplifier! Low-impedance operation can damage the amplifier! The data sheet shows you which connection the respective amplifier is designed for!
Our port calculator shows you which tuning your enclosure has! The net volume is always particularly important here; calculate the pure chamber of the subwoofer beforehand to arrive at the correct result. The net volume is calculated minus all displacements and is important when designing the enclosure.
Downloads
Downloads
Manufacturer Information
The Ground Zero GZHW 30-D1/D2 from the HYDROGEN series was developed for uncompromising bass performance and is designed for discerning car audio enthusiasts as well as SPL applications. Thanks to its robust construction—featuring a solid cast aluminum basket, a reinforced paper cone, and a long-throw 75-mm voice coil—the subwoofer delivers both high power handling and precise control, even during extreme excursions.
The Klippel®-optimized design ensures smooth operation across the entire excursion range and delivers an impressive combination of bass depth, power handling, and sound quality. With a choice between Dual 1 Ohm (D1) and Dual 2 Ohm (D2), the subwoofer can be flexibly adapted to different amplifier setups. The GZHW 30 truly unleashes its full potential in generously sized bass-reflex enclosures, delivering powerful, deep bass with high precision—whether for everyday use or in high-performance sound systems.
Technical Specifications
- Series: Ground Zero HYDROGEN
- Model: High-Performance SPL Subwoofer
- Nominal diameter: 30 cm (12")
- Power handling: 1,500 watts RMS
- Maximum power rating: 3,000 watts
- Impedance GZHW 30-D1: 2 × 1 ohm
- Impedance GZHW 30-D2: 2 × 2 ohms
- Recommended amplifier power: 1,000–3,000 watts RMS
- Efficiency: 85 dB
- Voice coil: 75 mm (3") copper
- Diaphragm: Reinforced paper diaphragm
- Centering: 2-layer Polycot centering
- Bead: Long-stroke U-bead
- Basket: Cast aluminum basket
- Dust cap: Carbon
- Magnet System: Efficient 3-Magnet System
- Klippel®-Optimized Drive Unit
- Press-Fit Speaker Terminals
- Maximum excursion (Xmax p2p): 45 mm
- Outer diameter: 315 mm
- Installation diameter: 284 mm
- Installation depth: 198 mm
Thiele-Small Parameter GZHW 30-D1
- Resonance frequency (Fs): 39.1 Hz
- Overall Quality (Qts): 0.56
- Mechanical Grade (Qms): 8.00
- Electrical quality (Qes): 0.60
- Equivalent air volume (Vas): 17.6 liters
- Moving mass (Mms): 363 g
- BL factor: 18.86 Tm
- DC resistance (Re): 2.0 ohms (in series)
Thiele-Small Parameter GZHW 30-D2
- Resonance frequency (Fs): 42.4 Hz
- Total quality (Qts): 0.60
- Mechanical Quality (Qms): 6.86
- Electrical quality (Qes): 0.65
- Equivalent air volume (Vas): 16.9 liters
- Moving mass (Mms): 320 g
- BL factor: 22.35 Tm
- DC resistance (Re): 3.8 ohms (in series)
Case Recommendation
- Capacity (minimum): 28 liters net
- Bass reflex (recommended): 90 liters net for maximum bass response
- Alternative bass-reflex tuning: 60 liters net volume for more compact enclosures
- Also suitable for bandpass applications
Payment & Security
Payment methods
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