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
GZRC 165.3SQ - Pair / With Cross-Over is backordered and will ship as soon as it is back in stock.
✓ 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
✓ 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.
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.
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.
Ground Zero Radioactive Serie
The RADIOACTIVE series offers a large selection of exceptional and particularly highly efficient loudspeakers and subwoofers for both daily and SPL use. During development, GROUND ZERO primarily focused on the natural and dynamic audio reproduction of digitally compressed music. Apart from some powerful amplifiers, the line contains extremely small amplifiers for limited space.
Sound quality speaker system with variable crossover frequency, 3 ohm impedance and 25mm silk dome tweeter
✓ High-quality 3-way SQ component system
✓ Klippel® optimized woofer with aluminum cone
✓ Nomex Zentrierspinne / Gummi Sicke
✓ Linearizing copper cap
✓ Low-resonance steel basket
✓ Gold-plated connectors
✓ 25 mm SQ silk dome tweeter with recessed housing
✓ Variable tweeter crossover frequency (high/low)
✓ 3 ways crossover 
✓ 165mm hexagon recessed grille
✓ 230 Watt max. / 150 Watt rms
✓ 3 Ohm
Technical specifications:
| execution | 3-way SQ component speaker system | 
|---|---|
| diameter | 165 mm | 
| Power handling (RMS/max.) | 150 / 230 Watt | 
| impedance | 3 Ohm | 
| efficiency | 90 dB | 
| frequency response | 35 Hz - 25 kHz | 
| tweeter | GZRT 25SQ | 
| woofer/midrange speaker | GZRK 165SQ | 
| installation dia | 142.5 mm | 
| installation depth | 68 mm | 
| crossover | 3 ways | 
| crossover frequency | 200 / 4300 Hz | 
Payment methods
Your payment information is processed securely. We do not store credit card details nor do we have access to your credit card information.