Ground Zero GZ BASS KIT 12.300X-II
The Ground Zero GZ BASS KIT 12.300X-II is a complete subwoofer package: a 30 cm / 12″ subwoofer with IMPP cone mounted in a 40 L vented enclosure with front aero-port, paired with the separate GZBA 1.300X mono class AB amplifier. With 200 watts RMS and 300 watts max, high-level input and auto-on, it adds solid bass to any factory or aftermarket system without complicated installation.
Key Features
- Complete Subwoofer Kit: 12″ loaded enclosure and matching amplifier in one package
- 12″ Subwoofer with IMPP Cone: Durable injection-moulded polypropylene cone, 4 Ohm
- Vented Enclosure with Front Aero-Port: 40 L / 1.41 cu.ft. net volume for deep, efficient bass
- GZBA 1.300X Mono Class AB Amplifier: 200 W RMS / 300 W max output
- Variable Active Crossover and Bass Boost: Low pass 40 – 250 Hz, bass boost 0 – 6 dB at 40 Hz
- High-Level Input with Auto-On: Connects directly to factory radios without RCA outputs
- Optional Accessories: Cable kit and wired bass level remote control (usable in LPF mode)
Technical Specifications
- Subwoofer: 30 cm / 12″, IMPP cone
- Subwoofer Impedance: 4 Ohm
- Enclosure: Vented with front aero-port, 40 L / 1.41 cu.ft. net
- Box Dimensions: 560 x 360 x 350/250 mm (22.05″ x 14.17″ x 13.78″/9.84″)
- Amplifier: GZBA 1.300X, mono class AB
- Amplifier Power: 200 W RMS / 300 W max
- Amplifier Frequency Response: 15 Hz – 20 kHz
- Low Pass Filter: 40 – 250 Hz
- Bass Boost: 0 – 6 dB @ 40 Hz
- Input Sensitivity: 200 mV – 6.5 V
- High-Level Input / Auto-On: Yes / Yes
- Amplifier Dimensions: 180 x 236 x 53 mm (7.09″ x 9.29″ x 2.09″)
An easy, affordable way to add real bass to your car with everything you need in one box.












