Ground Zero GZRW 300SPL Pink 1500W 12" SPL-subwoofer

Cast frame, High-roll sandwich upper suspension and sturdy magnet are the first things you notice about this element. If you look more closely, you can find more details that make the element such a functional whole. In addition to gluing, the reinforced paper cone with a really sturdy dust cup is attached to the upper suspension with double stitches. The voice coil is ventilated both through the tunnel in the center pole and through the ventilation holes in the body. The voice coil is 3″ in size and is wound with OFC copper wire. The spring-loaded terminals keep the cables in place even in harder locking, and the wires wound inside the lower casing withstand even violent trajectories.

Not all goodies are visible and one of the most important is the Klippel optimization performed by Ground Zero. With the help of the optimization device, it is possible to monitor the operation and temperatures of all parts during the 10-hour-long crash. In testing, the element's power durations are exceeded up to four times. The task of this optimization is to find the weak points of the prototypes and make them better for the production model. - 12″ subwoofer
- 3″ copper voice coil
- Klippel optimized
- Aluminum cast basket
- reinforced paper cone
- High-roll sandwich surround
- 2x 2 ohm voice coils
- Power handling 1000 W RMS, 1500 W Peak
- Sealed enclosure 19-40 liters
- Ported enclosure 35-50 liters tuned to 32-37 Hz
- Recommended amplifier power 800-1500 W RMS
- Mounting depth: 150 mm
- Mounting hole diameter: 281 mm
- Motor diameter: 175 mm

Thiele-Small parameters:

Re: 3.84 ohms
Fs: 40.5 Hz
Qms: 4.984
Qes 0.593
Qts: 0.530
Left: 17.7 liters
Le: 3.112 mH
Eg: 256.8 gr
X-max: 50 mm
SPL: 86
Bl: 20.62 TeslaM.