Ground Zero GZRW 300SPL


Cast frame, High-roll sandwich surround and heavy magnet are the first thing you notice about this subwoofer. When you look closer, you can see other details that help making this driver so excellent performer. Reinforced paper cone with extremely tough dust cap is double stitched to surround. voice coil cooling happens through the big tunnel in pole piece and with cooling vents in the frame. Voice coil is 3″ in diameter and is wounded of OFC wire. Push type terminals hold tight the cables and conductors wowen to Polycot spider can handle high X-max. You can not see all the things that matter and most important of the invisible ones is Klippel-optimization. With Klippel device it is possible to monitor all parts of the subwoofer during over 10 hour torture test. During the test power handling capability of woofer is really tested by feeding even 4 times more than driver is built to handle. Meaning of this torture is to find out the weakest links in prototypes and make them stronger for final product.

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Artikelnr: GZRW 300SPL Kategori:


– 12″ subwoofer

– 3″ copper voice coil

– Klippel optimized

– Alumininium 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 ohm

Fs: 40.5 Hz

Qms: 4.984

Qes 0.593

Qts: 0.530

Vas: 17.7 liters

Le: 3.112 mH

Mms: 256.8 gr

X-max: 50 mm

SPL: 86

Bl: 20.62 TeslaM

Mer information

Vikt 8 kg







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