Gladen Zero 12 Pro

Gladen Zero 12 Pro   High-End Subwoofer Aluminium Gusskorb Nomex Spider Gelaserte Rückplatte Aufgenähte Litzen GLADEN PFP Technologie: Paper/Foam/Paper Compound Membran Made in Germany 30 cm / 12” 750/500 Watt 4 Ohm Impedanz 2,5” Schwingspule Für 50 l ventiliert oder 30 l geschlossen Speaker Specifications Power Pe 500 / 750 RMS/Nom DC resistance Rdc 3,7 Ω Nominal impedance ZN 4 Ω Resonance frequency fs 27 HZ Voice coil diameter 2,5 inch Xmax + - 12,5 mm Mechanical Q factor Qms 6,32 Electrical Q factor Qes 0,40 Total Q factor Qts 0,38 Moving mass Mms 135 g Effective piston area Sd 510 cm2 Mechanical resistance Rms 3,95 Kg/s Compliance Cms 0,26 mm/N Force factor BL 13,95 Tm Equivalent air volume Vas 93,72 dm3 SPL 2,83V/1m 92 dB Cone: PFP Spider: Nomex Surround: Rubber Coil former: Aluminium Basket: Aluminium Dust cap: Paper Diameter External diameter 312 mm / 12,28 inch Installation diameter 283 mm / 11,14 inch Installation depth 152 mm / 5,98 inch Magnet diameter 155 mm / 6,10 inch Gladen Zero 12 Pro