Description The 121FPW is a high efficiency, (98 dB 1watt / 1 meter) 12inch woofer with incredibly linear frequency response characteristics, high power handling capability while generating low harmonic distortion artifacts. The 121FPW uses a unique REDCATT developed lightweight mica loaded cone assembly along with a high excursion double roll constant geometry surround. This combination provides remarkable strength and high efficiency. The Cone The 121FPW lightweight cone and dust cap are made using an advanced Redcatt pulp with mica particles reinforcement. The advantage of this unique cone material is the very high strength to mass ratio. The woofer cone is also extensively treated to withstand harsh environments and high humidity. Metal parts in the speaker assembly are coated for extreme weatherization protection. GENERAL SPECIFICATIONS: Nominal Diameter – 320 mm (12 in.) Rated Impedance – 8 ohm Power Handling: AES Power – 550 watts PROGRAM Power – 825 watts PEAK Power – 1,600 watts Power Compression – @ -10dB – 0.5 dB @ 0dB – 1.4 dB @ Max. Power – 2.3 dB Max. Recommended X-OVER Freq. – 2,500 Hz Recommended Enclosure Volume – 35 – 45 Liters Cone Design / Cone Material – Strght. Gmtry, REDCATT Pulp Voice Coil Diameter / Winding – 3″ Voice coil Winding Height – 21 mm Front Plate Thickness – 10 mm T/S Parameters: Fs – 45 Hz Re – 5.92 Ohm Sd – 531 cm2 (82.3 in.2) Qms – 8.3 Qes – 0.26 Qts – 0.25 Vas – 58 Liters Mms – 73 g Bl product (Force Factor) – 23 Tm Peak To Peak Displacement – 10.5 mm Le (mH @ 1kHz) – 1.2 Mechanical Parameters: Overall Diameter – 315 mm (12.4 in.) No. Of Mounting Holes – 8 Bolt Circle Diameter – 298 mm (11.7 in.) Front Mount Baffle cutout – 283 mm (11.1 in.) Nominal Rear Mount Baffle cutout – 282 mm (11.05 in.) Nominal Total Depth – 147 mm (5.5 in.) Flange and gasket thickness – 14 mm (0.55 in.) Packaging info: Net Weight – 9.2 kg
