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12"- 50w Vintage Ceramic Loudspeaker

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12"- 50W Vintage Ceramic Loudspeaker C 12 R - 8 Ω Code ZJ06090 Ω W W dB n° 8 holes 9 × 6.5 at 45° on Ø 293.5 305.5 Ω Hz 104.4 2.5 CONSTRUCTIVE CHARACTERISTICS Magnet................................. Ferrite Voice Coil Winding................... Copper Voice Coil Former.................... Kapton Cone ................................... Paper Surround............................... Paper - Integrated Dust Dome ............................ Felt Basket ................................. Pressed Sheet Steel 4.0 277.0 g µm/N Wb/m lt. mm % cm2 Ω mH 82.6 THIELE-SMALL PARAMETERS Voice Coil DC Resistance ........... RE 6.50 Resonance Frequency ............... fs 74.0 Mechanical Q Factor................. QMS 21.48 Electrical Q Factor................... QES 2.06 Total Q Factor........................ QTS 1.88 Mechanical Moving Mass ............ MMS 24.6 Mechanical Compliance ............. CMS 187 Force Factor .......................... B×l 5.98 Equivalent Acoustic Volume........ VAS 63.2 Maximum Linear Displacement .... XMAX +/-0.8 1.20 Reference Efficiency ................ η0 Diaphragm Area ...................... SD 490.8 Losses Electrical Resistance........ RES 67.0 Voice Coil Inductance @ 1kHz ..... LE 0.49 ELECTRICAL CHARACTERISTICS Nominal Impedance........................... 8 Musical Power ................................. 50 Rated Power* .................................. 25 Sensitivity @ 1 W, 1 m ....................... 93.8 mm mm g T Kg 21.8 306 25 270 1.00 1.38 5.0 GENERAL CHARACTERISTICS Nominal Overall Diameter ................. Nominal Voice Coil Diameter .............. Magnet Weight ............................... Flux Density................................... Weight ......................................... Ø 86.0 *rated power measured with 2 hours test with pink noise signal, 6 dB crest factor, loudspeaker mounted on enclosure Frequency Response on IEC Baffle (DIN 45575) @ 1 W, 1 m - Impedance +110 500 +105 200 +100 +95 d 100 +90 50 B S +85 Ω P L +80 20 +75 10 +70 5 +65 3 +60 20 50 100 200 500 Hz 1k 2k 5k 10k Due to continuing product improvement, the features and the design are subject to change without notice. SICA Altoparlanti s.r.l. - ITALY – website: www.sica.it - E-mail: [email protected] - Tel. +39-071-7958072 - Fax +39-071-7959006 20k 03/11/05