5" (13cm) Cell Concept Keramik- Mitteltöner

The C90 - 6 - 724 is a 5 inch bass - midrange driver with ceramic dome, being the first in an entirely new approach to accuton speaker design. An ideal acoustical center has been achieved, which is identical with our tweeters. Its novel designed underhung motor does not cover the backside of the dome, eliminating the chance for reflections and energy storage. A proprietary clamping technique provides easy mounting and adapting to individual frontplates. The low loss rubber surround and a thin fabric spider center the moving parts with high linearity. We recommend our C90-6-724 for an application from 60 Hz – 6000 Hz.

Mechanical Data:

•     Overall diameter/square: 124 mm
•     Cutout diameter/square: 124.4 mm
•     Frontplate depth: 8 mm
•     Overall depth: 55 mm
•     Motor assembly depth: - mm
•     Motor assembly diameter: - mm
•     Screw fitting:  DIN 7984, 2 mm
•     Terminal: + : 6.3 x 0.8 / - : 4.8 x 0.8
•     Shipping weight /net weight (one piece): 2.75 / 1.65 kg
•     Shipping box size (pair): 180 / 180 / 240 mm

 Thiele / Small Parameter:

•     Sensitivity Lp (2.83V / 1m): 89 dB
•     DC-resistance Re: 5.8 Ohm
•     Resonance frequency Fs: 65 Hz
•     Equivalent volume of air Vas: 5.1 l.
•     Mechanical Q Qms: 5.47
•     Electrical Q Qes: 0.58
•     Total Q Qts: 0,52
•     Effective piston area Sd: 81 cm²
•     Moving mass Mms: 8.9 g
•     Suspension compliance Cms: 0.65 mm/N
•     Mechanical resistance Rms: 0.68 kg * s

 Voice Coil Data:

•     Power handling P: 120 Watt
•     Linear excursion xmax: +/- 4 mm
•     Voice coil diameter: 80 mm
•     Voice coil former material: Ti
•     Voice coil material: Cu
•     Voice coil inductance Le: 0.14 mH
•     Force factor Bl: 6.1
•     Motor type: Underhung
•     Ferrofluid filling: no