Accuton C90 - 6 - 078 Only 1 Peace from Showroom

Accuton C90 - 6 - 078 is a 5 inch midrange driver with ultra hard ceramic dome. Anti-resonant cutout fills in the ceramic dome provide for damping of the 8 kHz dome resonance. A FEA optimized overhung motor design with 38 mm aluminium voice coil former guarantees low energy storage and excellent heat transfer. The low loss fabric surround and a thin fabric spider center the moving parts with high linearity. As a typical home stereo midrange driver, we recommend our C90 - 6 - 078 for an application from 200 Hz – 5000 Hz. Mechanical Data: •Overall diameter/square: 130 mm •Cutout diameter/square: 111 mm •Frontplate depth: 6,5 mm •Overall depth: 64,5 mm •Motor assembly depth: 32 mm •Motor assembly diameter: 102 mm •Screw fitting: DIN 7984, 4 mm •Terminal: + : 6.3 x 0.8 / - : 4.8 x 0.8 •Shipping weight /net weight (one piece): 2,0 / 1,8 kg •Shipping box size (pair): 180 / 180 / 240 mm Thiele / Small Parameter: •Sensitivity Lp (2.83V / 1m): 88 dB • DC-resistance Re: 6,4 Ohm • Resonance frequency Fs: 100 Hz • Equivalent volume of air Vas: 3,9 l. • Mechanical Q Qms: 2,4 • Electrical Q Qes: 1,52 • Total Q Qts: 0,92 • Effective piston area Sd: 86 cm² •Moving mass Mms: 6,96 g • Suspension compliance Cms: 0,36 mm/N • Mechanical resistance Rms: 1,86 kg * s Voice Coil Data: •Power handling P: 120 Watt •Linear excursion xmax: +/- 3 mm •Voice coil diameter: 38 mm •Voice coil former material: Al •Voice coil material: Cu •Voice coil inductance Le: 0,18 mH •Force factor Bl: 4,3 •Motor type: Overhung •Ferrofluid filling: no