Innovative engineering and an advanced approach to acoustic construction are the reason for ST 728 Supreme Series tweeters' superior high performance. Their underhung voice coils move in a significantly higher magnetic field and remain there at all times during operation. As a result, the Morel Supreme tweeters provide more linear excursion, eliminate intermodulation distortion, reduce power compression at high levels, and considerably improve low frequency reproduction.
Sold in factory matched pairs
72 mm IDR™Improved Dispersion Recess aluminum faceplate
Flat neodymium motor structure provides maximum flux
Hexatech™voice coil for maximum BL product and power handling
Acuflex™coated dome with the perfect blend of internal damping and rigidity
Precisely matched acoustic loading between the dome cavity and rear chamber
Specifications
power handling (continuous/programme) = 120 W
frequency range = 1500-22000 Hz
resonance frequency fs = 800 Hz
impedance R = 8 Ohm
sound pressure level SPL = 91 dB (2,83V; 1m)
DC resistance Re = 5,2 Ohm
voice coil inductance L = 0,05 mH
effective piston radiating area Sd = 6 cm2
effective mechanical mass incl. air load mms = 0,44 g
total Q factor Qts = 0,36 (Qms=0,8, Qes=0,65)
voice coil diameter = 28 mm
maximum peak linear excursion vibration xlin = +/- 1 mm
