ST 728

ST 728

Supreme Tweeter, Ø 72mm, 8Ω ,120W, 91dB,  FS T:800Hz, QTS 0.36

Overall DimensionsDxH72mm(2.83")x53mm(2.08")
Nominal Power Handling (DIN)P120W
Transient Power 10ms1,000W
Overall Dimensions91dB SPL
Frequency Response1,500-22,000 Hz
Overall DimensionsAcuflex™ hand coated soft dome
Net WeightKg0.21
Nominal ImpedanceZ8Ω
DC ResistanceRe5.2Ω
Voice Coil Inductance @ 1KHzLBM0.05mH
Voice Coil DiameterDIA28mm
Voice Coil Height2.7mm
HE Magnetic Gap HeightHE4.6mm
Max. Linear ExcursionX0.95mm
Voice Coil FormerAluminum
Voice Coil WireHexatech™ Aluminum
Number Of Layers2
Magnet System TypeNeodymium Flat Pancake
Mechanical Q FactorQms0.8
Electrical Q FactorQes0.65
Total Q FactorQts0.36
Moving MassMms0.44 g
Resonance FrequencyFs800 Hz
Effective Piston AreaSD6.0 cm ²

Product Information

Features

Underhung voice coil
Large Hexatech™ aluminum voice coil
72mm IDR™ Improved Dispersion Recess
Aluminum Face Plate
Replaceable Acuflex™ dome/coil assembly
Neodymium flat pancake design magnet
High power handling

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  • Specifications