SB Acoustics SB21RDC-C000-4 3/4" Ring Tweeter
Non-resonant diaphragm design for minimum high frequency break-up and dual balanced compression chamber for improved dynamics. Copper cap for reduced voice coil inductance and minimum phase shift. Saturation controlled motor system for low distortion. Non-reflective rear chamber with optimized damping for improved dynamics. Flow optimized vented pole piece for optimum coupling to rear chamber. CCAW voice coil for low moving mass. Long life silver lead wires and low resonance frequency.
Specifications: BL Product (BL): 1.5 Tm N • Diaphragm Mass Inc. Airload (Mms): 0.25 g • Maximum Linear Excursion (Xmax): 0.5 mm • Surface Area of Cone (Sd): 4.6 cm2