This DX20BF00-04 tweeter features a 19mm 4 ohm voice coil, a damped silk diaphragm with large surround roll to produce a low resonant frequency, and a ferrite magnet motor which adds heat sinking for power handling capacity. The faceplate features recessed mounting holes to minimize reflections.
Specifications
power handling (continuous/programme) = 60 W
frequency range = 2000-25000 Hz
resonance frequency fs = 822 Hz
impedance R = 4 Ohm
sound pressure level SPL = 90,1 dB (2,83V; 1m)
DC resistance Re = 2,81 Ohm
force factor BL = 1 N/A
voice coil inductance L = 0,01 mH
effective piston radiating area Sd = 4,9 cm2
effective mechanical mass incl. air load mms = 0,2 g
total Q factor Qts = 1,27 (Qms=2,24, Qes=2,93)
voice coil diameter = 19 mm
maximum peak linear excursion vibration xlin = +/- 0,1 mm
