Fountek FR58EX

Fountek FR58EX

• neodymiun magnet
• +/- 2.9mm linear excursion
• high power handling
• aluminum cone
• Neodymium magnet 
• 20mm voice coil
• low distortion, fast transition

Specifications

• power handling (continuous/programme) = 15 W
• frequency range = 130-20000 Hz
• resonance frequency fs = 134 Hz
• impedance R = 8 Ohm
• sound pressure level SPL = 82,3 dB (2,83V; 1m)
• DC resistance Re = 6,4 Ohm
• force factor BL = 3,8885 N/A
• effective piston radiating area Sd = 17,35 cm²
• effective mechanical mass incl. air load mms = 1,914 g
• equivalent volume of compliance Vas = 0,315 l
• total Q factor Qts = 0,548 (Qms=2,603, Qes=0,694)
• voice coil diameter = 20 mm
• maximum peak linear excursion vibration x_lin = +/- 2,9 mm
• mounting diameter d = 51,34 mm
• overall diameter d = 62 mm
• mounting depth (not countersunk) t = 33 mm