Wednesday, 8. February 2012

25 SD 1

25 SD 1


This is the big brother of the 19SD1. It has very similar sound characteristics, is however due to it´s larger construction method a classical representative of a 2-way solution. The additional volume in the second magnetic ring results in a low level of resonance frequency, thus maintaining the crossover effort for attachments at a minimum component requirement.

Technical DataSymbol25 SD 1
Nominal impedanceZn8 Ω
DC resistanceRe6.8 Ω
Resonance frequency 1 Wfr1000 Hz
Suspension complianceCMS
Mechanical Q factorQMS
Electrical Q factorQES
Total Q factorQTS
Equivalent air volume of suspensionVAS
Mech. resistanceRMS
Total moving mass (incl. air mass)MMD0.22 g
Effective piston areaSD6.8 cm2
Voice coil-Ø25 mm
Voice coil diameterAluminium
Voice coil lenght1.5 mm
Voice coil layers2
Voice coil inductanceLE0.02 mH
Magnetic inductanceB1.8 Tesla
Force factorBLxI2.87 Tm
Height of the gap0.5 mm
Voice coil-Ø2x 72 mm
Height of magnet2x 15 mm
Mass of speaker0.8 kg
Characteristic sound pressure level SPL 1 W / 1 m90 dB
Rated power100* W
Frequency range2500 - 22000 Hz
Cone materialtextile

Technische Daten (PDF)

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