Zen mi nabavio.
Ove su neunistive membrane. Nije papir...
Godina proizvodnje 1979 a ko nov. Čak ni sunđer unutra nije požuteo. Kroz ovo vlaga ne prolazi.
Thiele parameters for the DC 2528:
Voice coil resistance, Re: 5,8 ohm
Free air resonant frequency, fs: 26 Hz
Moving mass, Mms: 34,4 gm
Electrical Q, Qes: 0,26 - Mechanical & Acoustical Q, Qms: 2,2 - Total Q, Qts: 0,23 - Force factor, Bl: 11,2 N/A
Total suspension compliance, Cms: 1,1 mm/N
Equivalent volume compliance, Vas: 200 Litre
Mechanical resistance, Rms: 2,55 Mechanical ohm
Effective radiating area, Sd: 360 sq. cm
Sensitivity (2.83V@1m, 20 deg. C): 91,5 dB