total diameter: 248mm
bore diameter: 49mm
height: 55mm
the membrane material: cellulose unpolished
material suspension: the foam polyurethane
for use in speakers Tonsil GDN 25/40/3 22/55 25/60 25/60/1 25/80 ...
total diameter: 115mm
bore diameter: 21mm
height: 17mm
the membrane material: cellulose unpolished
material suspension: the foam polyurethane
for use in speakers Tonsil GDM 12/60 12/60/2 12/60/4 12/80 etc.
total diameter: 248mm
bore diameter: 49mm
height: 52mm
the membrane material: cellulose unpolished
material suspension: rubber
suspension from the top of the membrane glued.
Applications include the speaker Tonsil GDN ...
