ohlala
They vary depending on which speaker. The range is from $136.00 to $2700.00, but that is the cost for rebuild. New drivers are not priced out.
Paper cones are always in break-up at all frequencies, but because of the cone profile and the fact they are paper, it is smoothed. A lay way to know if a driver is pistonic is if the frequency curve rolls off at the same rate the voice coil inductance increases with frequency. Single layer carbon fiber, woven kevlar, poly and paper have very low frequency break-up modes. The shape of a cone is primarily to smooth and spread out the break-up modes for smooth response, but does not eliminate break-up. Early articles done by Celestial, when metal tweeters first came out, compared them with soft domes which break-up at approximately 8K.
I just wanted to get you an answer, but this really has gone too far off course for this thread. Sorry for the hijack. I will stay on topic. Again, sorry all.
They vary depending on which speaker. The range is from $136.00 to $2700.00, but that is the cost for rebuild. New drivers are not priced out.
Paper cones are always in break-up at all frequencies, but because of the cone profile and the fact they are paper, it is smoothed. A lay way to know if a driver is pistonic is if the frequency curve rolls off at the same rate the voice coil inductance increases with frequency. Single layer carbon fiber, woven kevlar, poly and paper have very low frequency break-up modes. The shape of a cone is primarily to smooth and spread out the break-up modes for smooth response, but does not eliminate break-up. Early articles done by Celestial, when metal tweeters first came out, compared them with soft domes which break-up at approximately 8K.
I just wanted to get you an answer, but this really has gone too far off course for this thread. Sorry for the hijack. I will stay on topic. Again, sorry all.