B&W CDM1: Poor treble
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Hi
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Hello,
my pair of CDM1 - bought in 1998, seldom and always played with low levels - has a very weak treble response.
Testing with white noise shows a sharp frequency cut off below 8 kHz, whereas nominal cross-over is 3 kHz.
A German B&W-group manager told me the tweeters' ferrofluid might have become thick so the coils would not be able to swing easily enough.
He told me this would be the result of thermal overload due to too high amplifier output.