My brother's mk1 P3's are around 22 years old and have given great service but recently he had noticed some distortion from one speaker. As I used to work for Harbeth and actually built his speakers I said I'd take a look. Immediately it became clear that one of the the Seas mid/bass drivers was the culprit. There was a very slight roughness to the cone movement, not enough to point to the coil burning out, more like a fragment of dirt rubbing. I stripped the unit down and after carefully moving the cone back and forth beyond it's normal range of movement the roughness seems to have gone.
I'm really hoping this has done the trick as Seas no longer makes these drivers and the current version used in the P3 ES3 is different. I'd still like to replace both drivers but can't find a suitable replacement. Any ideas would be welcome.
The photos are of the dodgy unit.
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