Bra om nåleslipinger.... ett sted på videoene eller sidene her kommer det fram et levetiden på en microline/shiabata osv er ca 1000 timer.. En pickupvarer ikke 40 år nei.,med et par timer omdagen så er MC PU utslitt på på 1-2 år...!! Hvor ofte bytter folk PU mon tro?
Stylus Shape Information | Soundsmith (sound-smith.com)
So we know that the more extreme line contacts reduce wear.... but what is the difference?
Apparently according to Jico (manufacturer of the highly regarded SAS stylus), the amount of playing time where a stylus will maintain its specified level of distortion at 15kHz is as follows:
- Spherical / Conical - 150hrs
- Elliptical - 250hrs
- Shibata/Line contact - 400hrs
- SAS/MicroRidge - 500hrs
This is not to say that at 500 hrs a SAS stylus is "worn out" - but at that stage the wear has reached the point where distortion at 15kHz surpasses the level specified by Jico for a new stylus. (Which I believe is 3%).
Some manufacturers have traditionally defined a stylus as being "worn out" when it starts to damage the record... in these terms the figures provided by Jico can at least be doubled, and in some cases quadrupled.