Dear @inna : If you want first rate quality level performances on what you are listening and want to preserve in mint condition your LP's then the ideal number is 1K hours and no more than 1.5K hours.
Could be interesting that a cartridge designer as @jcarr could chime about maybe not only me but almost all are wrong on the subject.
R.
Could be interesting that a cartridge designer as @jcarr could chime about maybe not only me but almost all are wrong on the subject.
R.