The information on DIY audio.com about the clocks in the 93/95 is incorrect. The main clock is the 27meg clock that is located underneath the board. The one that most are changing is a 25 meg clock that controls the laser functions. However, both clocks affect the sound. I have been changing the 25 meg to good effect but I am sure changing the main clock would make even more difference. Thisby Ric Schultz - Vanity93HD & Lite (discontinued)