Ive had both the KL Audio and the Audio Deske, both are fine machines, the only thing I did not like about the Audio Deske is the "exit mark" the rollers leave where a tiny amount of "dirt" is left behind. The KL Audio does not suffer from this and is in my opinion the best RCM available today.
I had the Audio Desk Pro and noticed the same issue - the Audio Desk rollers left marks in the lead-in groove causing sometime additional noise. The possible damage to the vinyl was cause enough to move away from the Audio Desk to the KL audio and is the main reason why I would NOT recommend the Audio Desk.
The KL audio does not have the roller issue and has the following advantages:
- It is easier to clean the tank. This is important to remove all deposits at the bottom of the tank.
- There are no additional fluids, rollers, etc. required. Only plained distilled water.
- While there is no filter, it is much easier to just exchange the distilled water more often. I change water about every 25-50 cleaned records.
The only downside is that the KL Audio does not work best with surface stains (e.g. finger prints), which is where the Audio Desk has an advantage due to the rollers.