APL 3910 owners, has anyone tried APL upsampler?

I see that a company called Hot Rod Audio Mods is offering an APL clock package for the 3910. Can any of you speak to what relation Hot Rod has to APL? They say that just replacing the 3910's clock with the APL clock is the biggest improvement that can be made to the 3910. Can anyone speak to this. Thanks,

Pardales,
Hot Rod is a division of Verastarr, as far as I understand. You might ask Mike (www.verastarr.com) and/or Alex (www.aplhifi.com) for the scoop.

Pardales, I am sure that Mike from Hot Rod Audio Mods can give a better explanation of why he decided on using my Master Clock.

"They say that just replacing the 3910's clock with the APL clock is the biggest improvement that can be made to the 3910. Can anyone speak to this"

What this means (and Mike can confirm it) is that a Denon 3910 upgraded with fast Op Amp modules, Black Gates, Harris Diodes, Super Clock 3 and other "exotic" parts can not hold a candle to a stock Denon 3910 with JUST my Master Clock installed.

Of course, Hot Rod Audio Mods are friends to APL Hi-Fi and our products are not in any competition.

Regards,
Alex

Thank you, Alex. That is what I wanted to know.

My wife and I apparently have only the second unit with the Upsampler. We've had the player for just a day--not much time, clearly--but thus far we prefer it with the Upsampler 'off' more than we do 'on'.

What we've noticed so far:
Upsampler ON:
The music sounds more blended
Softer edges between the instruments
Midrange feels slightly more airy

Upsampler OFF:
Better clarity
Images clearly focused
Distinct separation of instruments

I know that the choice between the two will be a personal one, and we could certainly feel differently as the player breaks in. Depends on the specific song as well as to whether or not we prefer one effect or the other. I will say that right out of the box, the player itself is ridiculously good. I know that's an odd way to put it, but those are the best words I can find for something that plays this well.