Has anyone experimented with switching the Havana

Sorry - I must be confused. I thought the original DAC comes with PCM56P-K chips... When I have a chance, I'll have to open mine up to see what is in it.

I thought the same also, upon inspection my DAC had the PCM56P chips. So after a little research I discovered that the -K was a better sounding and more linear chip. Once in place though, there was an immediate difference in my system, difference being a more inviting soundscape and sound.

I'd be curious if anybody knows any similar inexpensive tricks to try for the mhdt Paradisea or Constantine DACs?

Yes, it is not the chip model that changes. It is the grade of the same chip. The ones in mine originally were "L" grade. They can be bettered by the "J" grade and the best is the "K" grade. They are the same chip but when they are made they are tested and sorted by performance.

Hi Jd_df,

Also, I found these chips at a couple of other sites including ebay but they are about $17.00 ea. I'd love to get 4 of them for $20.00!

Thanks again,

Greg