MHDT Havana owners.....question

What tube? It makes a big difference. You will probably get the most recs for Bendix 2c51 and Western Electric 396a. In my experience thev are indeed the best. WE bigger soundstage, more extended, Bendix richer and more tonally pure. Let it break in and enjoy! It's a really great DAC.

I just replaced the PCM56P chips with the K grade versions for a solid improvement.

$13.56 each + shipping here:
http://components.arrow.com/part/detail/84608S9189437N7713

No soldering required, just pop and plug!

Recent thread on this here:
http://forum.audiogon.com/cgi-bin/fr.pl?ddgtl&1270885459&openfrom&1&4#1

This is also discussed in the huge Havana thread on Head-Fi along with a host of other, more advanced, mods, the most common being upgrading output caps.

Onetwothreego where did you get the Russian 6n3pe tubes? I want!

Thanks for the tip on the Russian tubes!

Did you guys get charged sales tax? Don't think these guys in RUSSIA are supposed charge California sales tax. Granted, Paypal source is US, but in MN. +9.75% at that -- I don't know of any sales tax rate that high in CA. Yeah, 48 cents, big deal, but it's the principle...