Replacing 12AU7 tubes in a Prima Luna Dialogue integrated amp

Yes what tooblue said. You won't hurt anything as they do fit snug. If you start rolling tubes you will become an expert. Just ask me lol. 

Thanks for the confirmation, just hate forcing stuff when I am not sure.

Have seen reference to "rolling tubes"... no clue what that is/means... but will do some web searches.'

Thanks!

OK, swapping the tubes from socket to socket to optimize sound.  Fun with 6 to mix-and-match...

All sorts of new things to look into and learn.

Don't swap the same or stock tubes from socket to socket as it will not make any difference. Of course I doubt this is what you meant lol?  If you like the stock power tubes or the tone the EL34 present then you might want to roll in some driver tubes for example like some Cifte 12AU7 in the front 2 slots. These make the MOST difference and Kevin Deal will tell you the same thing. If you want a little more pop or dynamics to the sound then try a power  tube in the KT family such as a KT88/150.  Or even a Gold Lion KT77 which is closer to a EL34 but with more extension and drive. Its kind of like a hybrid tube.  However, enjoy the amp as it is and make sure it is broken in well and your ears to the stock sound and then make an evaluation. One step at a time trust me :)

Have KT88's in the amp.  Looking into the TungSol KT120's.

Will look into the Cifte's.  All this is new and I get the fact different tubes have different tonal/power quantities, but I'm not a "tweaker" who really wants to get into buying boxes of different tubes and spending days plugging them in and out and looking for somewhat subjective improvements.   I'll make a few minor adjustments but for the most part am happy with the way it sounded the past two years with the Prima Luna Silver AU's and stock KT's.  Replacing with the PL Gold. Maybe the 2 Clifte you note.

But as one's gone and time to replaced figured a bit of minor research for a simple upgrade was worth looking into.

Thanks very much for the info.