2. amps-preamps
  3. 1324742480

Primaluna Prologue Two

I have just purchased a Primaluna Prologue Two Integrated and I must confess that I like what I'm hearing so far. The world of tubes is new to me and I have heard so much about how one can tweak the sound by rolling tubes. My first question to which I hope to get a straight answer to is?. Are the Primaluna tubes that come with the unit bad to the point of warranting a complete tube change. Looking at the Upscale Audio site under tubes the primaluna tubes are on par with many others in so far as price. Second question if there are any owners of the Prologue Two what tubes have you changed and what have been the benefits of the change, also what tubes make the biggest difference. I will eventually like to change all of the tubes but not at the moment, so were do I start and get the most sonic improvement for my investment.
Thanks
rossq

Showing 1 response by learsfool

learsfool
1,215 posts
 
Hi Ross - I use a Dialogue 2. It came with KT88's, and I did change to some EL-34's, but I believe the Prologue 2 comes with EL-34's anyway. I would be interesting in hearing the other posters reasons for why the preamp tubes make a bigger difference than the power tubes? I have always heard the opposite. I have never tried switching the preamp tubes. The power tubes make a pretty big difference, at least between types.

Also, if this is a new unit, and you are using new tubes, there will be a "break-in" period of about 200 hours. I certainly wouldn't switch out any tubes before that point. You will definitely notice changes over that time in the tubes that are in there.
More to discover