There were a number of useful posts in this thread that are now missing. My thanks to those of you who stayed on point and offered useful information. I've learned a great deal about my Onix SP3, tubes and accoustics which was the reason for the original post.
The update - The Druid break-in has passed 75 hours and there have been 4 significant modifications as suggested by agon'rs to correct the upper vocal issues. 1)Toe in is best when the cones are lasered into the sweet spot. Dispersion is better than other speakers in my collection even at the wrong position. 2) Tube change to the Mullard 12ax7 Reissue (I realize this was not NOS and I'm looking for that replacement now) 3) Burn-in time to 150 hours will probably yeild about 95% of the full potential. 4) Room treatment was nearly complete last night with a studio foam kit. The results are striking as far as room accoustics - it's as if I was listening with my hands cupped around my ears before. Now the sound has a greater presence and intimacy with much less listener fatigue.
I do apologize for the lack of an audiophile vocabulary.
Give me a little more break-in time.
I've also learned how interesting it is that Warrenh is the only post remaining? Warren was one of the biggest offenders for not staying on point so I'm not sure what the elimination criteria would be.
However, thanks to all who previously posted the useful information. Dealers who spin a thread may or may not offer useful information. At least one forwarded useful link re: room accoustics.
Peace All
