[quote name='Phil Starr' post='993413' date='Oct 19 2010, 12:32 PM']Yep, that's absolutely fair
It is always difficult to know how techie to be. Using decibels rather than watts is better because it allows for the efficiency of the speaker but this still doesn't allow for the difference in sensitivity to different frequencies. I've tried to deal with these issues in my article a bit.
Each EL34 will dissipate 50W and depending on the exact circuit details and bias settings you will get more than 120W. The limit is the transformers which will warm up and limit the power if you crank up for long periods. Hence the 120W rating, I guess. It is 40 years nearly since I took one of these babies apart however so take everything I say in that light.
I think it will be loud enough and if it isn't you need to look at your speakers. My worry would be about reliability and the availability of spares. How old is this amp and how much will it cost?[/quote]
It's always going to be an amp you can repair due to the way its made but it depends if you have a good tech in your area and what he charges and how often you want to see him.