There is no answer to your question, instead of worrying about specs. try and find an amplifier that will mate to you speakers well, synergize with your preamp/source and most importantly suits your listening preferences. The tube vs. ss watts debate has been argued adnauseam and there still is no conclusive answer. Some people prefer tubes(like myself) some prefer SS, I think the subconscious influences the perceived power of an amp more then if its tube or ss.
