Thanks for info,
I was browsing around at part express to order some coupling caps for aikido octal preamp and this amp. Then wonder why this amp uses 0.1uF while other amps use from .22uF to .47uF so I thought .1uF is the max. That's great. I will try 0.47uF to see how it sounds.
I used to have Revel Studio2 with Mark Levinson 532 and Benchmark DAC2. Recently sold the Revel Studio2 for JBL Everest DD67000 so I thought this speakers will work well with tube. My first plan was Ikezilla so i did collect all the info I need then realized I needed to find a massive PT which no where available unless to get 2 PT to drive all the tubes. If this 100W is doing good, I will start Ikezilla for more power. It would be my first time to experience with tube sound.
Actually, I don't listen too loud so I guess 100W would be enough. As long as it can drive this speakers, then I am happy.