I am on the list for a Torii Jr V2 as well. With 20 watts, the Torii will presumably get you 12dB of volume at 1 meter. 90 dB speakers are above average in terms of sensitivity and assuming a listening distance of 6 feet or so, and a loss of 6 dB at that distance, you'll be able to get sound pressure levels into the mid to high 90's+ which is plenty loud. I think the Torii Jr will allow for more flexibility and options if you choose to upgrade your speakers. With the SE84 or Rachel, you're more limited in what type of speakers will work.

Thank you for your reply. I think you are right, The Tor II Jr V2 would be able to manage my speakers well enough and even others less sensitive. The thing is that I am having second thoughts about how different sound would be, since I have never had a full tube amplifier and currently I have an hybrid one. But I thing at the end of the day, that would be a matter of taste.

Cheers, E