I would not use a small tube amp on the MMG's less than 35 watts per channel. I have read that some individuals in the forum had been using 16 watt triode amps on their MMG's. Just last week a guy had a pair of 40 watt tube amps on the 1.6's.
I'm using a 35 watt modified Dynaco Stereo 70 to drive a pair of Magnepan MG12QR's. It actually does a wonderful job driving them. My room is only 13 x 14 feet and I have the system placed on the short end of the room. I also have 2 ASC tube traps in each corner. My biggest challenge is that my Stereo 70 is rather ripe, fat, bloated, call it whatever you like but it's to fat for my liking on the bottom end. So I have a set of filters that plug into the input my tube amp and it rolls the MG12's off around 40 to 50 Hz. This allows the Stereo 70 to drive the Maggies with less of a load and the Stereo 70 does not have to produce any deep bass allowing it to do justice to the upper bass, midrange and top end of rhe MG12's. The midrange is very clear and open as well as detailed. I have a Dali S1.2 that I just got yesterday (Saturday 3/29) and it does a wonderful job from 40 Hz down to 29 Hz. It blends very well and has the speed to match the Maggies. It is a sealed system and there isn't any bass bloat or noise coming from the ports and into my room. It appears I have found magic with that combination.
Since you are using an integrated amp I'm not sure you can do what I am doing.
You amp puts out about 25 watts and that in a small room would be good to very good if your integrated is electrically solid with all the critical parts upgraded. If you are in a room bigger than mine you may have a few issues and maybe drive the amp into clipping.
Based on everything I have been told and what the manufacturer reccomends the answer would be no to driving the Scott 222 and MMG's. But will the amp drive the Maggies and sound pretty good; the answer is yes. I also had a 150 watt high solid state amp. It stayed in my system for about a month or two and I sold it. All of my audiophile friends said the Dynaco sounded better than the High End Solid state amp.
My system:
Van Alstine Super PAS 3si (Vanalstine design not Dynaco), Transition Audio Design interconnect 2 meters, Dynaco ST 70, Kimber 8TC 5' pair, Oppo 980H DVD with Scott Nixon tube DAC, Systemdek IV TT w Rega RB600 & AT OC9ML II, Rotel phono and DB Systems Phono along with the Dali S1.2 Subwoofer. A very modest system but very very musical and detailed I think!
If you buy a pair from Magnepan you get a 60 day trial. If you buy from Audiogon for around $350 to $400 you will surely get your money back if you don't like them. No lost but much experience gained. It's a risk worth taking.
I have had speakers from $500 a pair to $5000 the past year and the Maggies are by far the winner among them all. Alot of it has to do with your room too. Soon I will place my virtual system on Audiogon.
Don't be afraid to try the Maggies. You won't loose anything by buying a pair. Warning if you like your music very loud you WILL need more power.