Magneplanar 1.7 and low power/tube amps

BETTER generally trumps MORE.

You decide where the equities lie.
If you don't play at nosebleed levels, you may just do well with <100 watt tubes.

21 watts will lead to unhappiness. If you want to listen to very quiet music, don't waste the money on the 1.7's either. I've tried maggies with 12, 17, 20 & 40 watt amps and was always left wanting more. No bass for starters and they break up way too easily.
I like Maggies but not without about 200wpc or more...

Thanks for the info folks. yes i can cart the LFD down to try it as its not a big unit. The AS is too big to take. If the LFD handles them the way i like it may have to do. I'd just like a set of speakers that i can pair up with the AS also as it is a very very nice amp. Maybe the Maggies are not it..

I would say that I didn't like my Maggies playing at low volumn. I think both pair liked to play large scale music in a large way. But that's just me.

We demo'd a bit of my usual listening CD's, including the stuff i really enjoy listening to and which is unfortunately poorly recorded. The volume was not too high, close to what i would play when i have free range at home in my current setup. I am going to take the LFD down there and give it a whirl to see how it stands up. In both cases these amps i have drive better than the wattage suggests but i am not expecting them to drive at high dB. The Maggie's really impressed with the soundstage and clarity. It would be great if i can get enough out of them with one of my amps.