best amp for a Maggy 1.7i

Schiit Vidars in Mono mode, but it will require balanced output.  Plenty of current, plenty of power for a room that's an appropriate size for the 1.7s.

On the other hand, I've had folks recommend the Crown 300A with a recap job for the 1.5 and 1.6 Maggies.

My Vidars should be in service  with my 1.6 QRs soon.

Starke AD$-320. Superb with Maggies and any panel/open baffle speaker.

I've had good results with a Class D Hypex based amp, the March Audio P502 (discontinued), driving my MMGs.  It puts out 500W per channel and enough current with I believe 27A.  I think the NC502MP module is a good match, so offerings from VTV, Audiophonics, or Buckeye Amps should do nicely.  Even better is the NC1200 module, VTV offers a stereo version at under $1500.

I had used a 7 channel NAD to drive my 1.7s.  The sound was OK.  I then bought an Emotiva XPA3 and that definitely sounded much better than the NAD with much more clarity and detail.  Was thinking of trying VanAlstine monoblocks next.  These would be above your price point but they also make a 60Wx2 channel for $1000.

Never owned ML’s or Maggie’s, if they are at all bright, those emo amps would not fit well. They are overly bright in treble, mid and have high gain, which promotes tweeter hiss, but you don’t need worry about that.