Magnepan 1.7 i - Amp suggestions

I have the Magnepan LSRs and am v. happy with my 2 Schiit Vidar monoblocks and Freya tube preamp.  I have not had any problems with overheating as kingbarbuda mentioned.  Used Brystons can be found sometimes within your budget, and those are highly regarded, as mentioned.  Also, Paul at PS Audio believes that their D-amp would be "enough" for Maggies.  No personal experience there. 

Anything tube. I have the 1.7i and I drive them with a 100amp ARC amp. And have no issues. I use a Goldenear sub and I love the sound. But like all high end audio it doesn’t lie. Bad recordings sound bad and great recordings sound great. 

Keep listening

Agree that you should avoid anything Class D unless you can audition it first. None are good enough to gamble on anyway. The best ones merely match a decent class AB amp. 

The Halo Integrated is a decent match for the 1.7s but a Yamaha A-S2100 would be better. It produces less RMS wattage but has a much larger power supply, which is what really matters when it comes to Maggies. The same reason  why the poster above got better results with a Prima Luna over the Rogue Pharaoh - it's all about the power supply. 

I believe magnepan advises avoiding class d amps.

Johnto is spot on. My class D experiment with 290w mono bridged also failed and the Maggies clipped the amps at 82db in dynamic passages. 
What I found was that the key is the Power Supply and the Capacitance.  My Odyssey has Dual 400 VA transformers, 180,000 AuF Memory and provides >60 amps delivered current. Hence, the Maggies sing without the slightest struggle. Choose Class A/B direct coupled, Loads of memory & current delivery and you will not have to learn the expensive lesson buying again. Do not get lost in looking at Watts but focus on power details and the ability of the amp to store enough power to handle dynamics that push you down into 2ohms.. Bryston & Odyssey will do nicely. Consult with other Magnepan owners as well.  Cheers.