Best Cheap Amps for Magneplanar Speakers

Pro audio amps will give you the best bang for your buck.

Look for Yamaha, Crown, Soundcraftsmen, QSC, etc.

I run a pair of Soundcraftsmen PM860 monoblocks - 900W @ 4 Ohms which have no difficulty in powering my Martin Logan Spires.

A decent preamp is essential. I use a tubed preamp with this combo.

ADCOM GFA-555 monoblocks 600W $550

Doesn't get much better value than that!

http://www.usaudiomart.com/details/649328427-two-adcom-gfa555-amps/
(no affiliation)

@puiu

You've listed some very nice amps, but the ones in your list that meets the OP's budget (under $1,000) are the Rega Exxon 3's.