High value, giant killer speakers?

+1 for Magnepan .7, but them new, they’re a nightmare to repair. I swapped amps but today they’re running with a mint B&K 2220 I bought for 250$. Ordered in the same color that my room’s walls to get WAF. But depends on your music and the source, mine being Bluenode 2i with Tidal straight into the amp... 

I'll throw out the Anthony Gallo Acoustics Reference 3 series (.0, .1 and .5) for discussion.

These speakers were/are highly regarded by hobbyists and the audio press alike.  The MSRP was ridiculously low given their capabilities and these speakers are an absolute steal on the used market today.  My 3.1's have been my reference since buying them more than 15 years ago.  Someday, I hope for them to be the weak link in my system holding me back from the next level of performance so that I can justify buying something else.  ;-)  I drive the second set of voice coils in the woofers with a dedicated amp which allows for the speakers to nominally reach down to 22 Hz.  I am sure there are better performers out there (and some don't care for their aesthetic), but I would love for others to chime in with a list of contenders at a similar price point.  If other such gems are out there, I'll put them on my short list and would love to hear them.

Here is a blast from the past review that is typical of the fawning elicited from the audio press back in the day: http://https//hometheaterhifi.com/volume_14_1/gallo-reference-speakers-1-2007-part-1.html

Good topic, OP.  Thanks for suggesting it.

Cerwin Vegas  CLS-215, two 15 inch woofers in a each cab, very efficient
replaced by xls-215's best 1500 you will spend
forget the exotic crap you are all chasing your tails

magnepans are a joke, no bottom end and you will need 300 plus watts per side to get them going

Piega Coax. End of story