Which pair of speakers changed your Hifi life?

Epi 100.  

Showed me how a simple, inexpensive, well-designed speaker can sound so natural, clear, and non-fatiguing that I prefer it over almost all other speakers for home use.  Over the years, it has kept my "upgrade-itis" under control because so few speakers actually sound better, to my ears.  I recently auditioned speakers up to $7,000 and while I suppose a couple MIGHT have sounded "better," for the most part they just sounded like the Epi or maybe the Epi with a quality modest sub.

I did end up with a Heresy IV, but for the reason that they sound DIFFERENT, and I wanted to have an alternative experience with my familiar music, at least for a while.  The Epi 100 is not going anywhere, though, and is in another room now, but will be rotated in periodically to the "main room."  

I updated them with Human Speakers parts, but the basic design and sound remains the same with maybe a bit more heft and tightness to the bass and a bit more dispersiveness and clarity to the highs, but only subtle, since Human parts are designed based on Epi design.

Am I open to other speakers?  Of course, and over the decades I've searched for an Epi beater, but nothing has been compelling enough to change out; I have changed out, for a while, with various attempts, but over time I keep going back.  

It's nice not to have to worry about "are my speakers good enough," once you've found your niche for your home.  Saves a lot of anxiety, and of course a lot of money.

@timintexas 

You were not wrong about the Epi, except for burning them!  

The Epi 100 is still around, and can be updated as I describe in my post above... or, get the Human Speakers model 81.  Even the 180 is still around, but I find the 100 to be the best all-arounder.  The 100 reaches down to about 44hz, so if one adds a small quality sub, think SVS 300micro or something, to handle less than 40 or 38, then that's it: done.

The Epi tweeter is still one of the very best; you were right on track.  And it is amazing what the 8" woofer can do in a normal home... tight, accurate, and it just reaches in and tickles the eardrums.

B&W Matrix 801 Series 2...still have 'em, now with North Creek crossovers...lifer speakers :)

Dahlquist DQ 10's.....listen just about every day to them.

Early on maggies sounded impressive...heard Bose 901s in college that made me nauseous...in grad school listened to lots of speakers but only the Acoustats sounded good enough, so bought the Spectra 22s...still have not run across speakers that I love as much...still listen to the 22s every day but do have some Martin Logan Source in a bedroom system that are decent...anyone make something like Spectra 22s today? Maybe for $20K instead of the <$2K I paid back then?