Which pair of speakers changed your Hifi life?

Magnepan. Ruined me but in a good way. Changed my view of what real hifi should sound like. First time I ever heard a piano reproduced well.

I think this might be the least useful of all the advice here...

The first "revelation" speakers for me were my Voigt pipes. (I built them based on Derek Walton's Voigt pipes.) Used them for two decades until the surround gave up. (Cloth surround.) These are so-called "Full range" speakers with a single driver (Fostex FE-204) that in my application (system & room) gave a 30Hz-18kHz response. While that seems as a joke to many, what is no half joke is the integrity of the sound you get from a crossoverless loudspeaker. Coupled with a Darling amplifier, I had as much joy with it as humanly possible. It took me from the slicing sausages attitude of gear comparison to embracing music into my heart and soul, and the night turned  into sceances instead of the love/hate listening sessions we are used to.

Second paradigm shift: the Voice of Lancelot speakers (which are my creation), which despite two way have the purity and serenity of single driver speakers - with deep bass (and infrasonic bass) added to the mix along with the ability to play so loud to put the fear of death in me (and that volume without listening fatigue). These two have opened up an entirely different range of experiences.... it needs not play loud, I usually listen moderate / quiet, but can cover all the experience ranges when that's what I'm looking for....

Rogers Sound Lab 3600 Studio Monitors built to compete at the time with JBL 100s. Everyone that heard then in a comparison with the JBLs bought the Rogers which were offered at a slight price advantage. It led me to realize how good a system I had and gave me the motivation to start taking it further. Still have them set up in my sound lab as a speaker to evaluate various pieces I pick up here and there. Extremely accurate with a natural sound quality. Still handles solo piano and challenging classical and jazz pieces beautifully.

Vimberg Mino D - just purchased my first high-end speaker which was the AXPONA 2022 demo.  

Fortunately for me i was bread into the audio world at 8 years old being a son of single dad. In 1982 my dad bought the Ohm Walsh 2's, a Nakimichi tape deck and a pair of Carver Ma500 cube amps..and the Walsh 2's hooked me from there. And then we had a good friend that owned a Hiend Audio Store that carried B&W, Thiel, Linn, Magnapan, Martin Logan, Infinity, Acoustic Energy, Castle and Ariel Acoustics.

  All great speakers but my Favorites that i logged 100s of hours on the Aerial 7b the midbass speed on this speaker was incredible, the B&W Nautilus 805 the way they just disapeared into the room was unreal. The Infinity Overture 1 just a incredible all around speaker and quite the Bargain for the Class that it was playing in. But my Ultimate at that time the Aerial 10t it was ugly but it quite simply the best speaker i had heard and still 1 of the best to this day.

 Being young and broke the first great speaker i owned was the Paradigm Atom V2 just loved them...but then i got the bug pretty Fast and bought the Wharfedale Diamond 8.1 the first budget speaker to use Kevlar driversmost and they changed the way i listened to music it was different having that ear education at home i still own them till this day. And finally the speaker i bought showed me what i value most in a speaker... The Totem Arro they showed me what tone and Elite Soundstaging and imaging was...till this day they are still 1 of the very best in Soundstaging and Imaging i've heard..