The best speaker you ever heard?

Hifisoundguy - Dude I just Super Glued some 901's version 6.12 to some ear muff's and I'm blown away buy the dynamics, transparency and holographic sound. I've had my receiver customized, so now it goes to 11 on the Volume. KC & The Sunshine Band has never sounded so good.

The only drawback is these new 901 based headphones are a little heavy, so I can only listen to one song at time.

Dear Argyro, I think that you have to read once more the headline of the thread. It is "the best speaker you ever heard". That seems to be only a personal opinion, isn't it?
When it comes to listen to music using other speakers, (Tidals maybe), who knows, I may like them better!
Until that time, I'm staying with my beloved SHL-5s.

Try gamut s9 speakers they sound amazing. The price is not cheap not by far better than anything I listen in my 25 years of music.

Vandersteen 7's playing analog 50's jazz. Quad ESL-57's are a close second, but 1/100 the acoustic power, and (literally) half the bandwidth. I once owned a pair of Quad's paired with B-139 based transmission line subwoofers and Sequerra T-1 ribbon tweeters. This solved the bandwidth problem, but not the acoustic power problem.

Both of these speakers display a delicacy with midrange and high frequency sounds at the " pppp" volume level that I've never heard elsewhere. Both are remarkable loudspeakers. (BTW, Richard V still considers Quad ESL's as his reference).

Dynaudio Sapphire. Doesn't matter who says I swear by the Dyns although this particular one is not as costly as some of the names mentioned here. Unfortunately, my pockets aren't deep enough to go beyond that. I am sure the Evidence Master would sound much better but that's all there is (quoting Dynaudio's tag line). I used to build DIY speakers or do speaker mods and what I found is that some of those astronomically-priced speaker manufactures actually uses OEM Dynaudio drives. I am not going to mention names since it might piss some people off.