I have just finished my final hybrid build of Rob MacKinlay's 505 Mini ESL kit and the performance is way beyond my expectations. My previous favourites were KEF LS50's and to my surprise the 505's blew them out of the water.
If you are interested you can see the full build at my website : http://robmid42.wixsite.com/diyaudiokits/er-audio-esl-speaker-kit
I can promise you an experience that could change the way you think of audio reproduction. If you are in Brisbane or Sun
Thanks for the updates @robmid
I’ve just been listening to mine again and they are beautiful sounding panels. They have the ability to place you in the room with the performers, and on well mastered recordings, can sound ethereal, while still soundstaging and imaging clearly. I love the way they do acoustic music, particularly piano, strings and voices.