Slightly missing my point here but not having heard these speakers, or many commercial designs for that matter, certainly in a useful memory period, I would have to see if I could hear an overall improvement in speakers claiming to be tuned by ear and others who pirmarily used measurement.
I have a sneaking suspicion that a well designed speaker is a well designed speaker no matter how it was arrived at and the "by ear" bit is just some marketing chat.
It would be an interesting test.
It’s a bit like the mythical old boy who tunes engines by ear. No doubt they exists but I’ll go for a fully kitted out Ferrari computer based workshop any day.
Single spur balanced Mains. Self built music server with 3 seperate linear PSU, Intel i5, 16 GB RAM no hard drive (various Linux OS). Benchmark Dac2 HGC, single ended XLR interconnects/Belkin cable. Exposure 21RC Pre, Super 18 Power (recap & modified). Modded World Audio HD83 HP amp. Hand built Monitors with external crossovers , Volt 250 bass & ABR, Scanspeak 13M8621 Mid & Scanspeak D2905/9300 Hi. HD595 & Beyer 880 (600 ohm) cans.
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
-Bertrand Russel
John.