I started to design and build my own loudspeakers from the early noughties because I could not find something that was tonally neutral, clear and tight from the usual suspects. I tried Epos, Dynaudio, Castle, Naim, Sonus faber etc. The ones that offered a tight bottom end (Naim) sounded coarse to my ears, and the sublime midrange of the SF got lost with a flabby bottom. I thought I could do better.
I did. Eventually. My Ergo E-IIIR, E-IV, E-VII and E-IX are my best designs.
My loudspeaker building adventures made me realise the formula of a sealed woofer (preferably a big one), coupled with a superb midrange driver are critical to my listening pleasure. I don't know why I never tried the Yamaha back then. I guess that's mainly because they were already out of production and it was Japanese. The Japanese don't know how to make proper hifi loudspeakers, do they?
I've had my pair of NS-1000M now for a year, and I have not rotated any of my DIY loudspeakers back into duty. More recently, I moved them closer to the backing wall, which helps them extract a bit more gravitas. They continue to stun me with their utter midrange clarity and seamless crossover. They are not as extended at the very top end as my Hiquphon OW-1 equipped designs, but they are absolutely effortless in reproducing impact and nuance at the same time. My are keepers, unless I find another pair that is more mint than the ones I have.
I don't know what to do with the four pairs of DIY Ergos I have at home.