It’s all hard to tell and I get your point, I don’t have experience in speaker designs, but I do in electronics. In general, and yes there are exceptions, but, in General, the real price of a commercial product is more like 6 times BOM cost, anything less you are losing money, but direct sales can remediate a bit of that. Like Schiit for exemple. Hi volume can also shave some of that factor, but again, ultra Hi end don’t do volume.. That was my only point. In this case BOM cost is not 1400. because with this cost you don’t have a finished product, at the very least it’s missing a crossover, and as designed, you are missing amplification, ADC, DSP, and DAC for 4 channels of audio. In my opinion, and again I absolutely have nothing against that and I value this kind of performance, but I stick to it, translated as a sellable products, we are looking at 10k$+ active bookshelves, In other words, very Hi end territory, and as for DIY, you save some, but not as much as one would think, we´ll have to know how much the Kits come at, but from what I get, the kit will still be only drivers, encolure, and connectors, so something that needs electronics in order to be consider full active speakers. Again, not a critic of this design, I’m all for it.