Powered speakers show audiophiles are confused

@kenjit no crossover between the amp and speaker is a big deal, you didn't say what frequency you were talking about 20hz or 20khz it makes a big difference in impedance. Also you didn't mention that  the cross over was made designed at speaker level not line level like other electronic circuits, you also didn't mention how complicated that crossover was, perhaps you didn't know that today there are some very complicated crossovers for speakers, when was the last time you looked at a speaker ad in TAS and it didn't mention is wow wow wow crossover technology. Wait maybe you forgot to mention the other parts of the speaker, you did mention low frequency, there are other frequencies also thousands of other frequencies if we were to design a speaker with an amp with perfect driver matching it would have an amp for each driver but then you would have 20k amps and a bit of a phase problem. When companies design speakers they add components after the original design to fine tune the overall tone of the speaker this is now done like it was 100 years ago with individual components set in the circuit after the amplifier before the signal gets to the speaker. If this could be done at line level the tuning can be done with a programable chip, yes DSP. Huge amps can sound great in undesigned amp / speaker systems but designed amp / speaker system is a much better way to strive for the best sound. Hope that is clear. Do you realize you are arguing for getting lucky when putting together the two most important parts of a sound system. BTW it is impossible for a undesigned amplifier to be as efficient as a designed speaker if you have more than one driver. 

@mijostyn another note you can use non class D amps in powered speakers my little Elac Navis powered speakers use BASH amps (hybrid) for the low and mid frequencies and an A/B for the high frequency, (300W total). These speakers sound great for my computer along with a JL sub under my desk for $4k you can have a very nice little powered system, plus a small DAC.

@donavabdear  Tuning the sound at amp level and line level are not the same so you cannot substitute one for the other. Some audiophiles may prefer to tune at one level rather than the other, It all comes down to what is best for your ears. 

What is your definition of perfect driver matching? And how would it be measured?

@kenjit Sorry I’m really not communicating well at all, my fault. I’m only talking about the engineering design of the speaker amp combination and when you use powered speakers in which the amp is literally connected with no speaker cable to the amp the crossover is in the circuit before the amp. This gives many benefits one of the many benefits is perfect speaker dampening and transient response. Being able to design the crossover and other circuits that are 600 ohms not 8 ohms allows you to do many things to more perfectly tune the amp to the single speaker driver. Every driver in the speaker needs it’s own amp that is designed for the particular drivers and frequencies that driver will produce. To be more clear in this system there really isn’t a crossover at all it’s simply a simple circuit that only allows frequencies in which the driver is designed for. Hope that’s clear

+1 Yamaha HS8; great for the money. I helped each of my sons set up small EDM production studios with a pair of HS8s in each. For myself, I love ATC SCM20ASL Pro Mk 11 actives in my small studio.