I’ve been building speakers since 2000. I’d have to say they are quite good for the price. I’m not 100% sure but they look to be a 2nd order 3 way possibly crossed at 2000hz/16000hz with quality components. That being air-core inductors on the high end and audio grade non-electrolytic capacitors. I’ve compared these to the Pioneer AJ SB22 and I’d take the Sony CS5 overall.
Being a big fan of Zeos for years and wanting to do my own youtube channel since 2013 I finally pushed myself to do it last year. If you would like to watch my amateur videos on the CS5 and maybe check out my channel that’d be just swell.