+10
Any sonic gains come from a active crossover. Class Diddly amp boards stuck inside the vibro cabinet did no favors.
An additional thought. Good amplifiers put great thought and effort into reducing physical vibration control. Putting the amplifier into a vibrating speaker box is completely antithetical to this.
32k for this plain jane ugly garage diy box is some grand level of weasely pricing, mmhmm.

can offer my view on the actives made by ATC as I have demo them and considered that path, I truly believe, if the manufacturer did their work right, active speakers are truly the way to go. and what I mean by that is the synergy of their speaker and the amp they put in is perfect match in all terms, sonics, prat, tonality etc. AND that what I heard in ATC active line.

