Active filter board for subs

[jimk04]

Interested in building a sub and I have plenty of spare amplification.

I realise why a passive filter isn't suitable for subwoofer frequencies.

I've come across this board on Ebay and the Greek seller has his own website. Has some nice PCBs.


Sub Active Filter Crossover Board, SubWoofer PCB, Auto Power ON by moutoulos ? | eBay

Is anyone familiar with this board or even the schematic basis.?

Or any other options easily available in Europe.

Not really interested in a plate amp

Regards
James