Hello from SW Finland

Hello!
Very light background in diy from building Eurorack synth modules and from hanging around with circuit bending and sound art people. Newbie woodworker, synth noodler, ex-dj, ex-concert & event photographer, hobbyist fruit and berry gardener, some sort room acoustics weirdo/nerd, wannabe dry stone waller.

I have a small dedicated listening/media room in an old wooden house with quite studio'ish diy acoustic treatment. Current speakers are my first diy speakers, B&C 15CXN76 elements in 120l (net) bass reflex enclosures (Piste15 kit by Samu Saurama/audiovideo.fi), a stereo pair of Eminence LAB12 in ~32l closed enclosure sub/low bass speakers to compensate speaker placement related problems and a Genelec 7360 to bring some roundness to the lowest half octave with nice support from the room. Livingroom has Genelec 8340.
As an old raver / dj I'm interested in "party mode quasi-PA, but HiFi" speaker builds and I'm aiming to build a small sound system for my wife's 50th birthday party, she is a lot heavier basshead than me, so I need all the Emotional Support SubWoofers.