i was used to run my speakers with a small kenwood ministereo ( 90watts output) wired to a 120 watt target some kind of real old computer speaker thing, and a brandless amplifier, with 360 watts output, and another sony home stereo sound set ( real old but its a godness) its 500 watt output, and my newest a philips home cimema set,m 300 watts output, so 1170 watts total power, otherwise, im underpowered, all the speakers together are 2300 watts, and the sub itself can handle up to 2500 watts... however i've blown up my amp with 360 watts, so now ima get a car amplifier of 2000 watts, and wire it to my speakers.. unfortunaly since ive blown/burnd my amplifier, my bass sounds/kicks like crap, still alot of bass, but not what im used to... throatshaking and things
most speakers are on 4 ohms, sub works at 8, however 4 is recommed, it sounds way better when it runs on 8 probably cuz the woofer is designed for cars, so my bedroom is alot bigger, and its moves more air by 8 ohms
oh and i also set the equalizers myself, tbh im pretty good at it, alot of bass, and also enough mid and high tones so you can actually hear the music real clear, even though alot of bass is in presence
and the 2 missing speakers, (3way speaker) are not shown on the first picture, but you can see one of them on the third picture:p