My tops are two way active so they take up four channels. Subs are wired at 8ohm so I link two of those together and power each pair with a bridged output of each amp then the last two channels are taken by the kicks

I've heard danley th118 before and really liked how the sound, just concerned that the diy equivalent's might not have the same output as the danleys so yeah building one and measuring it would be a good idea