Hello. So I have a vizio 5.1 sound bar that broke but the speakers are still good! So I gutted it to use them to build my own speaker. I know it won’t sound amazing this is not for me to learn how to do it.

This left me with 3-2.75″ full range speakers 20w at 6ohm and one 5″ sub 40 watt at 4ohm. I purchased a drok TPA3123 on amazing. Says 2x20w and 40w sub output.

My question is what power supply should I use and do I need more power than this or more crossovers? A bit lost

Thanks for the help.