u/Electrotot0

I recently got my hand on some speakers stored in my parents’ attic. I'm looking for an audio amplifier to go with them but I fear I am missing something.

I have 2 passive speakers with 2 RCA input each (30W 40Ohms) and one active sub woofer (1 RCA).

Pictures attached are a schematic of what i seek to achieve and the connection of one speaker

I started looking at 2.1 amplifier but I don’t nmknow how to handle the 2x2RCA.

Am I on the right track or is there something I need to search for specifically ?