Questions on next steps with my power amp

Hi there, my first time buying new stereo equipment in a while. I bought myself a Outlaw 5.1 channel power amp. I have an old Onkyo integrated amp that does not have outputs to a power amp. So my question if I want to run a turntable, CD player, tape deck and a direct line from a computer to my power amp do I need a pre-amp, DAC or processor or a combination of those components?

I'm looking to spend around $1000 or below but will spend more if need be. Any suggestions on brand/models would be greatly appreciated. Thank you all for any help and advice