I have restored vintage Sansui, Marantz, Pioneer and other equipment for quite some time. I'm in my office right now listening to music (and working if my boss is on line) though a vintage Sansui QRX 5500 receiver and some B&W speakers via my computer's iTunes or a Pioneer Elite PD65 CD Player.
I love the sound. The restored Sansui sound great.
I repaired to receiver. It wasn't working at all. Then cleaned all the pots and switches extensively. They get very noisy so cleaning is mandatory. no blown caps, etc. I looked. Cap replacement is only necessary if there was extensive use and heat and if they show signs of wear. Don't fix something that isn't broken.
The Marantz 2252B receiver I restored sounds great also. I think the Sansui sounds better slightly.
Not only does this type of vintage equipment sound great, but the ones with wood grain surround panels look absolutely great. I remove the old wood grain surround and completely sand it and re-stain it and they look great.
Same with the Pioneer Elite equipment with the wood sides. They look and sound great.
A pair of working Klipsch speakers (KG-4 or Forte II) and you are good to go. Just make sure the foam surround is in good shape.
Pioneer Elite PD65, DV09, DV79AVi used as CD players or transports and you can't beat them for anything under $2000 now. And you can buy these for a few hundred dollars each.
enjoy