Hi everyone, I am a complete newbee, but I have got speakers DCM Time Window that sparked me an idea to build an antire vintage audio system. i put my eyes to start off: Marantz 2215B or Mcintosh 4100. It has just happened that here's locally for sale one 4100 for around $650. I am going to look at it this morning. Please, I need your guidance on how to do it in most proper way. I would love to be an enthusiast in the future, once I build a few systems. My DCM speakers don't have anything spec wise wisible, only a serial number: 28788 and 28789 respectiely. I am posting pictures of them. Everyone's help is most appreciated. Oleksandr.