hifi engine

Sansui QR-6500 Quadraphonic Receiver User Manual or help required on hooking up units

Hi Hoping someone can tell me correct way to hook up cd - tape and other units to this monster amp. Why I'm confused, it has inputs for aux - tape - etc on 2 channel then next to this is the same inputs for 4 channel on the front then same inputs on the rear, these are rf inputs I dont see how this can work, do you hok up to 2 channel and it converts it into quadraphonic or do you need a 4 way lead coming out of cd player to hook up to the 4 rf inputs. If anyone has an owners manual I'd really appreciate some help hooking up stuff to this amp. It has 5 sets of speakers never seen a unit like this before. Thankyou for your help