Just received my used Cyrus 8Vs2 int. amp. Its replacing a Marantz pm 66ki. Bit embarressed asking this question - here goes. My Marantz had plugs to connect speakers. The speaker outputs on the back of the Cyrus are very different and in no way would accomodate the plugs i currently have, even with a hammer lol. Stupid I know but please help. While im makin a full of myself. The chord interconnects cd to amp i have are red and black? how do i know what is positive /negative in this respect and do both interconnects go from amp to cd. My cd is an old 63ki sig marantz. Im 77 and used to analogue, any help appreciated.