I have an old Nad 3020e amp had it from new with technics PG4 CD player and mission M30 speakers on atacama nexus stands in a room 15 feet by 10 feet I love electronic music omd alphaville ultravox etc its sounds nice but would like more bass and power ! I read a lot of speakers now best bi wired but can you bi wire my old Nad amp as ports on back very narrow ? Is it best to change amp and speakers ? I look on eBay regular thank you for your help