Just getting started on a budget and need bookshelf speakers/receiver now


I am poor and need some bookshelf speakers and a receiver, all for around $600-$700.  I know this is a surely a travesty for most of you because you are professionals, but... I have to start somewhere and won't come into much more money anytime soon.  I currently have Infinity Reference 2000-3 speakers and a Yamaha RX-395 receiver.  I listen to CLASSICAL music and OPERA.  I'd like to have the speakers and a receiver that can handle bluetooth, my cd player, the tv and computer.  I've looked at Kanto YU6, Cambridge Audio SX-60, ELAC Uni-Fi UB5 and MartinLogan Motion LX16.  But I don't know if these speakers are better than what I've got (I have to think they are since mine are ancient).  I know you will probably say "just save your money," but that won't work.  Can you please help me?
shaunac
If I were looking for big sound with a small budget might check out the Yamaha R-N303 ($300) and Tekton Mini-Lores (on sale $575). 

If you need a USB DAC you could add a Shiit Modi for $99 but if you want MQA might go with a Meridian Explorer II or Dragonfly DAC. 
Got to through this one in Naim Nait with monitor audio or spendor speakers, nice match
Dynaudio Xeo2

about 600-700 

self powered. Built in dac. Bluetooth

excellent sound quality. Soundstage. Air. Bass.