Hi guys, I am looking to buy a AV receiver so right now I have an Aiwa pro-logic shelf system and I am running my infinity IL25C(center), IL10(main), Acoustic research AR215(surround) and a Hitachi sub. The problem is that I am hearing a noticeable distortion on mid to low volumes in dialogs and on low volume in vocals while playing music and It gets better on higher volume. Do you guys know if its my speaker or shity Aiwa? I checked infinity at the store they sounded real amazing. I hope it is my Aiwa and will be fixed when I buy a new receiver.