Hi, Just wondering if someone can offer a bit of guidance. Many years ago I bought a Technics amp with surround capability, although I never used this feature. Recently I got some surround speakers to try out. Bearing in mind I only play music cds or mp3's (not dvd audio or films etc), I am a bit dissapointed with the very low volume coming out of the rear speakers. But then I'm thinking that maybe surround sound is only really effective with material recorded as such. Any comments appreciated.