Hello, I planned to upgrade my home cinema sound. I am currently using the Philips 7540 and I wanted to have a better sound. The plan was to use the 5 speakers from my old cinema system and just upgrade the receiver and the sub, so I bought the Yamaha RX-V583 and as subwoofer the Yamaha NS-SW050. After trying it I realize that the sound didn't improved at all - slightly better. Now I'm struggling if I shall buy new stand alone speakers (for front at least) of shall i just send the new acquisitions (Yamaha) back to the seller. Why am I asking this - will the sound be a lot better if I buy extra speakers or it will be quite the same sound? I already spent 600 euro. I found who speakers that I like (like they look): Nubert 511 and the Canton Chrono 580.2. BTW - I'm from Germany, so please don't recommend something that I can't find here.