Speakers for my Yamaha Amplifier...?

I'll echo what Paul in SD said. I was appalled the first time I opened up a Bose speaker and saw the junky components they used. I build (or rebuild existing) all my own speakers so I don't keep close tabs on what is commercially available. HK and JBL are now pretty much cheaply made consumer level speakers from what I have seen. Polk and Klipsch seem to have maintained their build quality over the years. If you want good speakers go to a shop that specializes in what we used to call Hi-Fi and is now known as Home Theater. Make sure they aren't a Bose dealer as that company forces dealers to push it's products. I should qualify my statement that don't keep close tabs on what is commercially available with the statement that I have done considerable research on Bose speakers and they are indeed truly appalling from a standpoint of accurate sound reproduction and value. This is particularly true of their "Acoustim" line.