Thanks for the advice Alan!

One other question. I noticed that the VP150 is 6ohm. My Yamaha receiver has a setting for 6ohm (for speakers 6ohm and higher) and 8 ohm (8ohm and higher). Right now I have my receiver set to 6ohm since all speakers are either 6 or 8 ohm. Should I leave it like this or should I change it to 8ohm? I'm not sure which would be better.