I just bought a Behringer BX600 to use with my Alvarez 6 string. I just wanted to give a quick review of the amp. If someone is looking for a good practice amp (headphone out and rca in for cd play-along, etc.), definately look at these. 4 band EQ (bass, low mid, high mid, treble) allows me to get alot of really good sounds out of the amp. Plenty of power for a practice amp. It would even handle small gigs (as long as the guitarist didn't overpower everything). The amp on 10 was pretty loud. It even handled the low B very well for a inexpensive combo. An actual note, and not just a rattle and thud. I was able to find it in a local store, and they actually agreed to match the online price I found. I now have a complete rig for only 400 total. If someone is new (like me) and doesn't have a bunch of money to spend, this amp would be a good buy.