I agree with sheadlee. The stratos amps are unique in that they give you a lazer engraved back lit "odyssey" logo that really makes the amp look great. I have just purchased this amp and I am on my second week of breaking it in. The stratos is basically a German symphonic line amp that is made in the U.S. You cant go wrong with this amp. The sound quality and build quality are phenomenal! It looks like a $4,000 dollar amp and in most cases sounds like a $5000.00 dollar unit. Caution! If you call Klaus and ask to try it out, you will not send it back. Guaranteed! P.S also comes with a 20 year warranty if your looking for piece of mind.