I now own the 120s and am happy to report that the sound is excellent. I agree with the above that it is open, fast and still has that sweet Cary sound. Biasing is easy with the meters on the front. If you get one, I would highly recommend getting the Gold Lion KT88 tubes to replace the EH tubes that come with it. I liked this amp with the EH tubes but with the Gold Lion...WOW!! I run it in triod mode most of the time. I think the triod mode using the balanced inputs sounds best. The amp is currently running an easy load (Coincident Total Eclipse II's) but I have tried it with other speakers and it has the power to deliver. To sum it up, I am very happy with this purchase! - Kevin