One of my favorites. To my ears still better than a lot of the current offerings. Tremendous bass capabilities, and despite what some others may claim, IMHO an overall warm, rich sound. With that said, do be careful about what you put in front of them. They will not hide the faults of what precedes them. These are older, hot running amps, and they might need some maintenance, such as new caps and re-biasing, not an inexpensive proposition.