It's a 60 watt speaker so it should be OK with a 50 watt amp. A lot of people say the speaker(s) should handle double what the amp puts out. The Celestion rep said that while you should leave some room, that even a 50 watt speaker they build should handle a 50 watt amp unless you were diming it all the time. For most of us, that's never going to be an issue. A much bigger issue, IMHO, is getting a 2x or a 4x, and trying to get the speakers broken in when the amp never gets turned up past 2-3.