

Voltage capacitors retain their charge which can be very dangerous! So why is Tube Amp Bias important? Even if the amp is switched off or has been off for a few days. There’s a lot of charge stored in a tube amp and just touching the wrong part of the amp CAN KILL YOU ?.

This should only be done by a trained amp tech. Please note: We do NOT recommend that you attempt to bias your own amp. Typical power amp valves are E元4, EL84, 6V6 and 6L6GC valves. It’s also worth noting that when talking about tube amp bias, only the power amp valves are in question. But, it’s worth having a basic understanding so that the next time you pop into the store and your sales assistant explains that the Mesa Boogie Mark V is a fixed bias amp and the Fender Hot Rod Deluxe isn’t, you won’t be completely in the dark. This is because adjusting the bias on a tube amp can be very dangerous if not done by a professional. The guitar community seems to be shrouded in the mystery that is tube amp bias and in a way, it’s probably for the best.
