Hi
I am seeking advice regarding the setup of my first valve equipment. I bought a pair of 6g4g monoblocks from Vinylnvalves almost two years ago and embarrassing have only just gotten around to setting them up. There is some hum from the amps even after warm up and I understand that this could be due to the bias not being set correctly. I have read/watched various biasing guides online but they reference parts that are not present on my amps. I have an 1 external pot for adjustment but two output valves, does this alter the idling current to both or alter the balance between the two? Is a shunt probe (valve seat insert) necessary as there are no dedicated bias points? Sorry if this seems like elementary stuff, but I get the impression that I may break something/someone/me if I start poking around in an uninformed fashion.
Any help would be greatly appreciated
Steve