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4/8 ohm speaker output switch etc
Is changing output impedance a big job on valve heads? My Hiwatt is 16/8 but I'd find 8/4 more useful with modern bass cabs.
I've got one of those series/parallel switch boxes to make 2 x 8ohm cabs 16ohm load but I've never used(trusted) it. Also all the 8x10 cabs are 4ohm in mono...
Yukirin-
It depends on whether the output transformer has the wiring for it - in my amp, there’s an unused 8 ohm output wire (see photo) that can be brought into use. I’m going to route the 4 ohm and the 8 ohm outputs to a switch so that the appropriate output can be selected. Whether there are other ways to do it, short of changing the output transformer, I don’t know.
rodan
Maybe, although I’m happy enough soldering to a PCB. I’m definitely going to do some of the mods that sort out the hum, extend valve life, 4/8 ohm speaker output switch etc. You can also put in a master volume pot, and a Princeton-style tone control.