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bubbaboucan · 03-03-2009, 06:38 PM

The sole reason for the 6550's for the USA amps was that the available el34's were too fragile , ergo the 6550's...way more headroom, but they have sort of a fender bassman big round bottom to them that I enjoy al lot...experiment, and keep us posted!

03-03-2009, 06:38 PM	#4 (permalink)
bubbaboucan Junior Member Join Date: Mar 2009 Location: Orlando Posts: 22	Re: EL34 vs 6550's The sole reason for the 6550's for the USA amps was that the available el34's were too fragile , ergo the 6550's...way more headroom, but they have sort of a fender bassman big round bottom to them that I enjoy al lot...experiment, and keep us posted!