Our softest 6550 is easier to push into distortion than the “R” version or the original. Has a nice character that breaks up slightly earlier, which some players prefer in a Marshall®. A 6550 standard, this tube will produce a stock signature distortion at lower levels than the “R” version.
One of the highest-output 8-pin pentodes available. Originally manufactured in the United States by G.E.®, it delivers 35 to 50 watts per tube and was original equipment in Ampeg SVT and Marshall® amps during the ’70s and early ’80s. A big, clean, tight tube with amazing headroom and performance and great power and dynamics. A similar tubes is the KT88 (used by Sunn® and others). The highest-output power tube in this family.