Black socket.

The new 6550 from JJ is just superb. We listened to them in our in-house hi-fi and were pleased to find they had solid low-end without any muddiness. If you need to re-tube your SVT, these are 6550 are perfect.

The JJ 6550 tube can be used in any 6550 tube amp. The large plates allow for more efficient cooling and headroom. Whether your application is a hifi amp, guitar, or bass amp, the JJ 6550 tube will be up to the job.

Our benchmark was to A/B the JJ 6550 against some of our NOS GE, RCA, Sylvania and Coke bottle Amperex 6550's. Most of the time JJ Electronic tubes will hold their own with NOS equivalents or even surpass them but in the case of the JJ 6550 these are hands down the best 6550 we have ever heard. They are very warm with a great clean tone and the breakup raw, crunchy and gritty. If you want an Angus - AC/DC type tone then these tubes really deliver! they are simply a lot of fun to play.

The JJ 6550 will not make as much power as the JJ KT88 and the KT88 is thicker sounding, in fact some players feel it's too thick, so if you want a fatter sounding tube than a 6L6 that breaks up earlier than a KT88 then the JJ 6550 may be just right.

We now stock the new super-high quality JJ audio tubes. These tubes have consistently outperformed the competition in tone and sonic performance. Quality is the best we have seen from this factory.

Also available on demand 8, 12 and 16 selected tubes. Contact us.