I bought these valves to replace the very very worn out and rattling tubes I had in my Rivera Chubster 55 amplifier. Before changing the valves the amp already sounded good, it was just quite noisy both in terms of background noise and from the physical vibrations causing a distinctive rattling every time I hit a F note. After fitting the new valves my amp sounds so much better. It totally breathed new live in to my amp. The harmonic content of the notes just sound richer. To top it off these valves were a great price and came wrapped in so much bubble rap and in a super tough cardboard packing so survived the trip from the warehouse to my flat with ease. I'll be buying these again when they've worn out.
JJ makes great tubes at affordable prices. Ad to this the selection and matching made by the Tube Amp Doctor and the few extra euros you pay really seem worth it - at least to me! I use these tubes in an old vintage Traynor guitar amp head and it sounds great. Just enough clean head room when you need it but still nice and creamy harmonic power tube distortion when I increase the volume. With the power amp all flat out, these tubes deliver pure classic rock distortion with a nice balance in harmonics and without any annoying fizziness. Great value tubes if you want 70's type distortion!
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