I bought this to replace my Blackstar HT-1R Metal's power section,
it originally had an EHX ECC82EH but I noticed that turning the volume from 9 to 10 had a huge sound difference, at 10 there was a ton of extra saturation, with spongy low and fizzy top end which was extremely annoying coming out of my beloved creamback neo.
After replacing it with this one, the sound got natural , the signal a bit louder, fuller and without the annoying almost white-noisy top end.
Now that little marvel of an amp sounds fantastic in any of my cabs!
I'm looking forward to experimenting with more tubes, but having this tube as a good, solid reference.