Great preamp tube for the price. Mids are definitely emphasized, but not too much. Sounds great in my Gibson GA-18, better than other new production tubes I've tested.
I have a Laney GH50L and this tube was originally in the V2 position, IIRC. V1 was a TAD 7025/E83CC, which was ok, but not great breakup, kinda mushy on the bottom end, etc. Just not good for heavy distortion.
So today I tried this ECC83 in V1 (and the 7025 in V2) and it really opened everything up! HUGE difference! The distortion was clear, no bottom end mud, crisp highs and mids. Exactly the tone I was looking for!!
This tube, IMO is great as a V1 tube. Try it and see.
Very nice tube. I put these tubes into my ADA MP-2 and ADA MP-1 preams and the sound get better. Very good and warm clean and much better in overdrive sound. I can recommend these tubes for better clean sound and warmer overdrive. Radek Pittr, Czech Republic, www.jedubaby.cz.