12AX7 / ECC83, Balanced Triodes

Smooth classic Mullard sound.

Made my pre-amp sound great.

i dropped this in my bugera v5 infinium. the stock one wasn't terrible, but i read some reviews on this tube and felt it would open my amp a little. i do feel it is breathing a little better and has a better bite. not really from the crunch standpoint. but time will tell.

This tube is amazing! Surpasses all other 12ax7 tubes on any preamp or tube mic! I’m using this tube in my presonus “studio channel” and it sounds amazing!

Yeah it's only been an hour of testing and listening to music but hey I wanna get these thoughts down quick!First off, there is heaps of gain. Listening to this tube with my Project Horizon headphone amp and HD600 headphones, compared to other tubes I've been using I can definitely hear some gain buzz when the signal is off. But that doesn't take away from the sound.Couple notes:-Balance across the tonal spectrum. Throughout the range of sound including midrange being present, just as much as the highs. I can hear anything in particular that sticks out, maybe a 100 hour burn in will speak otherwise.-Soundstage isn't narrow but it isn't wide either. The music sounds right in between the ears and not too forward either. Almost like the sound is being presented in a half circle if that makes sense!-Kind of reminds me of a solid state signature. I'm actually hoping that with more burn in the detail will kick back a bit and warmth and smoothness set in, but I can't complain.If I can remember to do it I'll swing by here with an update on how things end up going after some good burn in time.

After researching preamp tubes I bought this. Was a little disappointed, very bright and a little thin sounding. The sovtek LPS sounded much better and the tung sol is even better.

Mullard makes great replacement tubes for guitar amps

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