TAD 12AX7A-C/ECC83 Premium Select

Used them in V2 of my Randall as suggested, and it worked pretty well. It didn't change the overall sound that much compared to the stock Electro-Harmonix, but it gave it a bit more warmth.

Would definitely recommend it !

This tube replaced a beaten up Electro Harmonix 12AX7 in the Phase Inverter position of an Epiphone Blues Custom.

I needed a durable tube to be able to withstand the high voltage of the PI and so far it does fine. I only have it for about 2 weeks so I will edit my review in the future.

It is also important to mention that Thomann delivered it to me securely, carefully packaged and it traveled a bit, so dont be afraid the transportation if you want to buy your tubes online

I like this tube. I got this for a Marshall AVT50X because I wanted to change the sound a little. Now the amp it's quieter and has more gain. Definitely more clarity in sound, more balls and more mids.

It sounds clear and nice, but when pushed in overdrive abit edgy. I've had enough of them in different amps and all of them were quiet and had no issues at all. Excellent choice as phase inverter and also at second and third stage, depending on your amp.

Good tubes with a nice warm tone at a reasonable price. Put these into my Marshall dsl40c and the difference between these and the stock tubes are remarkable. The clarity of notes has definitely improved with the addition of these tubes.

I retubed an Orange Or15 head with TADs.I put the RT001 in the phase inverter position.No problem what so ever.Putting TAD tubes in my amp made the amp better overall IMHO.Less noise,more definition,more tightness,more punch.I don't hear any cons.The amp had JJ's before the TADs.

Quality made tube used for most Marshalls. This tubes can last for years...

Used it in a custom built hybrid microphone preamp to drive up the signal. It adds color and when driven hard it saturates beautifully with a really pleasing vintage tone.

I use this tubes in my ENGL Powerball on V6 and V7 and it sounds great! High quality, more headroom, more natural and pure tone, no noise... Really good tubes and price is good too! TAD tubes are great! Recommend!

I use :
V5- TAD RT080; V6- TAD RT001; V7- TAD RT001; V8- TAD RT008

nice warm sound, excellent price!