I have the new Mullard 12ax7s in my VTL tl5.5 and I have been enjoying them very much. They replaced some 70's vintage RCA 12AX7A's that I never really warmed up to. The new Mullards sound great. They have a deep bass nice midrange and an extended top end that is not harsh at all. They have more rythmic drive than the RCAs did, more lively if you will. It definetly improved the PRaT of my system. I prefer them to the 80's vintage Mullard CV4004s i have in my phono section.
As for New Sensor just rebranding the same tubes I can clearly see, and hear, the differnces of 4 different 12AX7s that I have that were all made by New Sensor. I have the reissue Tung Sol , reissue Mullard, Sovtek 12ax7LPS and Sovtek 12ax7wa. They all sound diffent and have diffent internal construction and with the exception of the 12ax7wa they all sound good.
Cheers,
Jim
As for New Sensor just rebranding the same tubes I can clearly see, and hear, the differnces of 4 different 12AX7s that I have that were all made by New Sensor. I have the reissue Tung Sol , reissue Mullard, Sovtek 12ax7LPS and Sovtek 12ax7wa. They all sound diffent and have diffent internal construction and with the exception of the 12ax7wa they all sound good.
Cheers,
Jim