6SN7 Tung Sol Reissue Mullard 12AX7 any comments?


Does anybody have any experience with re-issue Tung SOl 6SN7's??
How about re issued Mullards 12AX7's.
They're being copied to the smallest details (they say) or the opriginals in original Reflektor Plant in russia.
Just wantd to now If I should stop looking to spend small fortunes on NOS.
Are these guys a solution??
KT-88 GEC being copied also Golden Lions, any thoughts.
I headrd the guys at Sophia ELEctrric (famous for their 300B tube) are bringing form Shuguang a copy of teh GEC that kiks butt . .. .
I'm using their awesome KT-88-98 and like it very much so. . . the promise of something even better is very appealing to me, especially when looking at original GEC tubes beaten to a pulp by MacIntosh amplifiers for sale for many hundreds of buck sometimes even K$ . . .
Your thoughts are appreciated.
Wanted to give you a heads up on the new generation of chinese amplifiers tubed they are a fantastic value at their current prices, just make sure use them with a variac adn to 110 VOLts otherwise tube plate voltage is too high and destroys tubes in months.
my grid here is 119 to 124 volts and that is too much for these amps.

Thanks for the help;
God Bless!

Gonzalo
128x128gonzalo
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
i have the mullard 12ax7 reissues. they don't sound like mullards at all. edgy and lean is what i heard when i used them in a cd player. these tubes are not my cup of tea.
Has anyone compared the sound of the new reissues to original vintage tubes mentioned? Isn't that what we are all aftger? Who cares if it only looks like the original! I think Mcfarland hit the nail on the head, salesmanship and marketing.
I have tried the Mullard 12AX7 reissue tubes in a Conrad Johnson phono stage and they do not look or sound like the NOS Mullard 12AX7 tubes that I was using. The reissue tubes may sound a little better than the Sovtek or EH labeled tubes but they are not Mullards. I went back to the NOS Mullards.
It always amazes me when people comment on products they do not own or have not heard. I have the Mullard 12AX7 reissues and while do look like the Sovteks the sure don't sound like them. They have a much smoother more extended sound and are not strident like the Sovteks. I use them in a Cayin A70T and Cayin MT12A (an EL84 amp that I have not seen in the USA). The A70T came with EH 12AX&'s and MT12A with Cayin branded Shuguang 12ax7's. In both cases the Mullard re-issues were an improvement.
I also have a set of the Tung Sol 12AX7 re-issues and the pair I have are very low gain,the sound seems very recessed and they are a short plate design as compared to the long plate Mullards.
As to output tubes I have not had a chance to listen to the GEC Gold Lion re-issues but I do have two sets of the Tung Sol 6550 re-issues one in an Audio Research CA50 and a pair used in my Antique Soundlabs MG SI 15 DT single ended amp. In both cases (they replaced SED6550's in the AR and Valve Art KT88's in the ASL) they were a significant improvement. To my ear they are very similar to the original GE6550's as I still have one Quad I use a reference. I hope this gives you some help in making your choice.