Please help Lak with a tube problem:-

I own a pare of Cary 2A3 monoblocks that came with JAN 6Sl7WGT (Philips ECG 34167) tubes. I replaced those tubes with NOS Sylvania 6SL7WGT tubes.

My JAN 6SL17WGT tubes sounded good and I could achieve the volume of 85 dB on the -1 setting of my preamp. With the NOS Sylvania 6SL7WGT tubes I have to use the setting of +4 to achieve the volume of 85 dB and the music sounds as if a vail is over the speakers.

HELP! What’s happenings? I thought I purchased the correct replacement tubes.

My system can be viewed on Audiogon, user name Lak.
Thanks for any assistance...
why don't you call cary?
I thought I'd call Cary however I have to wait until Monday. In the past they have not been a great deal of help regarding other tubes. They have suggested to me, to stay with the tubes that the equipment comes with.

In the case of my 2A3 tubes, I have improved the sound greatly by using different 2A3 tubes.
kevin deal at upscale audio is a tube expert, and he carries cary - you could email him...
Good idea.

It turns out my problem is I need a 6SL7 and I received a 6SN7 instead!
yes, its a lot of people who don't pay attention to what kind of tubes their using. before you change, rolling your tubes you should check. the 6sl7 volt higher than 6sn7, that why most poweramp used 6sl7 and 6sn7 for preamp,if you can try to roll tube with 5691 tube it subtitle for 6sl7 also last longer and sound warm and hamonic anyway sound better for sure. good luck