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best 12ax7 tube with jj el34l for Jadis Orchestra

I finally am setting up my new sound room after three years. I built an 18x18 sound room and I am getting the best holographic sound stage that I have ever had. Not only do the speakers disappear, but the entire room also disappears as well. And the texture of the sound is spectacular.
I am using JJ EL34L and Telefunken 12ax7. I want to try to find options for the 12ax7 tubes. I want to brighten up the tones a little bit, but not lose the texture or holographic sound stage.
I have no experience with 7025 or 5751 tubes, but have read positive posts recommending them, although not regarding using them with the Jadis.
Any advice is most welcome. Thanks again.
mattzack2
bbroussard
162 posts
 
I also have used 5751s in place of 12AX7s for years. The triple mica black plates from the 50s are the best. Don't buy the gray plates or the later two mica versions.

My personal preference is RCA, then Sylvania, then GE. All are excellent IMHO. GE is best bang-for-the buck.

Full disclosure: I currently have Sylvanias for sale on eBay and have a pair of GEs that I am getting ready to post.
elevick
2,439 posts
 
I think that mullards have a little more sparkle than telefunkens but may not be as robust. Amperex seem to be a little softer. GE's can really brighten things up. 5751's were always to "forward" for me.
swampwalker's avatar
swampwalker
5,132 posts
 
You might want to PM member Trelja. IIRC, he's a big fan of Jadis integrateds and more than likely has some well-informed recommendations.
mechans
2,999 posts
 
I am surprised that Trelja hasn't offered his thoughts on this as he has or had a Jadis Orchestra Deluxe for many years. I know he also had or has a DA-60. I think we both liked the Sylvania triple mica Black plate 5751 at one point but he may have changed his preference so I cannot speak for him. I'll see if I can get his choice for the 12AX7 in the Jadis integrateds.
mattzack2's avatar
mattzack2 OP
175 posts
 
Trelja's response in a pm....

Yes, the 5751 sound the best of any variant, with the Sylvania triple mica black plate at the top of the heap. I wholeheartedly recommend them. Some will mention they have lower gain than a 12AX7, and if memory serves me correctly, I think that I did notice that in the JOR, which may keep you from using them in that application.

Believe it or not, the triple mica Shuguang 12AX7B, that regularly sell for $10 - $20 is one of the best sounding variants you can buy, and supplant a lot of the old standards, including Mullard. In my estimation, they're truly a no-brainer, so if you don't want to pay 5751 prices or don't want to absorb any loss of gain, I suggest you give them a try. I think you'll be quite happy with them.
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