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Jolida 502B correct tube allocation

Hello,

Greetings from Costa Rica.

I'm a really fan of hearing jazz and electronic music too (weird I know)

At this moment, I have a Jolida 502B with Paradigm Monitor 11 v6, Xindaq DAC and CD Player.

I'm trying to upgrade the Electro Harmonix original tubes and looking for this I asked at tubestore and they answered me:

"You require one 12AT7 and one 12AX7 per channel." (actually the 502B has a salad of 12AX7 brands)

So, I will need a matched pair of 12AX7 plus another mp of 12AT7, that's clear.

My question is: where is the correct location or side for to the AX7 and the AT7 ?

There are 4 sockets, guess left-right = two for channel, but I don't know where to put the AX and AT, outside or inside of each channel ?? Or there is another distribution possible ?

Thanks for your help.
edoll
edoll OP
12 posts
 
BTW

First Detredwings, I'm clear about this true that you said in another thread: "Tubes choices are a very personal thing. For someone to say what will be best for you is almost impossible."

And, a matched pair around $48 will be finally $110 in my door (taxes and shipping to Costa Rica)

So, I'cant at this moment go for very expensive tubes...
detredwings
162 posts
 
Edoll,

I'm not sure what tubes you are refering too? Anyway be careful getting on the NOS tube rolling wagon. Expensive and you may be dissapointed. You may be perfectly happy with some new tubes like JJ or EH and save a lot of money.

You may start a thread and ask for advice on new production tubes. Good luck!
wolf_garcia
6,695 posts
 
I bet there's a tiny old electronics shop someplace in Costa Rica with a treasure trove of NOS tubes...maybe that's wishful thinking and not the case, but hey...look around...
mechans
3,048 posts
 
If you don't like shiny or typical EH sound I suggest you go with all Mullard (NOS) for the small tubes or possibly the GL reissues (not cheap either). The output I am very enthusiastic about is the Gold Lion reissue KT-88s. They are well worth the extra money trust me on this one. The source I use is Jim McShane over on Audio Asylum.
edoll OP
12 posts
 
Thanks guys!!

@Detredwings...yes, I have noticed some post about the NOS stuff, I think that I will remain on new tubes only.

@Wolf: hope the Gods made you prohet! Believe me: there is nothing here around vacuum tubes...just expert technicians on transistor amplifiers and similars, and only 4-5 five stores with a few of Nakamichi's, Denon, Bose, and very rare to see but sometimes you can find some McIntosh.

Mechans, do you find many difference between the NOS - New Mullard's ?
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