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Tubes

I have recently come upon a tube amp a yaqin mc 13-s. I have been reading up a bit on tubes and different things to get better sound. I have asked some questions about speakers on here and received great feedback and its all very much appreciated, you guys who gave me your best input thank you. 

I paired my yaqin with a pro-ject tube box s2. Prior to purchasing the pro-ject preamp I came across a shiit lyr 2 and used it for a short period, unfortunately I'm not into headphones and it didn't pair well in my system the volume just want there because it's not really a preamp it's a headphone amp. Long story short it had ecc88 orange globe amperex tubes and that thing sounded smooooootthhh. 

So I have a few questions?
1. Should I change all the tubes in my main amp to matching tubes? It uses qty 4 (6ca7's or el34b's), qty 2 (12ax7's) and qty 2 (12au7's) for example if I were to use tungsol 12au7's should I use tungsol for the 12ax7's and 6ca7's or could I use gold lions for the 6ca7's? Does it really matter?

2. How big of a difference does it really make changing preamp tubes? like I said earlier the schiit really sounded great and I could only attribute it to those tubes but correct me if I'm wrong? I didn't have any other tubes to try.

Thoughts and opinions are all welcome and appreciated. Once again thank you all for the advice.
gguy767

Showing 1 response by audioman58

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audioman58
3,832 posts
 
Nos tubes matched from long standing a Vintage tube services,land Brent Jesse recordings especially for the smaller tubes ,the nos vintage tubes were built 
night and day better  with far more rigorous inspections. For the larger tubes
upscale audio buys the higher selected bunch then cryo treats them ,which for sure makes a improvement in several ways , NASA started this , now all racing teams, gunsmiths anything precision for it brings all its molecules much tighter 
and they permanently stay thst way they sound better and lsdt linger solder joints 
it helps balance the most ,these tubes are then mstched and runin for 3 days  before you buy them ,for $10 more per tube we’ll worth it , to replace the el34 
the Gold lion kt77 is a noticable upgrade myself and 3 friends have been very happy with this choice ,and the small tubes with nos tubes you can Taylor the sound , Brent Jesse recordings gives a rundown of each brands sonic character 

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