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
To dmk_calgary

Ah, tubes. An area as dangerous as cables. I see from reading some of the replies that at least person believes that I prefer new production over NOS. Not always the case. What I am stating is that there is almost a prejudice that new production can in no way compare to NOS. I have been most pleased with the Gold Lion re-production of the small signal tubes. And before people jump all over me I also know that the original Genelex company did not always make small signal tubes in some of the sizes currently offered. That said, where I am most satisfied with the Gold Lion re-issues is that they are quiet, and to my ears, give me at least 90% of what several NOS tubes do. For instance, the Gold Lion  re-issue 6922 tubes give me the same sonic qualities that I have heard with some older (70's) Amperex 6922 tubes. The Gold Lions are not inexpensive though one can shop and find decent prices. Many reputable sellers offer warranties on the tubes as well.  I have also had some good luck with the TungSol re-issues and though I hate to use the name TungSol as I know it is just a Russian tube with the TungSol name, I again find the tubes to be pleasing to listen to, quiet, and pretty darn reliable. I have dropped some serious money on NOS tubes only to hear tube rush, microphonics and other issues. Some reputable sellers like Brent Jesse and Vintage Tube Services do their very best to try and eliminate those issues, but the fact remains that many NOS tubes are from the 1940's. I have read numerous times about the Sylvania 6SN7WGT metal base tube as one of the best 6SN7 out there. I did find a pair from a man who I have dealt with in the past. He sells good tubes and he actually loaned me a pair before purchase. Thank God he did that for the tubes were horribly microphonic and frankly, un-listenable. I think how horrible it would have been to drop the $300 (cheap at the time) for the pair.
So, like so many things in audio, it is synergy, opinion, and what works for you. My main point again is this: if one does not have a perspective on tubes and tube performance, just don't jump on the NOS bandwagon because a tube is NOS. Try new production, see what you think, and then perhaps try a pair of NOS tubes. One just might be surprised...
As long as I am being long winded and opining away, I would like to add one more thing and it is this: where a lot of people recommend going with NOS tubes for their or others tubed gear, how people are actually running NOS power tubes? Who out there is using a gob of GE 6550 tubes, a gaggle of Gold Lion KT88 or a multitude of Mulland EL34s? If there are as many of those who as compared to those using the small NOS signal tubes I would be amazed. So for the sake of argument, those of us who are not made of money or have a time machine, we have had to make due with current production 6550, KT88, EL 34, 6L6 tubes and so on. Does anyone feel like they are suffering as a result? I am just saying that as a group if we are willing to use current production power tubes, where and when then does it matter where the NOS tubes come in and current production moves out? Small signal, rectifier, etc? I just know I cannot afford let alone find an octet of original Gold Lion tubes that my amps once used so it is necessary for me to use current production and I still enjoy what I am hearing.
End of the sermon...
OKay - I lied.  I am back. And this is not about tubes so relax:

gguy767, you said something interesting to me in one of your posts. You wrote this:
"I think I'm a tad more of a music lover than an audiophile."

Interesting as I said. What is your definition of an audiophile and what makes an audiophile less of a music lover? I love to drive. I have some nice cars that make driving much more fun. Does that make me less of a lover of driving because I have an object that allows me to accelerate more quickly, corner better, stop better etc? Does owning a piece of equipment that allows me to enjoy the music better move me out of the category of music lover and into some murky area of "audiophile"?
Curious I am....
gguy767- Everyone says that I’ll get addicted and want better this and that but I think I’m a tad more of a music lover than an audiophile
. Good. So you want to know the very best bang for the buck, after moving things around to get the best speaker placement possible, is a tube of Total Contact.This stuff will transform your system in a way you can hardly even imagine. All the other stuff you’re talking about will make a difference. For sure. But you could spend thousands and not get to where one $300 tube of TC will get you. No set of tubes ever made at any price will get you anywhere even close. Probably no speaker or amp for that matter.

Search around for mahgister and his thread on his system. Its a very budget level system and he’s outside the US so no Total Contact but the point is the same: its way better and more cost effective to tweak what you have than to buy more expensive components.
Other top contenders, all of which are much more cost effective than tubes or components: BDR Cones, Synergistic Research Orange Fuse, ECT, HFT and PHT.

I didn’t see anything in your comments about speaker cables, interconnects, or power cords. If you are still using the cheap freebie patch cords and rubber power cords they ship with components then those should be the first to go. After that, don’t even think about tubes or components until you’ve done the list above. Start with TC, you will see what I mean.
That's just my opinion, of course audiophiles love music, no doubt about that but they also love the tech, the speakers, the look, the hunt for quality audio... which do they love more though? The actual music that made the hair stand on the back of their neck the first time they heard it or the beauty of an amazing sounding system? I didn't say you can't be or have both, I'm just one notch over on the spectrum to music lover is all, I'm not going to buy the Bugatti. When that hair stood up on my neck it was on an inferior quality audio system to what we can get these days and I love that over just a quality sounding stereo any day. I think an audiophile and a music lover are like separate hobbiests in a way. An audiophile is on a constant mission for sound quality improvement and a music lover is on a constant mission for that new song that's going to move them. I also think the two meld together nicely. One is on a mission to hear that music with high fidelity and is constantly upgrading and tweaking to get that sought after high fidelity, the other can hear it on a crappy chinese 1997 boombox and never think twice about it and love it just the same. I like to drive too but I don't need a expensive sports car to have just as much fun. Some people want a Bugatti I'm good with a Corvette big difference there the Bugatti would smoke a Corvette and make it look stupid but I wouldn't be any less happy with my Corvette that's how i feel about this hobby. It doesn't mean i have any less respect for anyone! I myself am 40% audiophile and 60% music lover. I want my music to sound good but not Bugatti price good corvettes price good is good enough for me and I say this not being a rich man, but even if I was.. you wouldn't find me so into the hobby of High Fidelity that I drop 25,000 on a set of speakers it's just how i feel about it. I think what i have now sounds better than anything I've ever heard in my life tbh. That said it doesn't mean I won't change my opinion at some point but currently this is me. I mean people don't call them selves audiophiles for a reason and generally people aren't willing to spend 100$ for a radio let alone 25,000 on just a set of speakers. Most people don't even have the 100$ and probably don't even think twice about audio quality.