Feliks Audio Elise Tube Rolling Guide 6SN7/6AS7G/6080/5998 | Page 3 | Headphone Reviews and Discussion - Head-Fi.org

Shaffer · May 18, 2015 at 2:59 PM

What do we think of Shuguang tubes? I decided to find out for myself and ordered a set of metal base 6SN7s and a pair of 6AS7Gs - $20 shipped for each pair.

On first listen, the 6SN7s sounded lean and mean. Talk about sibilance! OMG. One could slice bread with the sound. ~100 hours of burn in, and the highs mellowed considerably, the mids became sweeter and slightly more transparent, and the bass stayed just as lean. I'm going to give them another 100 hours in hopes of the tubes becoming more transparent and the bass being more fleshed out. There's definitely some promise here.

On first listen, the 6AS7Gs sounded just like the driver tubes - lean and mean. 50 hours of burnin did nothing. Gave them another 24 hours; nothing changed. These tubes sound like crap. I guess I'll keep them for a spare pair. Not even worth the $20, as for the same money one can have a decent pair of 6080s.

Renderman · May 18, 2015 at 3:39 PM

Thank you Shaffer, another very insightful post! I've seen a lot of different Shuguang Tubes, can you specify a little more or better yet can you share some pictures?

You would be more then welcome to try my GEC 6AS7Gs, the distance is the only real problem there I think

Shaffer · May 19, 2015 at 1:15 PM

renderman said:
Thank you Shaffer, another very insightful post! I've seen a lot of different Shuguang Tubes, can you specify a little more or better yet can you share some pictures?

You would be more then welcome to try my GEC 6AS7Gs, the distance is the only real problem there I think

I'll try to post some pics later today. Just be warned, I'm a terrible photographer.

Thank you for the kind sentiment. It's really very nice of you.

Oskari · May 19, 2015 at 1:16 PM

renderman said:
a pair of Heinz & Kaufmann branded Brimar 6AS7G's

I wonder what that is. Any photos?

Renderman · May 19, 2015 at 1:20 PM

shaffer said:
I'll try to post some pics later today. Just be warned, I'm a terrible photographer.

Thank you for the kind sentiment. It's really very nice of you.

You're very welcome Shaffer! If you ever find yourself in Holland, you are welcome to stop by and have a listen!

oskari said:
I wonder what that is. Any photos?

Sure, I posted them right here for you:

Oskari · May 19, 2015 at 1:37 PM

renderman said:
Sure, I posted them right here for you:

Thanks. I hope this doesn't come as a shock but those are Russian tubes. I don't think Brimar made them.

Renderman · May 19, 2015 at 1:58 PM

Oskari, you are probably right, good catch!

It does not shock me at all as they were basically thrown in with the deal and i'm still curious what they sound like. At the very least it will make an interesting addition to the thread.

Oskari · May 19, 2015 at 2:29 PM

Good for you. You'll be enamoured of the GECs anyway.

Shaffer · May 20, 2015 at 1:27 PM

Pics of the Chinese tubes I wrote about the other day. The drivers need more burnin, but I've pretty much given up hope for the 6AS7Gs.

Shaffer · May 20, 2015 at 2:23 PM

shaffer said:
I haven't listened to it enough to form a firm opinion. Initial impressions after, maybe, 20 hours of listening paint the tube as very smooth on top, yet extended, grainless, detailed mids, and relatively weak bass. Less weight than a 7N7, but without its definition and articulation. I need more time....

The bass is not so weak. It's actually pretty weighty with a good sense heft and slam. Best I can gather, the Elise took a little time to burnin, itself. Of course, I cannot tell exactly which sonic factors in the Elise changed and by how much, as I'm rolling different tubes some of which need burnin, too. If the Sylvanias are an indicator, the amp took a little time to come into its own and grew bigger cojones in the process.

Lorspeaker · May 21, 2015 at 1:47 AM

shaffer said:
Pics of the Chinese tubes I wrote about the other day. The drivers need more burnin, but I've pretty much given up hope for the 6AS7Gs.

Took out my chinese shuguang ~~6N13PJ~~ sorry 6N5PJ ..to play on my (pseudoElise) ..
the highs are slightly rolled off, but when paired with bright cans like my DT770,
it is a great match actually.

Shaffer · May 21, 2015 at 1:58 AM

lorspeaker said:
Took out my chinese shuguang 6N13PJ to play on my (pseudoElise) ..
the highs are slightly rolled off, but when paired with bright cans like my DT770,
it is a great match actually.

That's all you found wrong with them? How much burnin have yours had? Maybe I should give mine more time....

Lorspeaker · May 21, 2015 at 2:02 AM

it came with the 2ndhand DV336se, looks used..
i find my RCA Westinghams WingC all clearer than this china tube..
there isnt any crackling sound,
i kept it as a "soft" option in my arsenal ...a kind of china Mullard...LOL

hey...mine is a 6nFIVEpj.....

Shaffer · May 21, 2015 at 2:13 AM

lorspeaker said:
it came with the 2ndhand DV336se, looks used..
i find my RCA Westinghams WingC all clearer than this china tube..
there isnt any crackling sound,
i kept it as a "soft" option in my arsenal ...a kind of china Mullard...LOL

hey...mine is a 6n[COLOR=B22222]FIVE[/COLOR]pj.....

I can tell you one thing, mine sound anything but soft. Hard, lean, and brittle, sure.

Lorspeaker · May 21, 2015 at 2:23 AM

shaffer said:
I can tell you one thing, mine sound anything but soft. Hard, lean, and brittle, sure.

Electrically is the china 6n13pj similar to the russian 6n13H?
....the russian tube is AIRy..spacious...maybe abit brittle when new..kinda, my memory is vague.

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