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2359glenn | studio - Page 381

post #5701 of 10318
Thread Starter 
Quote:
Originally Posted by Clayton SF View Post
 
 

Very good. Give him my regards. I've never met him but have had many great conversations with him.

 

He wants to meet you.

post #5702 of 10318
Quote:
Originally Posted by 2359glenn View Post
 


Those are paper in oil caps  in a metal can that needed to be covered.

I only use paper in oil coupling caps don"t like the sound of plastic.

I modded MMs WA22 with V caps and  it sounded like crap to me.


How much run time did the V caps have when you listened Glenn?  I know it sounds stupid but the insane high numbers people quote for burn-in on some of these boutique caps seems to be actually true.  The Duelends in my amp are still changing, and compared to what I heard the very first day I got the amp they sound radically different now.  It's hard to believe it is even the same amp.  On day one the 45 amp did not sound as good as the OTL.  Now it sounds much better than the OTL.  I almost want to mail it back to you for a week so you can hear what the amp you built sounds like now. 


Edited by Xcalibur255 - 10/23/13 at 9:03am
post #5703 of 10318
Thread Starter 

Xcalibur255, when I had my DAC modified with Low ESR "Super Caps" I spent north of 500 hours before it got itself right. And this was with a fully played-in DAC beforehand.

post #5704 of 10318
Quote:
Originally Posted by Xcalibur255 View Post
 


How much run time did the V caps have when you listened Glenn?  I know it sounds stupid but the insane high numbers people quote for burn-in on some of these boutique caps seems to be actually true.  The Duelends in my amp are still changing, and compared to what I heard the very first day I got the amp they sound radically different now.  It's hard to believe it is even the same amp.  On day one the 45 amp did not sound as good as the OTL.  Now it sounds much better than the OTL.  I almost want to mail it back to you for a week so you can hear what the amp you built sounds like now. 


No burn in they were brand new maybe that is why they didn't sound good.

I don't know what you paid for the Duelends but $100.00 each for .22uf capacitors is crazy.

I could have sold MM a new amp for what the 4 capacitors cost.

post #5705 of 10318
Quote:
Originally Posted by jc9394 View Post
 

 

I thought MM love it after the mod.  What you don't like after the mod?


Actually MM wanted me to take them out and try to sell them and put something else in.

But we never got around to doing that

post #5706 of 10318

Indeed.  It's funny how much more obvious these things get with each upgrade.  The difference between my CD player and my PC for playback used to be pretty subtle.  I spun a disc quickly to listen on the 45 amp the other day then played the same track on J River on the PC.  Not subtle at all, the CD player sounded really different.  I was surprised at how obvious it was.  I wasn't listening to *hear* a difference either, the purpose was troubleshooting an issue my computer was having.

 

I'm wondering if my DAC is now the weak link in the system, aside from the source since I'm pretty sure it always will be.  But, it's time to stop making changes for a while and just enjoy the setup.

post #5707 of 10318
Quote:
Originally Posted by 2359glenn View Post
 


No burn in they were brand new maybe that is why they didn't sound good.

I don't know what you paid for the Duelends but $100.00 each for .22uf capacitors is crazy.

I could have sold MM a new amp for what the 4 capacitors cost.

PartsConnexion was having a cap sale.  I think it still ended up being 60-something each for them.  Russian K40Y probably sounds 90% as good for 10% of the price but I was still okay with the cost.  If ever there was a time to go all out on something I felt this was it.  Contentment is pretty priceless to an OCD guy like me.  :)

post #5708 of 10318

Have you tried the #46 tube yet ??

post #5709 of 10318
Quote:
Originally Posted by Xcalibur255 View Post
 


The same as yours.  :wink_face:

 

Just to make sure my comment was being interpreted right, I have no issue with volume the system will play crazy loud.  After a certain point it just starts to sound strained, mostly in the form of treble sibilance which is true of all systems.  This only happens at volumes I wouldn't normally listen at, and honestly most of it was probably coming from the coupling caps and the new sylvania tubes since the amp was sounding bright in general during that particular period of break-in.

 

 

Yes it's the CI, I forgot.

i was thinking of my Weiss for a minute that has variable output, sorry!

post #5710 of 10318
Quote:
Originally Posted by 2359glenn View Post
 

Have you tried the #46 tube yet ??


Not yet, decided to listen to all the 45s together so I could decide which I like.  I only have the 3 pairs so the tung sol was the last.  Then the 46 and after that I'll just leave whichever sounds best in the amp for a fair while. 

 

Do you think the 6BY5GA would sound any different from the 6BY5G Glenn?  Is the voltage drop the same?  The G style is surprisingly hard to find but the GA are still rather common.  I need to stock up and see if I can find a pair that doesn't make that whistling sound.

post #5711 of 10318
2 gec curved bases are on sale!
Tempting but already have 3 pairs and spent money on other tubes


http://www.ebay.com/itm/2x-Matched-GEC-A1834-6AS7G-6080-421A-Curved-Brown-Base-f-Darkvoice-OTLs-/331045949743?pt=Vintage_Electronics_R2&hash=item4d13e0512f
Edited by Dubstep Girl - 10/23/13 at 11:31am
post #5712 of 10318
Quote:
Originally Posted by Xcalibur255 View Post
 


Not yet, decided to listen to all the 45s together so I could decide which I like.  I only have the 3 pairs so the tung sol was the last.  Then the 46 and after that I'll just leave whichever sounds best in the amp for a fair while. 

 

Do you think the 6BY5GA would sound any different from the 6BY5G Glenn?  Is the voltage drop the same?  The G style is surprisingly hard to find but the GA are still rather common.  I need to stock up and see if I can find a pair that doesn't make that whistling sound.


Are you sure it is not the 45s making the sound?

I will look and see if I have any more 6BY5G sitting around if I do I will send them to you.

will look tonight.

post #5713 of 10318

It's hard to tell since they're so close together, but if it is the 45s then every pair has done it.  It sounds like the 17Khz whine that old tube tvs made, you can hear it anywhere in the room.  Just comes and goes at random.  I figured since the 6by5 was a tv damper tube it was the likely suspect.  I have a pair of 6by5ga I can try but I haven't done it yet, I was planning to do the swap when I tried the 46 tubes that way they could both burn in at the same time.

post #5714 of 10318
DG, is there a difference in the internals of the straight and curved base GEC 6AS7G?
post #5715 of 10318

The straight bases are rarer and supposedly sound better.

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