[SonicTrance]

   
Luckily mine were NOS and absolutely pristine...inside and out. Am really looking forward to seeing how they sound...will update as soon as I can get those darned adapters made!!

Mine were also NOS but with dirty glass under the cover.

 

[Oskari]

  My Lorenz were really dirty under the cover though.

 
With what?

 

[SonicTrance]

With what?

I don't know. Must be something from the factory obviously. The glass looked " muddy" instead of clear if you know what I mean. I should have taken a pic of it. Had to use vinegar to get them clean, lol.

 

[Oskari]

Some sort of grease then?

 

[SonicTrance]

Some sort of grease then?

Yeah, mixed with dust. That's the best way I can describe it.

 

[SonicTrance]

I recently rolled these Mullard 6080's in my new mkvi+. And they were very noisy, but dead quiet in the mkivse which isn't even made to run those type of tubes. I don't get it

 
 
It's these tubes: http://www.ebay.com/itm/311154206725?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

 

[gibosi]

  I recently rolled these Mullard 6080's in my new mkvi+. And they were very noisy, but dead quiet in the mkivse which isn't even made to run those type of tubes. I don't get it

 
 
It's these tubes: http://www.ebay.com/itm/311154206725?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 

 
I would say the MK4 runs 6AS7-type tubes rather "gently". These tubes were designed to run at a significantly higher plate voltage than the MK4 can provide. And therefore, in your MK4, less than perfect tubes can often sound very good. On the other hand, your MK6, which is biasing them them properly, is running them "harder". And typically, tubes that are run hard tend to reveal their imperfections...
 
However, that said, the noise you are hearing could very well not be due to any imperfections. It is my experience that these tubes often quiet down after 50 or more hours. So I would suggest that you don't give up on using them in your MK6 quite yet. Give them some time.

 

[mordy]

Hi MisterX,
 
Could you comment on the difference in sound between the MKIVSE and the MKVI?
 
Also, how does the MKIV sound with the 6080 tubes?

 

[SonicTrance]

   
I would say the MK4 runs 6AS7-type tubes rather "gently". These tubes were designed to run at a significantly higher plate voltage than the MK4 can provide. And therefore, in your MK4, less than perfect tubes can often sound very good. On the other hand, your MK6, which is biasing them them properly, is running them "harder". And typically, tubes that are run hard tend to reveal their imperfections...
 
However, that said, the noise you are hearing could very well not be due to any imperfections. It is my experience that these tubes often quiet down after 50 or more hours. So I would suggest that you don't give up on using them in your MK6 quite yet. Give them some time.

That makes a lot of sense. Thanks gibosi =)

 

[SonicTrance]

  Hi MisterX,
 
Could you comment on the difference in sound between the MKIVSE and the MKVI?
 
Also, how does the MKIV sound with the 6080 tubes?

I'd say that they sound very similar when using the SE output on the vi+, if you can find a way to get rid of the noise from that output. But as soon as I had re-terminated my cans to balanced 4-pin XLR the difference was huge. Much bigger soundstage and tighter bass and detail. Everything is better really.
 
The mkivse sounds very good with the Mullard 6080's. A bit more tube sounding and warmer than the 6H5C's I got. Good match with the C3GS's.

 

[MIKELAP]

  I recently rolled these Mullard 6080's in my new mkvi+. And they were very noisy, but dead quiet in the mkivse which isn't even made to run those type of tubes. I don't get it

 
 
It's these tubes: http://www.ebay.com/itm/311154206725?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

Somebody on the Woo thread tried those from Langrex and his were noisy to

 

[SonicTrance]

  Somebody on the Woo thread tried those from Langrex and his were noisy to

Hm, interesting. It's to bad that they're noisy cause I like the sound signature. I guess I have to give them more time like gibosi advised. 

 

[MIKELAP]

 

  Somebody on the Woo thread tried those from Langrex and his were noisy to

Hm, interesting. It's to bad that they're noisy cause I like the sound signature. I guess I have to give them more time like gibosi advised. 

Guy im refering to is BADAS in Woo thread i know he has had them for 1 month or so ask him if he has many hours on them.he's on this page                                                                                                                     http://www.head-fi.org/t/428570/woo-audio-amp-owner-unite/33345

 

[SonicTrance]

  Guy im refering to is BADAS in Woo thread i know he has had them for 1 month or so ask him if he has many hours on them.he's on this page                                                                                                                     http://www.head-fi.org/t/428570/woo-audio-amp-owner-unite/33345

Thanks!
Though the ones he has does look different than mine. Mine doesn't have the Mullard "shield" branding. It looks like they're selling different tubes on ebay vs their website

 Or maybe it's just the branding on the tubes that's different. They're also £5 cheaper on their website, lol.

 

[gibosi]

  Thanks!
Though the ones he has does look different than mine. Mine doesn't have the Mullard "shield" branding. It looks like they're selling different tubes on ebay vs their website

 Or maybe it's just the branding on the tubes that's different. They're also £5 cheaper on their website, lol.

 
Mullard/Philips made these beginning in the 1950s and on into the 1970s, so there is some variation over time, and as one would expect, there are also sonic differences.