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Crack;Bottlehead OTL - Page 316

post #4726 of 5987

Some nice looking builds in here! Any suggestions for a 6 month old kit(+SB) that hasn't experienced anything other than stock tubes(6080 & 12AU7)? Paired with HD600 and Modi.

 

post #4727 of 5987
Get Tungsol/Chatham 5998

Sent from my LG-V500 using Tapatalk
post #4728 of 5987
Quote:
Originally Posted by olegausany View Post

Get Tungsol/Chatham 5998

Sent from my LG-V500 using Tapatalk

Yep.  that should be your first move.

post #4729 of 5987
post #4730 of 5987
Quote:
Originally Posted by ItsLarry View Post
 

Some nice looking builds in here! Any suggestions for a 6 month old kit(+SB) that hasn't experienced anything other than stock tubes(6080 & 12AU7)? Paired with HD600 and Modi.

 


Install a $30 stepped attenuator

 

Loquah's recent post

 

"Update Time!

 

I installed a new attenuator the other night in my Bottlehead S.E.X. and have now had a chance to listen to the setup for a little while. There's no doubt that it's a significant improvement. As others have reported, the key differences from the stock potentiometer are better transparency and detail. I feel like the textures of recordings and things like breathiness in vocals, etc. are now more accurately and clearly rendered through the S.E.X."

 

works well with the Crack also and have one fitted in mine

 

http://www.head-fi.org/t/683012/bottlehead-amplifier-discussion-comparison-thread-crack-sex-mainline/570


Edited by JamieMcC - 4/27/14 at 12:22am
post #4731 of 5987
An excellent, cheap 12AU7 is the RCA Clear Top.
post #4732 of 5987
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post #4733 of 5987
Quote:
Originally Posted by MoatsArt View Post

...

 

Morse code?

post #4734 of 5987
... --- ...

Mistake. Posted in wrong thread and deleted.

redface.gif

Red face has been my favourite emoticon today.
post #4735 of 5987
That 7802WB arrived yet Jamie? Looking forward to impressions.

Am planning to mod the Crack to take 12SN7GTs as input. I have too much time on my hands while I wait for the kit.
post #4736 of 5987
Quote:
Originally Posted by MoatsArt View Post

That 7802WB arrived yet Jamie? Looking forward to impressions.

Am planning to mod the Crack to take 12SN7GTs as input. I have too much time on my hands while I wait for the kit.


Hi Nathan mine arrived well packed and works perfectly sonically its very much the same as my 6080wb

post #4737 of 5987
The 6080WB produces a lower output impedance I believe due to the difference in mutual conductance from a 6080. It would be interesting to see how it goes with lower impedance phones, like the K702.

Do you have any cans like this hanging around with impedance in the 60-80 ohm range? It would be interesting to learn if you can hear a difference between the 6080 and 7802. The 5998 lies somewhere in between, I think, in terms of mutual conductance and output impedance.
post #4738 of 5987

The only low phones I have are the ATH W1000X which are 42ohm but they happen to be double boxed up for international shipping ;) and I don't fancy unwrapping them!

post #4739 of 5987
redface.gif
post #4740 of 5987

Interesting that no one is mentioning TS 7236 ,I was recently looking for worthy  5998 replacement (actually combination of both -power/driver tube) and I think this tube paired with Tungsram or Amperex E80CC (tried various 6SN7s and E80CC Philips,Siemens )   sounds very good 

 

mandatory pic 

 

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