Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Crack;Bottlehead OTL
New Posts  All Forums:Forum Nav:

Crack;Bottlehead OTL - Page 327

post #4891 of 8126

Good to hear you guys have nailed down the issue, superb builder support.

 

As we haven't had one for a while and I need some practice.

 

I am sure watching the tubes glow makes it sound even better!

 


Edited by JamieMcC - 5/8/14 at 2:01pm
post #4892 of 8126

Thanks for the kind words. We know that most of our customers are DIY newbs and thus their worry factor is a little on the high side. And so we do our best to deal with all concerns.

 

After you blow up a few things DIY gets a lot easier.  

post #4893 of 8126
Nathan, looking forward eagerly to following your Crack odyssey (Crackyssey?)

Doc, that's so true. I started as a newb who could solder, but had no clue of what bits did what. With some magic smoke under my belt, as it were, I'm now modifying stuff and really starting to understand the basics of what does what. Couldn't have done this without the wonderful support of your products and manuals and the awesome communities here and on the Bottlehead forum.
post #4894 of 8126
Quote:
Originally Posted by Loquah View Post

Nathan, looking forward eagerly to following your Crack odyssey (Crackyssey?)

Doc, that's so true. I started as a newb who could solder, but had no clue of what bits did what. With some magic smoke under my belt, as it were, I'm now modifying stuff and really starting to understand the basics of what does what. Couldn't have done this without the wonderful support of your products and manuals and the awesome communities here and on the Bottlehead forum.


+1

post #4895 of 8126
Quote:
Originally Posted by Loquah View Post

Nathan, looking forward eagerly to following your Crack odyssey (Crackyssey?)

Doc, that's so true. I started as a newb who could solder, but had no clue of what bits did what. With some magic smoke under my belt, as it were, I'm now modifying stuff and really starting to understand the basics of what does what. Couldn't have done this without the wonderful support of your products and manuals and the awesome communities here and on the Bottlehead forum.

 

+2 I knew nothing about valve amps six months ago, thanks for the new hobby!

post #4896 of 8126

The only thing Ive learned on the site is that I don't know squat!

post #4897 of 8126
That's a great place to start! smily_headphones1.gif
post #4898 of 8126

Hello crackheads..For those using the 5998, what are your fav input tubes?


Edited by mullardpassion - 5/8/14 at 11:08pm
post #4899 of 8126
Pure Crack is up and running. Late night tonight, fellas.
post #4900 of 8126
Quote:
Originally Posted by mullardpassion View Post
 

Hello crackheads..For those using the 5998, what are your fav input tubes?

 

I've settled on the E80CC with my Speedballed Crack. It's a Brimar, though I don't know whether it's a rebrand or what have you.

 

With the stock Crack it was considerably bolder than my other options, including second favourite Mullard ECC82. Bass had more substance and meat to it, the soundstage opened up, speed, detail and separation were all better. Most of all, it just felt more visceral and ecstatic, very tubey but not muddy at all. Unfortunately, the stock Crack is not designed to run it so I rolled my ECC82 back in.

 

With the Speedball installed, I have realised that there's not as much difference between tubes but the E80CC is still the best for me. Fast but full, rich and panoramic. Apparently, with a semi-permanent resistor mod (will negatively affect the running of other tube pairings), you can get even more from the E80CC & 5998 combo. I'm just waiting for the resistors to arrive. No doubt in my mind.

 

N.B. Some bright sparks on the BH forum have come up with a switch-based mod to allow you to also revert to the previous resistances to run any variety of 12AU7 and 6080 etc without compromise. Personally, I've reached a sound I definitively and exclusively prefer so I'm going to push on down the semi-permanent road, in any case.


Edited by grrraymond - 5/9/14 at 1:04am
post #4901 of 8126

Thanks..The Mullard ecc82 and the RCA5814A have been my favourite tubes so far. I think the best way to mod the crack, is to upgrade each part at a time, and to know exactly how it alters the sound. The speedball is the single best upgrade to go for. I might try the e80cc afterwards

post #4902 of 8126
Quote:
Originally Posted by MoatsArt View Post

Pure Crack is up and running. Late night tonight, fellas.


wow.. that was a fast build.

post #4903 of 8126
The Pure Crack



No upgrades (except tubes - Running a Tung Sol 7236 & Tung Sol 12AU7 black glass black plate). Base coated with tung oil and finished with wax.

Great to be able to get out my T1s again.
Edited by MoatsArt - 5/9/14 at 5:17am
post #4904 of 8126
Quote:
Originally Posted by MoatsArt View Post

The Pure Crack



No upgrades (except tubes - Running a Tung Sol 7236 & Tung Sol 12AU7 black glass black plate). Base coated with tung oil and finished with wax.

Great to be able to get out my T1s again.

That was fast! Great looking build. T1s should sound excellent on your Pure Crack.

post #4905 of 8126

My fav tube combo so far with the Crack/Speedball is the Mullard CV491 / 12AU7 K61 with the a Tung Sol 5998,

I just tried a Holland Phillips Miniwatt ECC82 and that sounds nice but its bad tube :(  has a Shhhh crackle sound so its rubbish.

I also have some Telefunken E80cc tubes to try but I'm still waiting for the resistors to show up.

 

Changing my rca interconnect cables from a pair of "Cable Talks" copper  to a  pair of  silver RCA cables made a nice change.


Edited by lost&confused - 5/9/14 at 6:26am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Crack;Bottlehead OTL