[ben_r_]

   
Yes I have a slight hum at about 75% volume but I am not sure if its the speedball or not. I do know that without the speedball my Crack was silent right up to 100%.
I only noticed the hum after soldering in a couple of 270K resistors inline with the RCA inputs as per a suggested mod in the Crack FAQ section. So I thought it was that, I plan to take them out soon when I fit a pot upgrade so will check when removed if the hum is still present.

Sounds good. That would be helpful to know as well.
 
Anyone else get a chance to test this out? Perhaps in particular with a set of HD-650's as the load? Turn your Crack w/ Speedball up to around 75% max volume and then all the way to 100% and let us know if you hear a hum or noise in your headphones with NO source (NO RCAs) connected.

 

[MattTCG]

Just finished the entire thread. 

 Now working on joing the club...

 

[brunk]

  Just finished the entire thread. 

 Now working on joing the club...

Cheers man. 

 

[bdr529]

Joined the club last week

 

[JamieMcC]

Joined the club last week

Nice work and a super pick of the tubes glowing.
 
Happy New Year all

 

[gikigill]

  Just finished the entire thread. 

 Now working on joing the club...

 
I,ve heard Loquah,s Crack and you wont regret joining us. I would suggest the Crack amd them the SEX/Mainline.
 
Currently listening to a SEX and its fabulous.

 

[bdr529]

Nice work and a super pick of the tubes glowing.

Happy New Year all

Thanks, Happy New Years

 

[MattTCG]

 I've found lot's of information on the output tube and have purchased a 5998. But what is the recommendation for the other tube? Is the stock okay?
 
Suggestions are welcome...

 

[Aeolus Kratos]

Crack + T1 addiction...

 

 

[brunk]

   I've found lot's of information on the output tube and have purchased a 5998. But what is the recommendation for the other tube? Is the stock okay?
 
Suggestions are welcome...

Get a 12BH7, so long as you're getting Speedball. It's super quiet and they are actually still reasonably priced

 

[brunk]

  Crack + T1 addiction...

 
 

Spoiler: Warning: Spoiler!

 

Looks like you're starting him off right! 

 

[RAZRr1275]

How do the HD650 and the Crack compare to the HD800 and the Crack? I like to have a darker headphone and a brighter headphone around and I was wondering if they'd be good foils to each other or if I'd think that one of them absolutely destroys the other. 

 

[reked]

Hey guys.
 
I currently have a HD650 and in the market looking for an amp for it. Just a question, how difficult would the crack be to assemble with absolutely no soldering experience whatsoever? 

 

[FlySweep]

Joined the club last week

 
Great pic.. I dig the dark base.. and the glow of the 5998 is so damn sexy.
 

   I've found lot's of information on the output tube and have purchased a 5998. But what is the recommendation for the other tube? Is the stock okay?
 
Suggestions are welcome...

  Get a 12BH7, so long as you're getting Speedball. It's super quiet and they are actually still reasonably priced

 
What Brunk said.. 12BH7's are renowned for having no microphonics... a great choice to have (at least one) if you've got the speedball installed.
 
I've made recco's on the 650 thread as far as input tubes go.. if you're going to be using the 650 w/ the Crack (and a 5998 for the output tube), I think an RCA "black plate" 12AU7 (or the "clear top") is a must hear combo.. stunning sound.  The Mazda CIFTE 12AU7 was bad ass with the 650, too.. great for electronica/hip hop/rock.

 

[JamieMcC]

  Hey guys.
 
I currently have a HD650 and in the market looking for an amp for it. Just a question, how difficult would the crack be to assemble with absolutely no soldering experience whatsoever?

 
I completed mine last month and had never soldered or used a multimeter before the instructions are excellent and easy to follow with  lots of pictures for each step
 
Watch Tyll Hertsens InnerFidelity Crack build video for tips on how to do the connections and soldering.