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Crack;Bottlehead OTL - Page 279

post #4171 of 5984
Quote:
Originally Posted by Zashoomin View Post
 

Just to answer your question it is hammered paint so it naturally does that so it is very much on purpose.  

Yeah. It looks great. Consider this idea stolen. :beerchug:

post #4172 of 5984

So many cool ideas. Though all I can imagine myself doing is just painting it all Orange, and hating myself for it.

post #4173 of 5984
Quote:
Originally Posted by JacobLee89 View Post
 

So many cool ideas. Though all I can imagine myself doing is just painting it all Orange, and hating myself for it.

 

LOL. That could be a first though!

post #4174 of 5984
Many years ago a guy brought some amps (wish I could remember which - maybe oldskool SEX amps) to the Craftsman room at VSAC. He had done the chassis panels in bright yellow and the transformers in blue and IIRC red bases. By the description you are probably thinking "blimey!", but they looked really cool.
post #4175 of 5984

I had a old boss who used to paint lots of things in the Green Bay Packers colour scheme even his 80ft yacht! Cool idea and much easier to do with your amplifier.   

post #4176 of 5984
Quote:
Originally Posted by JamieMcC View Post
 

I had a old boss who used to paint lots of things in the Green Bay Packers colour scheme even his 80ft yacht! Cool idea and much easier to do with your amplifier.   

Being a Bears fan, I just barfed in my mouth a little. ;)

post #4177 of 5984
Quote:
Originally Posted by roguegeek View Post
 

Being a Bears fan, I just barfed in my mouth a little. ;)


lol, here ya go

 

Will remove later being off topic.  

 


Edited by JamieMcC - 3/10/14 at 2:40am
post #4178 of 5984

post #4179 of 5984
Quote:
Originally Posted by Doc B. View Post
 

I would suggest that "someone else may know why it won't work" and "don't turn it up too loud" are not particularly lucid technical arguments. Yes, the Crack can put out a reasonably high level into a high impedance load. So can a lot of preamps. I have confidence that you can use some judgement with respect to levels. The comment about impedance makes no sense. The low output impedance of the Crack - relative to its use at line level - is a plus. The Crack was actually used as the starting point for a series of experiments in transformerless low impedance tube preamps that led to the development of our 300B preamp. But go with what you feel is the best answer for you.

Hey Doc,

 

So I just noticed my speakers have a built in feature to change the input sensitivity: http://www.jblpro.com/www/products/recording-broadcast/3-series/lsr305#Specs

 

Selectable Input Sensitivity - The -10 dB/+4 dB sensitivity switch ensures compatibility with a broad range of signal sources, allowing you to connect the 3 Series to high output professional gear without any danger of input overload.

 

Was this the general concern about using a headphone amp for active speakers in the first place? Would this be useful along with the Crack? 

post #4180 of 5984

Yes, using the +4 setting to reduce the speaker amp input sensitivity will give you more range of adjustment from the Crack volume knob and a little more insurance against running the speaker amps into clipping. If you have level controls at the input of the amp just set them low enough that you can't drive the amps into hard clipping no matter how high you turn the crack volume knob.

post #4181 of 5984
Quote:
Originally Posted by swmtnbiker View Post
 

I bought a pre-built Crack + Speedball from a fellow Head-fier a few weeks ago and couldn't be happier with the amp. Not only does it sound absolutely *phenomenal* with my HD 650, the build is a thing of beauty. It's a very, very cleanly done job with braided wiring pre-cut to the proper length and practically flawless soldering. The Crack's wood housing however was received in its raw state, so this past week I decided to complete it. Ordered a Bottlehead badge from Doc to top it all off and settled on a distressed satin black finish with a few "antique " dings and dents here and there. Thought I'd post a few pics. Here ya go...

 

 

 

 

 

 

 

What are those rings around the tubes? I find them aesthetically pleasing. 

 

 

Quote:
Originally Posted by Doc B. View Post
 

Yes, using the +4 setting to reduce the speaker amp input sensitivity will give you more range of adjustment from the Crack volume knob and a little more insurance against running the speaker amps into clipping. If you have level controls at the input of the amp just set them low enough that you can't drive the amps into hard clipping no matter how high you turn the crack volume knob.

 

 

So -10db makes it more sensitive and +4db makes it less sensitive to volume changes? I thought it was the other way around


Edited by cheneric - 3/10/14 at 2:40pm
post #4182 of 5984

Tube dampers.  See, e.g., http://herbiesaudiolab.net/tube.htm

post #4183 of 5984
Quote:
Originally Posted by skeptic View Post
 

Tube dampers.  See, e.g., http://herbiesaudiolab.net/tube.htm

Thanks! Didn't expect them to cost that much though..

post #4184 of 5984
Quote:
Originally Posted by cheneric View Post
 

Thanks! Didn't expect them to cost that much though..

 

Dude, welcome to Head-fi.

post #4185 of 5984
Quote:
Originally Posted by cheneric View Post
 

Thanks! Didn't expect them to cost that much though..

 

Wait until you see the price of 3rd party cables. I'd rather go through 10 different makes of these tube dampeners than spend money on brand slapped wire.

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