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Crack;Bottlehead OTL - Page 355

post #5311 of 5998
Quote:
Originally Posted by Loquah View Post
 

 

A nice potentiometer or attenuator makes a big difference. Other than that, it'd be better caps and connectors (RCAs and HP jack)

I was looking at some of those attenuator so many options with defferent price range.Thanks!

post #5312 of 5998
Quote:
Originally Posted by i luvmusic 2 View Post
 

I was looking at some of those attenuator so many options with defferent price range.Thanks!

 

The Dale stepped attenuators are good value for money - I've used one in my S.E.X. and it sounds great!

post #5313 of 5998
Quote:
Originally Posted by Loquah View Post
 

 

The Dale stepped attenuators are good value for money - I've used one in my S.E.X. and it sounds great!

Can you please provide a link too many ebay seller to choose from i'd rather get them where you got yours.Thank You!

post #5314 of 5998
Quote:
Originally Posted by bigfatpaulie View Post

Yes.
+1.
post #5315 of 5998

http://www.ebay.com/itm/GEC-6AS7G-A1834-ECC230-pair-double-triode-thick-getter-audio-tubes-tested-/301214265739?pt=UK_Sound_Vision_Valves_Vacuum_Tubes&hash=item4621c4f18b

 

A pair of the legendary GEC 6AS7G tubes is on sale for a very reasonable price. Not sure how they are cheap like that but I think this is a good chance for anyone who wanted to have a chance try these wonderful tubes.

post #5316 of 5998
Quote:
Originally Posted by i luvmusic 2 View Post
 

Can you please provide a link too many ebay seller to choose from i'd rather get them where you got yours.Thank You!

 

Pretty sure this is the one:

 

http://www.ebay.com.au/itm/Assembled-Dale-23-Step-Attenuator-Volume-Control-100k-/270311271326?pt=US_Amplifier_Parts_Components&hash=item3eefceab9e

post #5317 of 5998
Quote:
Originally Posted by Doc B. View Post

Yeah I would agree that upgrading the attenuator would probably be the most rewarding upgrade after the Speedball. In order to address that we are working on the idea of using a Submissive passive attenuator ahead of the Crack and replacing the stock pot in the Crack with an adjustable crossfeed circuit that can be defeated for those who don't want it in the signal path. We found that designing our own attenuator gave us the best results vs. using other available high end attenuators, and the best sounding stepped attenuators tend to be bigger than the Crack chassis can accomodate. So the Submissive in its own chassis that matches the Crack chassis may have some appeal to those who have the space for a second chassis in their setup.

We will be running some tests on a crossfeed circuit in the next few weeks.

Oh, and thanks for the order!
How much modification to the Crack will have to be done to defeat its volume control? And could the same thing be done with Smash preamp instead of Submissive?
post #5318 of 5998
Quote:
Originally Posted by Aeolus Kratos View Post
 

http://www.ebay.com/itm/GEC-6AS7G-A1834-ECC230-pair-double-triode-thick-getter-audio-tubes-tested-/301214265739?pt=UK_Sound_Vision_Valves_Vacuum_Tubes&hash=item4621c4f18b

 

A pair of the legendary GEC 6AS7G tubes is on sale for a very reasonable price. Not sure how they are cheap like that but I think this is a good chance for anyone who wanted to have a chance try these wonderful tubes.

 

Thanks for mentioning them and bringing them to everybody's attention I was bidding on them by the way :frown:

post #5319 of 5998
Quote:
Originally Posted by JamieMcC View Post
 

 

Fitting a choke and replacing the last electrolytic capacitor with a film capacitor makes a nice improvement to bass extension. :wink_face:

I must thank you and Head fi'er Moatsart, you for the inspiration and him for selling the parts to me. Now I can't wait for the choke and the capacitors to show up.

post #5320 of 5998
Quote:
Originally Posted by JamieMcC View Post
 

 

Thanks for mentioning them and bringing them to everybody's attention I was bidding on them by the way :frown:


Haha, Jamie, you really can't stop collecting the GECs, right? :p

 

Good luck with the bid!

post #5321 of 5998

Selling one of my WE421A's if anyone's interested.

 

http://www.head-fi.org/t/723867/western-electric-421a

post #5322 of 5998

RE impedance mismatch btwn AKG Q701 and Crack -- theoretically, yes, but in practice, maybe not. The Crack does a very nice job driving my AKG 702 65th Anniversary, a close cousin of Q701. For me, an unexpectedly musical combination. So, I wouldn't rule out the Q701.

 

Quote:

Originally Posted by bigfatpaulie View Post
 

 

Yes.

 

 

Quote:
Originally Posted by irishsammy View Post
 


I don't have the Speedball so I can't answer that question but...isn't the Q701 going to be a big impedance mismatch?

post #5323 of 5998
Quote:
Originally Posted by .Sup View Post


How much modification to the Crack will have to be done to defeat its volume control?

 

The easy was is connect the input and output tabs on the pot. The harder way is taking out the pot entirely. The easiest way is just leaving the pot on max :cool:

post #5324 of 5998

 

I've got one of these in a drawer somewhere - but I'll be damned if I can figure out how to connect it (and it came with no documentation). I'm sure there is something on the intertubes, just haven't had the time to track it down yet. 

post #5325 of 5998
Quote:
Originally Posted by .Sup View Post

How much modification to the Crack will have to be done to defeat its volume control? And could the same thing be done with Smash preamp instead of Submissive?

Technically, sure you could do that. Not sure if it would sound better, as my philosophy has always been to use as few gain stages as possible. I admit to being surprised by the recent raves about putting a Quickie ahead of a Crack. I guess I need to play with that myself. We're certainly happy to sell them to anyone who finds that to be a sound that they prefer.
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