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B22 Price and other questions

post #1 of 19
10/1/10 at 4:18am
Thread Starter 

Hello,

 

So I'm having a difficulty in determining the real cost of a proper 3 channel B22. Or is there a real point in going 4 channels from the start?

At the moment my price ceiling in parts is around 1-1.5K USD and I was planning to get a Wooaudio 6SE but since I use amps alot and may forget them on from time to time I think using an expensive valve amp as a main amp would prove expensive if you burn through Princesses like matches.

In conclusion I have decided that B22 would be a proper box for me and would cover many of future needs for headphone amplification. 

So if I you could let me know how much you planned to spend on your B22 designs and how much you actually ended up spending because I bet these numbers can differ quite abit also lets assume that the case is simple but functional no need to count in gem encrusted marble coffins :P

 

Thank you for your time...

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post #2 of 19
10/1/10 at 5:08am

mine is probably ~$800. 3 channel

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post #3 of 19
10/1/10 at 6:14am
Thread Starter 

How hard/complicated it was for you to finish?

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post #4 of 19
10/1/10 at 6:51am

It dosnt matter how hard it was for him. It matters how hard it will be for you. I guess you can never predict this with absolute certainty, but a good estimate can be made based on your previous experience compared to the information on AMB's sites in addition to old threads. 

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post #5 of 19
10/1/10 at 7:04am

dual monoblock build (separate ps for each channel) could be cheaper, give better perfromance than "3-channel" - use separate R,L headphone driver gnds ("balanced headphone cable") and the system should deliver the best the B22 boards can

 

I really don't understand how headfi fashion has lead to rating "3-channel" ahead of dual mono builds? - or is it just no one ever brings up dual mono?

 

and you're in a excellent position to eventually go 4-channel fully balanced at a later date if you can't resist upgraditis


Edited by jcx - 10/1/10 at 7:07am
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post #6 of 19
10/1/10 at 8:01am

I think the reason behind recommending the 3-ch build over a full dual mono build is the fact that you don't have to re-terminate all your phones with a 3ch build.

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post #7 of 19
10/1/10 at 8:09am



 

Quote:
Originally Posted by jcx View Post

dual monoblock build (separate ps for each channel) could be cheaper, give better perfromance than "3-channel" - use separate R,L headphone driver gnds ("balanced headphone cable") and the system should deliver the best the B22 boards can

 

I really don't understand how headfi fashion has lead to rating "3-channel" ahead of dual mono builds? - or is it just no one ever brings up dual mono?

 

and you're in a excellent position to eventually go 4-channel fully balanced at a later date if you can't resist upgraditis

I don't expect a one on one tutorial here, but I see you posting everywhere about the differences between 3-channel and dual/individual transducer ground back to the PS. Perhaps you could take just a moment and explain just a bit more about why individual transducer grounds back to the PS ground has an advantage over a single/shared ground referenced to the rails.

 

Not to take the thread too far off course, but this one could benefit everyone here, including the OP.

 


Edited by digger945 - 10/1/10 at 8:11am
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post #8 of 19
10/1/10 at 8:46am
Quote:
Originally Posted by Nebby View Post

I think the reason behind recommending the 3-ch build over a full dual mono build is the fact that you don't have to re-terminate all your phones with a 3ch build.



Dual-mono, to him, is a 2-channel B22 + 2 S22, not balanced, I think.

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post #9 of 19
10/1/10 at 9:14am
Quote:
Originally Posted by jcx View Post

dual monoblock build (separate ps for each channel) could be cheaper, give better perfromance than "3-channel" - use separate R,L headphone driver gnds ("balanced headphone cable") and the system should deliver the best the B22 boards can

 

I really don't understand how headfi fashion has lead to rating "3-channel" ahead of dual mono builds? - or is it just no one ever brings up dual mono?

 

and you're in a excellent position to eventually go 4-channel fully balanced at a later date if you can't resist upgraditis

 

Quote:
Originally Posted by Lil' Knight View Post

Dual-mono, to him, is a 2-channel B22 + 2 S22, not balanced, I think.


Dual-mono to him is a 2ch B22 + 2 S22, with a "balanced headphone cable". 

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post #10 of 19
10/1/10 at 10:58am
Thread Starter 

First of all thank you all for your replies....

 

So it seems that ~1000 USD is a reasonable budget for this project. 

Also it seems that the standard 3ch build makes sense. 

 

As for my experience, I am comfortable with soldering iron and I have most of the tools needed alltough I have never done any work with mofsets etc...(except fixing my motherboard once :P)

Dealing with these boards would be my first, if possible I would like to find some help to get it finished fast as I am mainly interested in getting it up and running.

If im doing it alone it would probably mean that I would follow steps but wouldnt all of them...


Edited by Arlekiin - 10/1/10 at 11:07am
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post #11 of 19
10/1/10 at 12:21pm
Quote:

Originally Posted by Arlekiin View Post

to get it finished fast

 

There are very few people who can get a beta22 finished fast and have it work properly the first time.

 

 

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post #12 of 19
10/1/10 at 12:47pm
Thread Starter 

Hmm thats a not good...dont want to engage in hours of debugging....or days or even weeks...

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post #13 of 19
10/1/10 at 1:29pm
Quote:
Originally Posted by Arlekiin View Post

How hard/complicated it was for you to finish?



the soldering was pretty simple, no surface mount (took maybe 8hrs).  wiring took a bit of time(probably 4hrs) but i was lucky enough to have my beta22 start working right away.  I still havent had the chance to drill holes in the cases i bought so everything is still lying around haha. 


Edited by bridge8989 - 10/1/10 at 1:32pm
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post #14 of 19
10/1/10 at 1:30pm

That's why you take your time researching and reading about it, then take your time building carefully by checking and rechecking everything is done right. That way you don't have to worry about it blowing up on you.
 

Quote:
Originally Posted by Arlekiin View Post

Hmm thats a not good...dont want to engage in hours of debugging....or days or even weeks...

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post #15 of 19
10/1/10 at 2:28pm

another 1st project b22er?  glhf:)   it is definitely a challenging build but very rewarding.  go back a couple of pages on the DIY section and there is a ton of information for the B22 (just about everything you wanted to know).

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