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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Misc.-Category Forums > DIY (Do-It-Yourself) Discussions

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Old 07-06-2008, 01:47 AM   #3431 (permalink)
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The radiators are the black external thing at the back, and the blue internal one with the fibreglass duct.

The shiny metal things in the foreground in the last pic are the air heatsinks that I was using on the CPU (Noctua NH-U12) and DFI 680i NB (it's the stock one).

Heh, you can see a bit of a black/red theme going on with my PC case too I guess
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Old 07-06-2008, 05:55 PM   #3432 (permalink)
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Default Beta22

Well I finished up my Beta22 a couple of days ago. It was definitely worth the effort (and money). I hit a couple of bumps in the road but made it through....









Right off AMB's parts list. Added an e12 and allowed for two inputs. Wire is from navships and canare starquad for the longer run (front to back).

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Old 07-06-2008, 06:12 PM   #3433 (permalink)
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Originally Posted by Ech0 View Post
Well I finished up my Beta22 a couple of days ago. It was definitely worth the effort (and money). I hit a couple of bumps in the road but made it through....



Right off AMB's parts list. Added an e12 and allowed for two inputs. Wire is from navships and canare starquad for the longer run (front to back).

Ech0
Well done Ech0 !
What is the headphone connector type you are using?
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Old 07-06-2008, 06:24 PM   #3434 (permalink)
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Thanks Ferrari, it's a Switchcraft Thick Panel jack. It's inserted in the middle of a rubber grommet. I put a larger washer behind the grommet to give it some extra strength.

BTW, I copied the light in the panel idea from you. Always enjoy looking at your builds. Oh, the feet come from you too!! You posted a link awhile back.

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Old 07-06-2008, 06:29 PM   #3435 (permalink)
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Originally Posted by hardnrg View Post
The radiators are the black external thing at the back, and the blue internal one with the fibreglass duct.

The shiny metal things in the foreground in the last pic are the air heatsinks that I was using on the CPU (Noctua NH-U12) and DFI 680i NB (it's the stock one).

Heh, you can see a bit of a black/red theme going on with my PC case too I guess
Nice Thermochill
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Old 07-07-2008, 03:41 AM   #3436 (permalink)
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Originally Posted by Ech0 View Post
Well I finished up my Beta22 a couple of days ago. It was definitely worth the effort (and money). I hit a couple of bumps in the road but made it through....
Nice matching set there, is that how the case come stock or did you add the front panel?

Looks like Ferrari's blue LED idea gets around (me too) :P
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Old 07-07-2008, 04:05 AM   #3437 (permalink)
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Thanks, it's a par-metal case. Front panel comes w/it.

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Old 07-07-2008, 09:43 AM   #3438 (permalink)
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Originally Posted by Ech0 View Post
Well I finished up my Beta22 a couple of days ago. It was definitely worth the effort (and money). I hit a couple of bumps in the road but made it through....

IMG]http://img360.imageshack.us/img360/3930/frontlx7.jpg[/IMG

IMG]http://img360.imageshack.us/img360/1892/backga7.jpg[/IMG

IMG]http://img360.imageshack.us/img360/5813/sidezy1.jpg[/IMG

IMG]http://img360.imageshack.us/img360/3179/front2ud8.jpg[/IMG

Right off AMB's parts list. Added an e12 and allowed for two inputs. Wire is from navships and canare starquad for the longer run (front to back).

Ech0
Great looking amp. I like the clean front and back panels!

Cudos to you!
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Old 07-08-2008, 04:51 PM   #3439 (permalink)
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Hey MASantos, thanks for the kind words.

I'm still toying with changing the switch on the Sigma22 to a vandal switch. The vandal switch may tie in better with the amp with everything being round rather than a toggle switch.

I built this amp with a gain of 5 and it still is more than enough to power both the K701's and HD650's that I use. It will drive either headphone to volumes that I will never listen to. This surprises me a bit as I thought I was choosing a fairly conservative gain.

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Old 07-08-2008, 05:18 PM   #3440 (permalink)
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Nice job! I would agree that the vandal switch would look better. Just be careful if you need circuitry to run a momentary switch like the Bulgins.
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