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Old 13th June 2012, 08:57 PM   #2531
Turbon is offline Turbon  Sweden
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Quote:
Originally Posted by swalter View Post
No need to beg ok, but seriously, have you tried a different USB cable, I had two faulty ones already... another thing to test would be if the hiss disappears with the 3.5mm connector, if both fails I send you a new one, but need the little hisser in return

Stefan
I don't get a sound with the 3.5mm soldered in place... Stefan, I'll send this one back to you - please send a replacement. There is nothing obviously wrong with it that hits the eye. It was probably manufactured on a Monday...

Brgds
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Old 13th June 2012, 11:41 PM   #2532
agdr is offline agdr  United States
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Quote:
Originally Posted by ethanolson View Post
K550
0.5V source (portable device) = 0.8x gain
2.1V source (redbook + 5% room) = 0.3x gain
.
Interesting! That fits in with something I'm doing. I'm essentially modding an O2 to be just a current buffer for the AKG K550s. I don't want to pollute Rocket Scientist's thread here with mods, so I've posted the reply in the mod thread here: O2 amp CRC, diode, cap, and heatsink mods

Last edited by agdr; 13th June 2012 at 11:56 PM.
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Old 14th June 2012, 02:45 AM   #2533
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Hi Turbon,

Check to see the jumpers on the reverse side of the board are made. They are only need to be shorted when using the 3.5mm
George
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Old 14th June 2012, 05:03 AM   #2534
Turbon is offline Turbon  Sweden
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Quote:
Originally Posted by GeorgeBoudreau View Post
Hi Turbon,

Check to see the jumpers on the reverse side of the board are made. They are only need to be shorted when using the 3.5mm
George
yes, I will... Thanks George.
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Old 14th June 2012, 02:43 PM   #2535
dixter is offline dixter  United States
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Finished putting together two O2/ODAC setups yesterday.... I'm very pleased with the setup.
seems the ODAC adds quite abit to the O2... more body and more output...
I instlled Foobar2000 with the WASAPI component to bypass the windows stackup... all sounds fantastic...

also, thanks to who it was to suggest using the lan line wires for wiring the ODAC... worked great....
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Old 14th June 2012, 03:58 PM   #2536
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Hi, i found in my house an AC adaptor will it be suitable for O2 ?? Parametrs are: "15VAC~1100mA 16,5VA".
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Old 14th June 2012, 06:56 PM   #2537
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I'm about to begin assembling my O2. Are the only components that are susceptible to ESD the opamps and mosfets?
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Old 15th June 2012, 03:08 AM   #2538
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Originally Posted by burgerking View Post
Hi, i found in my house an AC adaptor will it be suitable for O2 ?? Parametrs are: "15VAC~1100mA 16,5VA".
If it fits when you plug it in, it'll work just fine. Those parameters are right in spec. It's got more amperage than you need, but it's really the voltage that matters most.
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Old 15th June 2012, 05:24 AM   #2539
Turbon is offline Turbon  Sweden
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Same hiss trough the 3,5mm with another O2. I have a third O2 and my old Pioneer that I will test with tonight.
More about this later.
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Old 15th June 2012, 01:37 PM   #2540
jtktam is offline jtktam  Canada
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Turbon..

can you post some pictures?

-joe
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