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Old 30th March 2014, 06:10 PM   #2051
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Some very nice looking builds from you guys Really need to finish off my BAL-BAL build, but am waiting on 'The Wire' DAC... hint, hint, nudge, nudge

Gain... as has been pointed out, even 1Vrms will drive a lot a headphones to very loud levels. Base gain on the SE-SE is 1.1, it's output should drive a set of HD600 very well
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Old 31st March 2014, 04:49 PM   #2052
Fsatsil is offline Fsatsil  United States
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Talema 62052 trans.

Would this be a suitable transformer if I'm planning to use 12v rails for my SE-SE build?
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Old 1st April 2014, 12:30 PM   #2053
opc is offline opc  Canada
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Talema 62052 trans.

Would this be a suitable transformer if I'm planning to use 12v rails for my SE-SE build?
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Old 1st April 2014, 12:57 PM   #2054
Fsatsil is offline Fsatsil  United States
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Hopefully that one works. If not it's digikey.com part#1295-1064
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Old 1st April 2014, 02:46 PM   #2055
Fsatsil is offline Fsatsil  United States
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I think I found the info I was looking for and it looks like that trasformer will be fine. If I want to run 12v rails I would just change r30,55 to 134K and leave r29,52 at 1.24M? Sorry for all the dumb questions I just want make sure I get my parts order correct. Nothing I hate more then being in the middle of a project and I realize I'm missing a single resistor and then I have to spend $5 shipping for a 10cent part
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Old 1st April 2014, 05:32 PM   #2056
opc is offline opc  Canada
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Originally Posted by Fsatsil View Post
I think I found the info I was looking for and it looks like that trasformer will be fine. If I want to run 12v rails I would just change r30,55 to 134K and leave r29,52 at 1.24M? Sorry for all the dumb questions I just want make sure I get my parts order correct. Nothing I hate more then being in the middle of a project and I realize I'm missing a single resistor and then I have to spend $5 shipping for a 10cent part
For -12V, the datasheet suggests 1.5M ohms and 162k, but what you have listed (from the BOM I assume) will work as well.

Also, the transformer you have listed should be perfect for 12V rails and powering an SE-SE.

Best of luck with the build!

Regards,
Owen
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Old 2nd April 2014, 06:24 PM   #2057
Fsatsil is offline Fsatsil  United States
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For -12V, the datasheet suggests 1.5M ohms and 162k, but what you have listed (from the BOM I assume) will work as well.

Also, the transformer you have listed should be perfect for 12V rails and powering an SE-SE.

Best of luck with the build!

Regards,
Owen
Thanks for your help. I did notice that the data sheet recommended different resistor values then the BOM which is why I figured it was best to ask. I think I'm going to stick with what's on the BOM just to keep things as simple as possible. I'm really looking forward to this build it will be interesting to see how it compares to my O2!
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Old 12th April 2014, 10:34 AM   #2058
TNT is offline TNT  Sweden
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I removed the big caps on output side of the PSU. I prefer it this way. For me this is a lot better withe the BAL-BAL. Bass absolutely still there just more precise and defined without any boom. There was something bothering me with the sound but now its relay clean and uncolored.

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Old 12th April 2014, 05:45 PM   #2059
Thunau is offline Thunau  United States
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how much more expensive would a run of boards with SM parts already populated be?
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Old 12th April 2014, 10:00 PM   #2060
stachel is offline stachel  Germany
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The PCBs (BAL-BAL) can still be ordered?

Regards Martin
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