ODAC + PGA2320 + The Wire = The ultimate budget headphone system

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Rullknufs, using a simple potentiometer will reduce the cost by around 95$ cutting down the total gross price (with shipping included) to around 250$ or 200€.

You can put connectors as you wish. Do it for your own needs.

For the power supply I can suggest a simple LM317 and LM337 combo. Nothing fancy here and it isn't necessary as this LME49990 and LME49600 have outstanding PSRR and CMRR. You can build the scheme given in datasheet or google.

Very interesting!

I'll do some more research between this and the ODAC+O2 combo. Found some really cheap O-stuff from Switzerland at Home and I'm really tempted to buy from there... And that would be simpler than building this.
 
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