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  1. Aguirre

    HD650's or AKG K 701 for first open headphone?

    I bought a pair of 701 a couple months back. Really love the sound and have been listening to them every day. Plus they look great.
  2. Aguirre

    Cmoy to SOHA

    I am really enjoying my soha. I bought parts from jrossel off his geocities website. At the time he had a spreadsheet and let me pick and choose which components I wanted to buy. He is a nice guy to deal with. Oh and did I mention soha great?
  3. Aguirre

    EZDAC is officially working!!!

    How does the ezdac compare to an AlienDac if they are both being fed from a computer over usb?
  4. Aguirre

    resistor & cap pair matching

    That is an interesting read Tangent. My own DMM is a cheap velleman with what looks like 2000 counts of resolution. I gave up trying to match resistors because under most ranges it's totally not up to the task. But now I am wondering if I can use my limited understanding of Ohm's law to help my...
  5. Aguirre

    Help with DC offset on PIMETA

    I removed the auricaps for the input positions on the PIMETA amp (C1R/C1L) and then jumpered across their positions. I then moved them back as output caps on the AlienDAC. The DC voltage now remains locked at 5mV when I turn the pot. I think this is because the pot is a variable voltage...
  6. Aguirre

    Help with DC offset on PIMETA

    It really does sound a LOT better with the auricaps. To Alf's credit I think his webpage does mention you can use film caps or botique electrolytic. I went with the Elna Silmic II since you can get them from digikey, but they dont sound so great.
  7. Aguirre

    Help with DC offset on PIMETA

    Measured DC voltage between ground and either left/right at the headphone jack is 5-10 mV for any position of the volume control (max, min, half, etc.). It is only when I adjust the volume control and for about 20 seconds after that the DC voltage spikes and slowly comes back down. This is with...
  8. Aguirre

    Help with DC offset on PIMETA

    Hello I built an amp with an AlienDAC running to a PIMETA. The PIMETA is powered from an external dual voltage power supply. The AlienDAC is powered directly from USB. Originally I had electrolytic output caps in the AlienDAC and no input caps in the PIMETA. There was no problem with DC...
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