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xrk971 Desktop Class A (DCA) Headphone Amp
xrk971 Desktop Class A (DCA) Headphone Amp
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Old 25th January 2019, 09:38 PM   #221
dbaldock9 is offline dbaldock9  United States
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One other question about the DCA - It's something that you may have mentioned, and I just missed it - What input voltage swing does it take to drive the maximum output voltage swing (when set up with a 24Vdc linear supply as the input to the regulator section)? Thanks!
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Old 26th January 2019, 08:20 PM   #222
xrk971 is offline xrk971  United States
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xrk971 Desktop Class A (DCA) Headphone Amp
Gain is about 12dB (4x) IIRC, max possible output is 20v-4v or 16Vpp. But that is badly distorted - I would stay below 12Vpp. So 3Vpp would be max needed on input.
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Old 16th February 2019, 07:02 AM   #223
Keetesyflush is offline Keetesyflush  United States
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Hey XRK - just wanted to say thanks for the awesome project. I just finished the build and can't wait to start cap rolling. I put my last two matched 2sk170's in and it sounds glorious.
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Old 16th February 2019, 09:26 AM   #224
xrk971 is offline xrk971  United States
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xrk971 Desktop Class A (DCA) Headphone Amp
Nice work!
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