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My homemade headphone amp with my Sennheiser HD-555 headphones (soon to be replaced)

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sauercar's picture
Homebrew Headphone Amp
sauercar  |  Apr 21, 2006
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John_Atkinson's picture
Submitted by John_Atkinson (not verified) on April 21, 2006 - 8:28am

What op-amps are you using?

Carl S's picture
Submitted by Carl S (not verified) on April 23, 2006 - 10:37am

This amplifier has two op amps per channel, an input buffer opa627 then AC coupled to another opa627. I think the opa627 is a bit of an overkill, especially because they're outrageously expensive, I used them because I had a few sitting around. The amp is a little sloppy in construction and I

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