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HiFan replied to the thread The Opamp thread.He is right technically but that's not all that's going on. You have to pay attention to technical backgrounds that his ideas were built... -
HiFan replied to the thread The Opamp thread.Get an opa1612 and be done.
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HiFan replied to the thread The Opamp thread.Check this out: https://tangentsoft.net/audio/opamp-bias.html and this: https://www.audioasylum.com/audio/tweaks/messages/31186.html
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Can anyone give me a comparison of HE-560 and T60RP. For reference I have experience with the HE-560 but no experience with the T60RP...
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I agree. Some Chinese hifi makers are proving that you can killer headphones for cheap! I got the planar T1s off ebay barely used and...
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HiFan replied to the thread The Opamp thread.It’s mainly distortion profile. Sparkos are good to my ears. I have a pair of singles. However i think money should first go to better...
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HiFan replied to the thread The Opamp thread.That’s the current source. The main opamp doesn’t output enough current as HP driver. Opa1656 and muses02 can only output about +-50ma...
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Moral of the story: it’s so basic just let the circuit show you, what it wants and it needs! Make the necessary changes and listen for...
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HiFan replied to the thread The Opamp thread.I hope this makes your life easier. https://www.electrical4u.com/source-of-electrical-energy/
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HiFan replied to the thread The Opamp thread.The easy way will be using a resistor, as current flows through, voltage drops accordingly. But it’s possible to use chips like opa1612...
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HiFan replied to the thread The Opamp thread.I am aware that many think that way, especially that's on akm4499's datasheet (the only one from akm that has a current output). But it...
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HiFan replied to the thread The Opamp thread.I think it all depends on the designer. ESS chips output can be set to current mode and voltage mode, while AKM are voltage mode only...
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HiFan replied to the thread The Opamp thread.I won't touch that. Transistors need to be manually matched for current. And, if you swapped to jfet, there is a high chance you also...
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HiFan replied to the thread The Opamp thread.Modding exsiting design is difficult. True, hard on me to get my UD503 right. When you have multiple caps in parallel, it is best to...
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HiFan replied to the thread The Opamp thread.Side note, even with LDOs that don't like low ESR caps, you can still use them after a small resistor (e.g. .0.33R) in series with LDO...
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