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bobkatz replied to the thread The Stax Thread III.Direct coupled versus transformer coupled: the sonics. I am sad to report that my Estat amp build using a Pascal 80 watt amp and a... -
bobkatz replied to the thread The Stax Thread III.Dear Aokman: You're truly giving to the community! Many thanks. It's encouraging to learn that the XP power has output protection modes...
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bobkatz replied to the thread The Stax Thread III.I agree that UHV has no experience dealing with English-speaking clients. But I've been down that road before and at least they give an...
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bobkatz replied to the thread The Stax Thread III.I've seen the video and thank WCGR for the leads! I bought the 600 volt regulated module that Kevin found. The overvoltage circuit that...
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bobkatz replied to the thread The Stax Thread III.Thanks, Kevin. It protects the phones, that's the cool thing. If you come up with something more complicated with, perhaps a warning...
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bobkatz replied to the thread The Stax Thread III.I'm a big fan of using equalization to finalize or polish even an already-excellent headphone. I use the RME ADI-2 FS to accomplish...
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bobkatz replied to the thread The Stax Thread III.Now for the sonics! With the 5k load, the sound is much less "transformery" and more transparent. It's a win win for me, the transformer...
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bobkatz replied to the thread The Stax Thread III.Bump. If anyone has a 600 V overvoltage protection circuit for bias I would love to see it.
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bobkatz replied to the thread The Stax Thread III.Progress report on terminating the 15 watt transformer. I got some 5k 100 watt resistors from Digikey. These are designed to go on...
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For everyone who asking about my pro bias design, here it is finally, sorry it took so long but I wanted to test the design for any...
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bobkatz replied to the thread The Stax Thread III.Wow! Keep on keeping on, Kevin.
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The only E-stat that has monster bass slam is the HE1. I think the CRBN offers the best bass slam in the consumer market.
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bobkatz replied to the thread The Stax Thread III.Good point about the lack of overvoltage protection in these modules. What would be a good overvoltage protection circuit for 580 V DC...
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bobkatz replied to the thread The Stax Thread III.More discoveries: Linearity of frequency response of my transformer-based amp, which uses a 15 watt toroidal transformer. I have...
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1) the bias supply on all my desktop headphone amplifiers is a voltage doubler from the + regulated supply which makes 700v-800v. don't...
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