lkos98's latest activity
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Llkos98 replied to the thread My DIY electrostatic headphones.Yep, that's correct, but the biases are positive to one membrane and negative to the other. Could be made with 0 and +HV, but then the...
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Llkos98 replied to the thread My DIY electrostatic headphones.In this thread :). Amplifier is single ended driving one stator. Please note sensitivity is lower than with the standard design, so you...
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Llkos98 replied to the thread My DIY electrostatic headphones.My design is a bit different - 2 membranes/1 stator, so I can't tell what is with normal 2 stators/1 membrane designs. My free resonance...
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Llkos98 replied to the thread My DIY electrostatic headphones.My amp is DIY, but is different type (single ended), so I can't help you with that. It was discussed several times, if you are into tube...
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Llkos98 replied to the thread My DIY electrostatic headphones.Hi, nice stretching jig. Why 4 diaphragms? And what is the deviation of those around 100 Hz? Asking, because with a similar method I got...
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Llkos98 replied to the thread My DIY electrostatic headphones.I support everything Chensettawong said above. Any closed back even simple damping foam affects the sound badly. Once covered with hands...
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Llkos98 replied to the thread My DIY electrostatic headphones.I guess you can stretch it the same way as the membrane with bicycle tube and then solder to a FR4 ring. If you use a double sided...
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LI think the headphones are completed now. :) I would like to propose an open source project for this pair of headphones. I will...
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LIt's been a very long time since I made a new design of the headphones. With the COVID-19 lock down about to be imposed here in...
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Llkos98 replied to the thread My DIY electrostatic headphones.One measurement is not enough - very true, but I made several. There was practically no difference, may be 1-2 dB in some places. I also...
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Llkos98 replied to the thread My DIY electrostatic headphones.Made some measurements with REW software, which confirmed my suspicions that the microphone doesn't have flat response. Compared are my...
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Llkos98 replied to the thread My DIY electrostatic headphones.I made some FR at last. Circle has about 10 dB (voltage on the mic) difference from 20-1000Hz, but it drops quickly down from 50-300 and...
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Llkos98 replied to the thread My DIY electrostatic headphones.Well I forgot to mention also that the area is higher than the ovals, so it becomes complicated. Otherwise I agree, it would be nice to...
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Llkos98 replied to the thread My DIY electrostatic headphones.Thanks for the calculations! I was thinking of it on another way - F=Q1.Q2.k/d^2. Which means with k = 4 times higher, F would be 4...
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Llkos98 replied to the thread My DIY electrostatic headphones.Finally assembled the new design. )( shaped stator, single sided, copper inside, 88mm active area, 50%, 1.2 mm holes. 0.65mm spacers...
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