My Dream Microphone Costs $25,000 — So I Made My Own.

Roan Zen Martin October 25, 2025
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Roan Zen Martin

@roanmartin

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I try to make a U-47 style microphone. Turns out I know absolutely nothing about making microphones. Listen to my album please: https://open.spotify.com/artist/6dKA6U1Cf5Bc5GYLAXVbQO?si=xUNGZwd7SI28vfaMQobVeg And follow me on Instagram for updates on new videos, music, and live shows! @roanzenmartin Check out One Reason by Carmen Costello here: https://open.spotify.com/track/2zal9iOC8Zk0CkOjvNSBz5?si=0c6630b68e434383 Thank you to @JimLill for the inspiration, @MarkYoshimotoNemcoff for the capsule recommendation, and @FuzzAudio for sending over some tubes to try out! Business Contact: [email protected] 00:00 Intro 00:57 Background 03:22 Old XLR connector 05:33 New XLR connector 06:41 Capsule preparation 07:35 The scary part 08:30 Testing the mic 09:50 Zip ties? 10:24 Oh my god 11:07 Fixing the issues 11:29 Polar pattern sticker 12:04 Is it done yet? 12:31 The badge 12:45 What the hell is a backplate voltage 14:20 Electrolytic capacitor? I hardly know her! 16:26 Tube choice 17:00 IT'S DONE 18:27 Sound sample

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