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  1. JohnRG

    Advice on a measurement microphone?

    Panasonic Mic Capsules from Digikey are relatively flat. Most people find they are within about 2dB. This should allow you to find nasties. A single op amp is sufficient to amplify your signal, and the circuit for that is on the net in many locations Link Removed is one source
  2. JohnRG

    Best speaker materials

    virgin poster here (on this forum) I have built a more than a few speakers, and after all is said and done, paper is hard to beat. The fancy materials can have very pronounced breakup modes, requiring higher order crossovers. If you want to experiment without a huge cash outlay, build the...
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