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In the Forum: Analog Playback
In the Thread: I need a “second-type” phonostage.
Post Subject: german currentsPosted by hagtech on: 6/2/2006
"self-matching input impedance "
Aren't they trying to say the input is grounded? It sounds like they're using the current signal from cart, not voltage. Like the 47 Labs stuff. This concept has merit, but I never tried it. To me, the magnet/coil generator concept works best when creating a voltage. Same goes for speakers (in reverse). Although you can drive speakers with a current amplifier. They're just not designed for such. Crossovers should be done in series (like a Fried). Nelson Pass wrote an article in audioXpress discussing some experiments. In the end, he had to put a parallel resistance across the amplifier to make it sound right. Sort of right back to where we started (voltage source with some series resistance).
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