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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Apples and Oranges posted by Ralph on November 1, 2002 at 10:41:10:
FWIW, the 600 ohm balanced termination thing is not used much anymore. It was more a standard when practically everything in the studio was transformer coupled back in the olden days.You'll see most capacitor mics come out with an output impedance of around 200 ohms or so, wanting to drive somewhere around 2Kohms in a mic preamp. All the rage right now is providing variable input impedance selection on the micpre to purposefully alter the loading and alter the sound.
Most transistor line level gear in studio racks these days will be electronically balanced. Some tube gear will offer transformer coupled outputs and others will be hybrid going into a 990 amplifier or such and most of this stuff will not be dying to see 600 ohms planted on their outputs. You'll see most line level input impedances sitting around 10Kohms or so. And there's still plenty of unbalanced +4 gear around that will do fine into 10K as well.
Common Instrument inputs for guitars on Direct boxes offer input impedances upwards of 100Kohms, 1Meg ohms and even 10Megohms. I don't consider this to be "fairly low".... Did you mean to say "very high?" Because yes, at these impedances, UNbalanced, the guitar cable has a very large impact on the sound, which can be chosen for specific effect.
Cheers, EveAnna Manley, Manley Labs
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Follow Ups
- Impedances - Vanimal Manley 18:56:18 11/03/02 (1)
- Re: Impedances - Ralph 12:29:43 11/04/02 (0)
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