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Posted by Rob (184.108.40.206) on June 11, 2002 at 10:15:51:
In Reply to: Active P.U.'s 9Volts vs. 18Volts posted by twisted on May 31, 2002 at 03:15:58:
: Just installed my EMG P-bass P.U.'s. First I wired them up 9 volt, then as recommended on the instructions I wired them 18 volt. The pamphlet says 18V gives you more headroom (I have no clue what they mean by headroom, with respect to pick ups) and improves overall performance. The only difference I can tell is there might be a bit more range of tone. I'd be happy if anyone more experienced with actives can point out the difference between 9V, 18V and 27V. Thanks for any input.
The pamphlet's correct - the more voltage, the more headroom. Headroom is basically punch - going from very soft to very loud, or very low to very high. The more headroom you have, the faster you can handle these transitions.
Hope you find this useful.
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