Because a PA isn't an instrument. It's just something that takes the 'important' thing, the instrument or voice, and tries to present it louder and clearer. Some have had somewhat 'signature' sounds but not to the extent where someone is going to stop and say, "wow, listen to that EON wail".
chas
This was in response to Diki's post.
[This message has been edited by cgiles (edited 10-21-2009).]
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"Faith means not wanting to know what is true." [Nietzsche]