From: John Woodgate
Subject: Re: Cancel speaker resistance?
Date: Mon, 16 Sep 2002 21:52:13 +0100
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Mon, 16 Sep 2002 21:26:34 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Arny Krueger
wrote (in <0Aqh9.381$HT1.email@example.com>) about 'Cancel
speaker resistance?', on Mon, 16 Sep 2002:
>Based on what I've learned about changes in harmonic content due to
>nonlinear distortion from
>http://www.pcabx.com/technical/nonlinear/index.htm , it takes lots of
>nonlinearity to actually change sound quality.
Depends what you mean by 'quality'. 1% of the wrong sort of distortion
can degrade some programme material to what many people would call 'low
> Nonlinear distortion
>often increases with loudness, meaning that it is not as noticeable
>at low levels.
Look up 'crossover distortion'; much more evident at low levels.
>In contrast, changes in frequency response are about the same at all
Since the human ear's response falls off rapidly at low frequencies at
low levels, uneven response at low frequencies is not easily audible at
low sound levels.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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