Diane writes: >>The noise figures you posted are interesting, but do not tell the whole story. It is important to know the facts to adequately protect yourselves. Another consideration is what frequency we are talking about. 90 db of 200 Hz isn't the same danger as 90 db of 4,000 Hz, is it? Ed Foote RPT http://www.piano-tuners.org/edfoote/index.htmll -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/caut.php/attachments/20110303/18692f63/attachment-0001.htm>
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