M5 Guru (>2000 posts)
Join Date: Mar 2007
Location: San Diego
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At idle, 20" from tip, 45 degree angle, peak measurement:
Cold: 91 dB
Hot: 74 dB
Haven't had a chance to try 5600RPM yet though.
The RS decibel meters are about $30 or so, though the new digital ones are $50.
FYI, today I have a chance to measure the sound on Tubi Rumore(just section3), and here are the number,
I wonder whether anyone has the number for Tubi Regular
Those measurement were done at 20" away from the tip with 45 degree angle.
Last edited by keang24; 30th July 2007 at 08:17 AM.