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Old 12th January 2010, 01:56 AM   #11
Glowbug is offline Glowbug  United States
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Location: Hillsborough, NC
I believe they use calibrated instrumentation mics at the competitions. They cost more than your stereo and car but together.
The Termlab sensor retails for $650...Termpro, db drag racing, spl meter, spl car audio, loudspeaker systems, wayne harris. So not cheap, but not B&K prices either

The TL is the only SPL sensor worth buying for this application, IMO. You might be able to find one used from a place like Car Audio at CarAudio.com or on Termpro's SPL forum.
The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry
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Old 23rd September 2012, 01:54 PM   #12
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Location: Kallithea, Athens
Arrow I also need to buy an SPL meter

Good day to all

I am refreshing this thread by placing my needs. Here we go:

The standard Radio Shack SPL meters, both - analog and digital, have served well till today. However, as we all know, they cannot measure SPL of low frequencies (well, the specs speak for a FR of 32-8000 Hz at C weighting and 500-10000 Hz at A weighting, but these are the theoretical two end limits) and at very low levels. As far the lowest level, these meters start their measurement range from the 60 dB point, which in some cases is much more than the required.

I am therefore looking for a meter that can go down to 25 or even 20 Hz and that can have a starting point from 40 or even 30 dB. Is there anything like this? Is it costly?

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Old 23rd September 2012, 02:44 PM   #13
xmo is offline xmo  United States
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Low frequency sound pressure level meter/Precision Sound level meter TYPE6238L - ACO Co., Ltd.
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Old 23rd September 2012, 09:30 PM   #14
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Location: Kallithea, Athens
Thumbs up Thanks!

Thank you, xmo, for the info. Do you know if they ship it worlwide?

Should I ask them directly?

I just saw their price (400,000 Yen)! Awfully expensive and it will be more, if you calculate shipment cost and customs clearance.
Apparently, I need to see for something more affordable. Thanks, anyway


Last edited by Panagiotis Melas; 23rd September 2012 at 09:44 PM.
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