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JoMoCo
01-06-2009, 03:01 PM
I can not find a spec sheet for this driver. The older 2215A/B sheet lists sensitivity at approx "45dB spl at 30 feet with one mW input warbled 100 to 500Hz"
Thanks in advance for your help in interpreting....:blink:

grumpy
01-06-2009, 03:14 PM
http://www.jblpro.com/catalog/support/getfile.aspx?docid=1075&doctype=3


Also see:
http://www.thielesmall.com/database.asp#

Select 15", JBL, discontinued, visually scan for 2215H,
find sensitivity 96dB/1m

Hope there aren't any mistakes :)

Maybe compare K or E145 series.

toddalin
01-06-2009, 03:22 PM
I can not find a spec sheet for this driver. The older 2215A/B sheet lists sensitivity at approx "45dB spl at 30 feet with one mW input warbled 100 to 500Hz"
Thanks in advance for your help in interpreting....:blink:


94.2 dB

Calculation is:

45 dB + 10*log(1000mW/1W) = 75 dB at 1 watt @ 30 ft

20*log(3.28 ft / 30 ft) = -19.2 dB decrease @ 1 meter

75 dB - (-19.2 dB) = 94.2 dB at 1 watt at 1 meter