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Old 12th February 2009, 02:16 AM   #1
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Default maximum safe dB in open baffle

I want to make a pair of open baffle speakers. As my daughter will be the main listener, they will need to be played loud.
I wanted to make a high efficiency pair, and mate it with a St-70 run in triode mode (20 Watts) so efficiency and high spl are questions I'm not finding answers to.
How loud do these full range speakers go in an open baffle?
What happens to the efficiency of a speaker in an open baffle?

paul
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Old 12th February 2009, 03:38 AM   #2
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It's not far from the maximum output of the FR, depending on the
woofers. Typically you need a little more power on the bottom,
especially if you Eq it, but I use 25W on the bottom and 15 on the
top and it plays loud enough for me. Any more and you will degrade
your ears over time.

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Old 13th February 2009, 08:45 AM   #3
graaf is offline graaf  Poland
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Default Re: maximum safe dB in open baffle

Quote:
Originally posted by pforeman

How loud do these full range speakers go in an open baffle?
What happens to the efficiency of a speaker in an open baffle?

paul

www.linkwitzlab.com/spl_max1.xls

best regards!
graaf
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