WIN ISD

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   I was wondering a lot about the WIN ISD behaviour related to the raising max spl
when you double numbers of drivers and box volume....

normally youve got 3dB more spl if you take 2 instead of 1 loudspeaker and power
them EACH with the same power as in single.

win isd shows 6dB more MAX spl, and i dont understand this.

maybe sb can explain or help?

thx

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airbell Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 11 June 2009 Location: Berlin, Germany Status: Offline Points: 285	Post Options Post Reply Quote airbell Report Post Thanks(0) Quote Reply Topic: WIN ISD Posted: 28 December 2010 at 9:59pm
	I was wondering a lot about the WIN ISD behaviour related to the raising max spl when you double numbers of drivers and box volume.... normally youve got 3dB more spl if you take 2 instead of 1 loudspeaker and power them EACH with the same power as in single. win isd shows 6dB more MAX spl, and i dont understand this. maybe sb can explain or help? thx

mobiele eenheid Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 August 2004 Location: Netherlands Status: Offline Points: 1568	Post Options Post Reply Quote mobiele eenheid Report Post Thanks(0) Quote Reply Posted: 28 December 2010 at 10:19pm
	3 dB due to doubling of power and 3 dB due to the drivers coupling, based upon the assumption that they are within 1/4 wavelength of each other (that's within 86 cm distance of each other at/below 100 Hz). The 6 dB is a bit theoretical and is likely closer to 5 dB. Regards Johan Edited by mobiele eenheid - 28 December 2010 at 10:20pm