effciency?

bhg41088 · 29th July 2004, 01:58 AM

I have 8 8" drivers that have an eff. of 88db/1 watt. I am going to have 4 sets of 2 in series, then parrellel all the sets for a 4 ohm load. What effciency will the have overall?

Jim Griffin · 29th July 2004, 02:21 AM

Ideally, the array sensitivity improvement is 9 dB while you can achieve 3 dB improvement from the impedance reduction. This is a total of 12 dB fo ryour 8 drivers. In practice you may not realize all of this--drivers must be spaced within a wavelength, some array interactions, and any allowance for baffle step compensation will degrade the 12 dB.

bhg41088 · 29th July 2004, 03:16 AM

they will only be playing up to 300hz, with a very wide baffle, around 6 feet. Do i still need BSC?

29th July 2004, 01:58 AM	#1
bhg41088 diyAudio Member Join Date: Feb 2004 Location: Tennessee	effciency? I have 8 8" drivers that have an eff. of 88db/1 watt. I am going to have 4 sets of 2 in series, then parrellel all the sets for a 4 ohm load. What effciency will the have overall? __________________ -

29th July 2004, 03:16 AM	#3
bhg41088 diyAudio Member Join Date: Feb 2004 Location: Tennessee	they will only be playing up to 300hz, with a very wide baffle, around 6 feet. Do i still need BSC? __________________ -

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29th July 2004, 02:21 AM	#2
Jim Griffin diyAudio Member Join Date: Jun 2003 Location: Tennessee	Ideally, the array sensitivity improvement is 9 dB while you can achieve 3 dB improvement from the impedance reduction. This is a total of 12 dB fo ryour 8 drivers. In practice you may not realize all of this--drivers must be spaced within a wavelength, some array interactions, and any allowance for baffle step compensation will degrade the 12 dB.

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