Infinite Baffle Construction for Driver Measurements

Tector · 19th March 2009, 02:46 PM

Does anyone who is measuring their own drivers have any suggestions or descriptions for constructing an "infinite baffle"? I have a very quiet spare bedroom in my basement that I'm about to convert to a speaker driver test room. Any help is greatly appreciated.

Rudolf · 19th March 2009, 03:57 PM

I know of three driver test rooms used by professionals. The volume behind the IB is ~ 1000 l. Baffle size is at least 2.5 x 2.5 m for the IB situation. In all cases the IB is in/on the floor (NOT in walls) to get maximum free space around the driver. It´s easier to calculate with a single ceiling reflection than with two or three reflections off near walls.

anechoic room at Visaton

Optimised room at hifi-selbstbau.de

Measurements at Hobby-Hifi

Tector · 19th March 2009, 08:31 PM

Thank you! That helps me a lot. My room won't be quite that elaborate, but the pictures definitely point me in the right direction.

19th March 2009, 02:46 PM	#1
Tector diyAudio Member Join Date: Mar 2009	Infinite Baffle Construction for Driver Measurements Does anyone who is measuring their own drivers have any suggestions or descriptions for constructing an "infinite baffle"? I have a very quiet spare bedroom in my basement that I'm about to convert to a speaker driver test room. Any help is greatly appreciated.

19th March 2009, 03:57 PM	#2
Rudolf diyAudio Member Join Date: Mar 2003 Location: Germany	I know of three driver test rooms used by professionals. The volume behind the IB is ~ 1000 l. Baffle size is at least 2.5 x 2.5 m for the IB situation. In all cases the IB is in/on the floor (NOT in walls) to get maximum free space around the driver. It´s easier to calculate with a single ceiling reflection than with two or three reflections off near walls. anechoic room at Visaton Optimised room at hifi-selbstbau.de Measurements at Hobby-Hifi __________________ www.dipolplus.de

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19th March 2009, 08:31 PM	#3
Tector diyAudio Member Join Date: Mar 2009	Thank you! That helps me a lot. My room won't be quite that elaborate, but the pictures definitely point me in the right direction.

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