Posted by Wayne Parham [ 70.128.97.44 ] on September 06, 2006 at 17:26:56:

In Reply to: 9Pi mid-bass horn dimensions??? posted by bill epstein on September 06, 2006 at 12:22:22:

The midbass horn used in the 9π loudspeaker is a straight sided horn designed to be used with a 15" driver. Each wall angle is 20° so the total coverage angle is 40°. The length is 32", mouth dimensions are 28" x 28", throat is 7.5" x 7.5", front chamber is 800in³ and rear chamber is 1200in³. Here are the Hornresp parameters for the horn with a JBL 2226:

9π Midbass Hornresp input screen	9π Midbass SPL response

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