Date: Tue, 09 May 2000 09:37:25 -0700
From: Ed Loranger 
To: "Maddog 'n' Miracles" 
Subject: Re: More Resonant Speaker Stuff

[snip]

If you are having those resonances then there
is a problem.

#1, the smaller tube contained within the
larger, 2inch diameter pipe is CRITICAL
and should be the dimensions I specified.

The length of the little pipe is also
CRITICAL.

Additionally, the 2 inch opening in the
sphere must use a speaker no larger than
1 inch and there absolutely MUST be air
flow around the edges of the speaker and
the little speaker should be recessed within
the sphere by about 1/8 to 1/4 inch.

I typically have the plunger nearly ALL the
way out of the metal pipe affixed vertically
to the sphere.

[snip]

-Ed
--
72/Ed we6w; A-1 OP; SOC#63; QRPL#1068
http://www.qsl.net/we6w Santa Rosa, CA
My 2 pennies worth is just common cents.