Bd-15 frequency response (BD-Design)

by jw70 , Sunday, April 22, 2007, 08:27 (6223 days ago) @ Bert

Hallo Bert,
yes you right, the altec horn throat is bigger, about 650-700 cm2 I think.
And it is straigher too.
So if I understand it right, this resultes in an stronger peak at about 300Hz.

Is it possible to calculate the needed notch without measuring,
because I have not such an equipment.
Bye the way there is a nice site from mr. vallieur,who built
a. midbass speaker with an frontloaded Altec 515.
He measured the same peak we are talking about.
http://www.vallieur.de

Jürgen

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