"corrector" (crossover) for isobaric

[catorg]

Hello to all, I am new here and quite new to loudspeakers designing. But I am experienced in musical instruments diy, so woodworking is no problem.

I want to do my own loudspeakers for my virtual pipe organ. I found the Petit-Orgue from Visaton ( Visaton - Lautsprecher und Zubehör, Loudspeakers and Accessories ), but unfortunately, this is not easy to get parts from outside here (Colombia). So I would to do it myself with LS I can buy here, but Visaton shows a corrective network for the woofers ( http://www.visaton.de/bilder/weichen...gueripol_w.GIF ), I suppose there is a reason.

I would like to know what is to correct is this case. I understand this design to be an isobaric-open-dipole. ??

Any help would be great...

[kevinkr]

Welcome to the forum!

I can't help you with your question, but hopefully someone will stumble upon it shortly who can..

[Joachim Gerhard]

It is very similar to the Linkwitz Orion H - Dipole but the Ripol does not take advantage of cancelation of second harmonic by reversing one woofer mechanically and connecting them out of phase for mechanical in phase. The only advantage i see is the very compact size. The equalizer could make two things : raising the amount of deep bass because a dipole of that compact size has quite a loss in the lower regions and making sure that frequencies over say 150Hz are suppressed because the Ripole has a very audible resonance in the upper bass - lower mids. Simply talk into a container and you have a similar effect.

[Joachim Gerhard]

Here is some more technical information on a more general basis :
DIY-dipole-1

[PeteMcK]

I doubt this design is suitable as a musical instrument speaker, it's too inefficient.
I'd go for a more conventional design using a PA driver.