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11-25-2006, 10:33 AM

#21

Dukk

Administrator

Join Date: Feb 2006

Posts: 16,855

Quote:

Originally Posted by zinger002

would a passive radiator have the same effect?

Not really. The purpose of a passive radiator is similar to a vent in that it harnesses the wasted internal energy of the enclosure for additional output. They're finicky though so most people avoid them.

11-30-2006, 04:36 PM

#22

Haunz

4000 Watt CAFz'r

iTrader: (3)

Join Date: Jun 2002

Posts: 4,218

Quote:

Originally Posted by zoomer

Haunz, add some more numbers and describe how you measured it yourself. Tell us about box modes..how you got that 163 Hz (as in where to get free download) etc. Share information with us so that we can all learn from it.

I wanted to post some charts from a book by yamaha that outlines the effects well... 'sound system reinforcment'... But I can't find it...

at anyrate a small clairification is needed.. 163hz is where refraction will start going on.... the first actual standing modes will be at 565hz....

True enough this is much more important when dealing with large cabinates and drivers reproducing higher frequencies.... but Ill guarentee that fill will help get rid of audible distortion in any scenario.....