PR Question

Discussion in 'Archived Threads 2001-2004' started by Dustin B, Jun 17, 2002.

  1. Dustin B

    Dustin B Producer

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  2. Greg Monfort

    Greg Monfort Supporting Actor

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    Yes, it's called a low pass filter and presents the diaphragm with a high acoustic mass load. If you have a small sealed speaker laying around, feed some LF into it while moving the baffle face ever closer to a wall to hear the effect.

    This was a common technique way back when drivers had low Q so needed all the help they could get. A corner cab with a slot down the back, where the peak of the corner would normally be, combined with a small gap between the side of the cab and wall created a slot loaded reflex vent.

    Regardless, this is an active design so you don't know what the effective parameters for the drivers are, so no way to figure the PR requirements. A single 15" may very well be adequate based on fiddling with sims, with loading only being required to offset excursion a bit.

    GM
     

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