Two woofers--two chambers

[Mos Fetish]

Let's say I've got two woofers per speaker in a 3 way system.

The woofers are in a certain vb with a certain fb and f3.

Is there any advantage to putting each woofer in it's own sub-enclosure obviously with 1/2 the vb which should still produce the same f3 using the same fb?

The woofers would be connected in parallel.

Does it matter if each woofer operates in it's own enclosure as opposed to sharing the same enclosure. with the other woofer?

Mos

 

[roddyama]

The one advantage I can think of is if both speakers are mounted in the same enclosure. By sharing the enclosure, the differences in the speakers will be averaged,... to an extent.

 

[usekgb]

The only advantage with using two separate cabinates would be that you could tune them differently. Take a look at Weems' dual chamber reflex enclosure in "Great Sound Stereo Speaker Manual." He basically tunes the two chambers an octave apart so that one of the woofers reproduces the bass, and the other produces the mid-bass.

Cheers,
Zach

 

[Mos Fetish]

I was thinking, in a 2.5 way with both midbass drivers in parallel, having separate enclosure could be a real advantage as the pressure wave from the .5 woofer wouldn't be interacting with the mids in the other driver.

But, that doesn't mean much when we're talking about a proper 3 way.

Mos