twin 6.5" speaker box

[nige838]

anybody ever seen/heard of putting two 6.5" speakers in a box (seperated internally by a wall) but in the same box? I'm interested in finding/building a box with twin 6.5" speakers in it...

[Cal Weldon]

sure, nothing wrong with that. You don't even have to divide it, just make it twice as big as for one woofer.

[Richard Ellis]

Actually nowadays it is a very common arrangement. A side benefit (Amongst others) is locating a 'tweeter' between the woofers.
This arrangement "corrects" what's called lobing errors.
Kinda like my DIY speakers...two 6 1/2 " drivers, and a tweeter between the two.

__________________________________________________ _____Rick.....

[luka]

I have seen 4 x 6.5" in each box

[picowallspeaker]

seperated internally by a wall

Cut a hole in there and put the second woofer there . In this push-pull arrangement the box will be smaller than having them on the same baffle (sharing the same volume) because the Vas remains the same..

[nige838]

Originally Posted by picowallspeaker

Cut a hole in there and put the second woofer there . In this push-pull arrangement the box will be smaller than having them on the same baffle (sharing the same volume) because the Vas remains the same..

I'm sorry, but what do you mean? I don't know what Vas stands for, and where are you talking about cutting a hole and what's push-pull?

Thank you very much for your time, I know that my question are probably simple ones to you.

[PeteMcK]

I think he's referring to what's called an isobaric arrangement. There are several ways to use 2 drivers together in a box, it would help if you gave us an idea of the use you're going to make of the cabinet. Vas is a speaker parameter, used (with others) to determine the size of box required.

Do you have particular drivers already?

[picowallspeaker]

It may be not for sure so simple...Just thinking of the variety of speakers produced ,it is not even easy for a 6,5" to do Isobaric
Which ,isobaric ,has often been used in the cars..and is often referred to a narrow band of low frequencies reproduced (by the isobaric sub) and has the plus of allowing one membrane to "see" the other ,reducing some distortion related to weight and velocity .
If large air pressures (low and loud frequencies)can be calculated and also the box , it may be not so predictable for mid-tones...since one cone's movement will be determined by the other ,and big oscillations and not exact matching would produce some cancellation in the mid-range , well
maybe is the isobaric that prevails
I'm looking for a "filler" to cover the hole in that range....anybody