Driver position on the enclosure

[deromax]

Hello! My new subs project involves boxes that will serve as the stands for my small mains, so they have a "vertical" orientation if you will. I want to place the drivers on the front panel. Would you favor a driver placement near the floor, where it may benefits the most from the boundary created by the floor and have a lower center of gravity. Or a placement near the top, where it may blend better with the low-mid driver? Or dead center, for the look! :)

The crossover will be in the 110-120 Hz region.

Thanks!

PS The two Dayton Reference 15 HO just came in. What BEASTS they are!

[Pete Schumacher ®]

> Hello! My new subs project involves boxes
> that will serve as the stands for my small
> mains, so they have a "vertical"
> orientation if you will. I want to place the
> drivers on the front panel. Would you favor
> a driver placement near the floor, where it
> may benefits the most from the boundary
> created by the floor and have a lower center
> of gravity. Or a placement near the top,
> where it may blend better with the low-mid
> driver? Or dead center, for the look! :)

> The crossover will be in the 110-120 Hz
> region.

> Thanks!

> PS The two Dayton Reference 15 HO just came
> in. What BEASTS they are!

There's significant inertia involved with a large woofer moving rapidly. Having it closer to the floor allows better coupling to the floor and adding rigidity to the mounting surface.

100Hz has a wavelength of around 10 feet. Close integration at 100Hz isn't a problem.

[deromax]

> There's significant inertia involved with a
> large woofer moving rapidly. Having it
> closer to the floor allows better coupling
> to the floor and adding rigidity to the
> mounting surface.

> 100Hz has a wavelength of around 10 feet.
> Close integration at 100Hz isn't a problem.

Yep, that make great sense and tend to validate what I'm thinking. Thanks!

[Paul K.]

not only for woofers, like on Dan's HOSS and Paul C's Athers, but for bottom-firing ports like on Jim Holtz's mini-Statements.
Paul

> There's significant inertia involved with a
> large woofer moving rapidly. Having it
> closer to the floor allows better coupling
> to the floor and adding rigidity to the
> mounting surface.

> 100Hz has a wavelength of around 10 feet.
> Close integration at 100Hz isn't a problem.

[Andy_G]

> not only for woofers, like on Dan's HOSS and
> Paul C's Athers, but for bottom-firing ports
> like on Jim Holtz's mini-Statements.
> Paul

yep, a hollow stage can play havoc with bass !!!