I have a 6½" 'full range' (70-17,000 hz.) driver designed for automobile
use. I don't have test equipment required to determine its free air
resonance. I want to put it in a box with a separate 12" woofer, and the
only info I could find on it is that it's designed for 'non-enclosed'
applications. Does that mean I should leave the back of its part of the box
open?
TIA

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Easy's getting harder everyday.

PanHandler wrote:

I have a 6½" 'full range' (70-17,000 hz.) driver designed for automobile
use. I don't have test equipment required to determine its free air
resonance. I want to put it in a box with a separate 12" woofer, and the
only info I could find on it is that it's designed for 'non-enclosed'
applications.

Typical of car audio drivers.

Does that mean I should leave the back of its part of the box
open?

No, that'll destroy your bass performance. In any case a mid range driver really
wants a separate internal enclosure inside a common cabinet. From what frequency
do you want to use it ?

Graham

"Pooh Bear" wrote in message
...
PanHandler wrote:

I have a 6½" 'full range' (70-17,000 hz.) driver designed for automobile
use. I don't have test equipment required to determine its free air
resonance. I want to put it in a box with a separate 12" woofer, and the
only info I could find on it is that it's designed for 'non-enclosed'
applications.

Typical of car audio drivers.

Does that mean I should leave the back of its part of the box
open?

No, that'll destroy your bass performance. In any case a mid range driver
really
wants a separate internal enclosure inside a common cabinet. From what
frequency
do you want to use it ?

Thanks Graham. I'd like it to cover the 300 & up range. The volume of its
enclosure will be 13" square by whatever height necessary, probably having a
divider to provide the cubes necessary. It's suspension seems fairly
compliant.
Joe