Enclosure for a mid-bass speaker? - diyAudio
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Old 1st September 2007, 06:02 PM   #1
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Join Date: Sep 2007
Default Enclosure for a mid-bass speaker?

Ok... let me give you some background:

I had two JL Audio 12w7 subwoofers in my TT with the Focal Utopia front and rear components. The JL's took up way too much space so I pulled them out to redesign my setup with something much smaller (thinner, less airspace commitment). Well I had not found a subwoofer that fit my taste so I figured I would wait for next year's line-up and see if any of the companies brought some better slimline shallowmount subs to the market. In the mean time, I decided to upgrade my rear midrange focals with some 6" CDT ES6+ Midbass woofers for rear channel midbass. This would accomplish two things. It would satisfy my midbass needs much better than a focal 6" and it would also provide enough bass-tone until I could choose a subwoofer. Here's a picture of the CDT Mid-Bass speakers I purchased:
Click the image to open in full size.
Click the image to open in full size.

As you can see... these things are HUGE. After installing these speakers in the rear panels of my TT, I realized that they are so deep that the back of the driver grounds out on the car's frame. Additionally, not only does the back touch the frame... but the cone hits the rear backseat panel every time the bass hits. Obviously this is no good. The speaker is so deep that it hits on the front and rear of the driver.
So now I am trying to figure out how this speaker is suppoed to be mounted. the sheet that came with this speaker actually has enclosure dimensions on it. Is this midrange speaker ACTUALLY intended to be mounted in a box?!
This evening I reinstalled the Focals in the rear and tomorrow's project is to build a box for these two 6" mids. -sigh- It's a damn good thing these speakers sound incredible or I would just take them back. However, they DO sound incredible.... they have the bass output of a 6x9 or an 8" sub and still maintain the midrange tones with that bass.
*Update* I finally decided on a subwoofer. I originally was looking for an Illusion Audio Cd10i but for the life of me I just cannot find a way to buy them. Their site shows everything except how/where to purchase the product. I decided to go with a Sound Splinter Ignition 10" instead.

Does anyone have any idea how to build a "vented" enclosure for a 6" woofer? Airspace requirement is .5cf. It's .3cf for a sealed enclosure.

If someone has a link to an enclosure calculator... please help me out. This is a little out of my realm of expertise.
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Old 2nd September 2007, 01:58 PM   #2
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Old 2nd September 2007, 03:11 PM   #3
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Join Date: Apr 2001
Location: Leeds, UK
Any links to the driver T/S parameters?

That orange basket is funky
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Old 2nd September 2007, 05:06 PM   #4
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Join Date: Sep 2007
Unfortunately not. while CDT makes outstanding speakers, I could not find any specification data on the webpage.
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