I have this DIY sealed 4cf TC2000 subwoofer that is up for sale. The box was my first DIY attempt and although it is sonically perfect it is not cosmetically perfect so keep that in mind.This is a sub only and has no amp. I am selling it so I can upgrade to a DTS-10 Danley and I need a few more bucks. The price is $225 with the box or $200 for just the driver plus shipping. Price is firm. Here are some pics. PM me if interested.
http://i184.photobucket.com/albums/x164/tcarcio/100_0430.jpg
http://i184.photobucket.com/albums/x164/tcarcio/100_0429.jpg
It seems to be sub day today!
Here is the
model of your sub.
That driver is definitely for sealed use only. It does not model well vented and needs a 7 cu. ft enclosure, and there are much better options for that application.
xmax for that driver is 28 mm, which is excellent. The F3 in your enclosure is 40 Hz 12 db roll off per octave. So it around 12 db down at 20 Hz. It will tolerate some Eq, at 12 db per octave boost starting at 40 Hz. However by applying Eq to the driver to 20 Hz, you will consume a lot of the drivers power capacity and reach xmax limit. You will with every sealed application. So if Eq is applied to extend the flat response to 20 Hz, the spl will be limited to around 103 db. Still pretty loud, but not window shattering by any means.
I think the 4 cu. ft. box volume is about right, that gives about the lowest achievable Fs for that driver and Qtc is just below 0.5 at 0.485. This will make it a very good music sub. The bass will be very tight and controlled, there will be no boom whatever. Some Hollywood explosions may seem a little tame. This will be a very well mannered sub, and I would think you would be able to pick out the tympani notes just fine.
I think it will need the Eq though to really perform, and this is normal for all sealed drivers. It has enough xmax to tolerate it.
