I've been away for a while- didn't realize there were more responses. Thanks.
Is this because they're rated responsive only down to 67Hz? Honestly, this is a little higher than I expected. Physically, they look they they would be more impressive than that, perhaps partially due to the fact that they're shielded (and thus bulky in the magnet area.) I think I may go through with it anyway. I can always replace them with woofer drivers and use these for something else.
-Michael
You can't look at a driver and know its application. You can however get an idea from the weight of the cone and the stiffness of the suspension.
In general sub drivers have heavy cones and compliant suspensions.
You don't want to build enclosures for those speakers, as all enclosures have to be built for a specific driver.
Before building an enclosure you must know, or be able to measure the Thiel/Small parameters of the driver. Then you design the enclosure according to those parameters and model it.
Only then can you draw up plans and start cutting wood.
So the right enclosure for your speakers, will be the wrong enclosures for the next speakers you buy.
And honestly trying to make a sub out of those drivers is a waste of time and effort and you will get discouraged.
Building speakers is not inexpensive and there is a lot of labor involved. To make it worth it you need to start with a plan that will produce good and predictable results.
In these days of computer modeling you should know how your sub will perform before making the first cut with the saw.
