Originally Posted by SluggoCFF
Not worried about the Warranty since they're both a few years old (I'm just happy I don't need to throw them away): I'm one of those that doesn't have the time to learn how everyone's return policies work, it just frustrates me to no end...
Since 100 Watt's is pretty useless for a Subwoofer I guess I'd need to look into increasing their power handling limits. About increasing the power handling of the Tube's (by replacing the BTA drivers with the passive BT drivers):
How much are BT Drivers?
Where can I get the Passive BT Drivers?
How difficult is it to replace the BTA Driver with the passive BT Driver?
You can order the replacement drivers through the online store. Either one of these will work if you want to get down to a 2 ohm mono load;
Switching out the subwoofers is quite easy. Remove the fasteners, pull of the grill, remove the woofer and replace.