I don't know how many people knew about this, but for those who don't it's valuable (literally) information...
Scan-Speak offers an 'extended exchange' program that essentially provides you 50% off a brand new replacement drive unit should you damage one and/or the product fails outside of the mfg warranty period. You simply email them the info they need and they provide you with a discount code to use on their online store.
Information can be found here:
http://www.scan-speak.dk/news/20141212a.htm
I just went through this to replace some blown tweeters (totally my fault). I e-mailed Scan-Speak through the contact they provide in the above link. I explained I had (4) tweeters that I would like to request an exchange discount for. (2) of the tweeters had been disassembled (I was curious if the problem was something I could fix myself). I explained I had fried these out of my own negligence and also understood if they wouldn't cover the two disassembled drivers.
I got an email back the next day requesting pictures of the units and their serial numbers. I obliged. The next email back was with an approval for my request of a discount and they offered it for (4) drivers. They provided me a code I used at checkout through their online store. Total cost shipped to my door for (4) replacement Scan D3004/60200-00 tweeters: $196 USD.
Keep this in mind next time you blow a Scan-Speak drive unit. It really saved me a good deal of money.