Yes it been a year but I just got here. ask these guys they will go a little further with their recommendations. I got great results form then on my DQ-18 and the DQ-10 is more common or well known to speaker restores. They recommend Seas and scan speak driver and are also great at crossovers. I bet you don't need the info now however. Enjoy! https://www.madisoundspeakerstore.com/index.php?p=home
Yes they are from KSC. Not made anymore, I have replacement recommendations from both Parts express and Madison sound. All good choices. On another note if anyone knows the values of the coil inductors on the crossovers I would like to know that please.