I have this old pair of Technics SB-3130, they are three way speakers. Both of the super tweeters are dead (infinite resistance) and I'm not sure if this impact the range of frequency feeded to the tweeter. Given the schematic diagram, if I remove the super tweeter, should I modify something to have all the high frequencied to the tweeter?
Gotcha. Should be able to connect the new tweeter before the original inductor "L2" and get good performance - I wouldn't bypass the crossover completely or you'll likely blow the new tweeters, and the sound wouldn't be as good as it would be running the tweeter through the crossover.