I had installed the JBL GTO 6508 C (another product) in an Astra F Bj. 92 and since I had there problems to place the switch, I have now to be installed in an Astra F Bj. 98 for a version without Soft and instead decided with a resistor. I took care that it might sound bad because the tweeter to make do with the resistance, but I must admit that the sound * is great, I especially like that JBL some adapters for the tweeter mitliefert so that an attachment is not a problem processing the products is great and the quality leaves nothing to be desired.
* I would like to note that the LS are operated directly, no amplifier, standard cable, radio: JVC KD-R432E and volume is approximately at level 14, the environment is therefore not irradiated) who has similar requirements, which are these speakers highly recommended, but who wants to operate it with amplifier and capacitor have to look elsewhere or try it yourself, in which case I can say to the LS nix because I prefer something different for LS.