Hi,
- I can see from here that the bass card ( the one on the right in your picture ) is not correct . It's missing a bunch of capacitors and also has resistors in place of a few capacitors .
- You need to take these cards into an electronics service center ( it doesn't have to be JBL ) & have them populate both cards with the correct resistors & capacitors ( before your DX-1 will work correctly with your S9500 ) .
- Have them use Polypropylene type capacitors ( not mylar ) .
- Print out the info that I posted and take it along to the electronics shop / they'll need it .
- It doesn't really matter which speaker system your cards are presently set for / they need to be changed ( & JBL no longer sells them / so we've been told ) .
- It looks to be a "recommended addendum" ( after-thought ) .
- It could be meant for the HF input of each speaker box ( therefore, you'd need 2 ).
- The (3.5 mH, 2.0 uF, 7.5 ohms ) is either an LCR notch filter centered at 1900 hz /or / an impedance equalizer centerd at the same frequency ( what it ultimately does depends on its' placement ) .
- It wouldn't exist on the HF crossover cards .
- If it's strapped across the HF terminals outside of the speaker box it'll act as a frequency dependant impedance equalizer .
- If it's strapped across the drivers' terminals
inside the speaker & after the passive crossover components / it'll notch out a few db of response in the 1900 hz area .
- I don't know which scenario is recommended ( 4313B might be able to find out ) .
>< cheers
-