Add Subwoofer to HK audio in R56
Looking for technical advice, searched the forum and canít find an answer so here goes:
2010 JCW with factory Harmon Kardon system. I decided to add a JL Mono amp and JL 12Ē Sub, used the high pass connection from the rear speaker terminals. Everything works but:
1) I have noticed the bass from the rear 6x9,s has stopped working - well they have gone very quiet and the punch of the original bass has gone - any ideas? Could the high pass connection be causing an issue? Someone suggested connecting the JL amp prior to the HK amp?
2) I have noticed that the sub has a really bad spike in the bass at a certain frequency, someone advised that the HK amp has a bass boost to help the original 6x9,s and this would cause the issue?
Really appreciate any advice from people who have done a similar install and maybe had the same issue?
Let me know