The Kenwood DDX9907XR Head unit normally linked utilising the RCA Front and Rear sound Preouts toward JL acoustics JD400/4 RCA Inputs CH. 1&2 and CH. 3&4 plus the Kicker 46CSS654 kept & correct door speakers attached to the presenter Outputs(CH. 1&2) and Kicker 46CSC6934 remaining & best rear deck speakers connected to the presenter Outputs(CH. 3&4).
I really don’t think I am able to change the OEM top Center Speaker(Boston 2 Ohm middle) using the Kicker 47KSC2704 4 Ohm Mid and then leave they connected to the OEM Amp side presenter productivity because the OEM is actually 2 Ohm productivity. Your aim above, I think this is exactly why it’s higher when it is plugged in.
From extra studies( it appears to be like… solution 1… i could set an audio speaker L-Pad Attenuator regarding positive audio speaker line between the OEM Amp as well as the new Kicker 47KSC2704 4 Ohm middle and make use of the attenuator to match the quantity making use of the door speakers Option 2… add a sign processor in to the program, this appears finest but I really don’t know exactly what otherwise I want to get and ways to catch almost everything up. Alternative 3… buying another type of Amp that supports the 5 speaker set-up You will find. Does one actually can be found because the top heart speaker are a mid assortment speaker. Solution 4… something else.
Hey there Farrell
Question… how many other choices perform You will find allowing you to connect the Kicker 47KSC2704 4 Ohm Mid in to the latest program without needing the OEM Amp?
I enjoy become careful with terminology as normally it may develop misunderstandings or offer ideas that are not rather accurate. In this situation, it’s important to remember that there is no such thing as a a€?truea€? middle audio speaker if you do not’re utilizing a signal processor or audio noises average that provides a completely independent middle station sign source.
The challenge here’s the heart audio speaker has even more volume and capacity to they than each presenter, which means you will need to fall a reasonable quantity of power across a resistor to have the levels down
Including, in car sound processors Dolby expert reasoning II can emulate a genuine center station [deriving center from stereo, not just L+R mono]) whenever a DTS or Dolby online indication just isn’t current. That is how I used a center channel me.
What you’re willing to perform inside set-up are write a a€?center filla€? or a€?pseudo-center/monoa€? mono presenter setting. This article your connected to don’t very describe they just how i’d have actually hoped, as they’re mainly concerned with ideas on how to hook it up. AudioControl once had a great white papers describing the reason why L+R is harmful to stereo imaging but i cannot find 
it, regrettably.
Anyway, for the setup there is alot taking place. Therefore to reach the a€?meat and potatoesa€? from it all:
a€? You are able to a 4I© audio speaker together with the OEM 2I©. It is going to run alright, with 1/2 the efficacy of a 2I© audio speaker. a€? you happen to be using both RCA and speaker-level signals which means that the quantity may possibly not be properly proportional often times. You need to need just one single or or the different, not both signal sort. a€? The JL amp try bridgeable, and what might be accomplished was need tri-mode because had previously been known as in older times. Which is just wiring one speaker in bridged mode while 2 stereo speakers are also wired one every route as regular.
I figure *at the very least* -15dB is a great begin, therefore you’ll need a some energy resistors of rather big energy score. Maybe not useful, and they’re going to get hot at high power result furthermore. (considering the thing I have examining using my presenter L-pad calculator here.)