2010 Camry JBL Amplifier Question (Subwoofer Install)

[Dunk7]

I cannot find an answer anywhere. Not from JBL or Toyota

Background:

I own a black 2010 Camry SE with the JBL sound system.

It has a 440W DSP JBL amplifier installed from the factory under the passenger seat.

I am aware that DSP amplifiers are very unique in that they perform most of the controls related to the audio system as opposed to the head unit. They also have highpass and lowpass filters onboard in order to send the correct signals to the appropriate speakers.

I am getting ready to install 2 10" subwoofers and a 1200W Amplifier (toned down to avoid changing alternator that only puts out 100A)
(2) Boston Acoustics G510-4
(1) Kenwood KAC-X1R

I am planning on just hooking up to the outputs directly on the amplifier to avoid having to splice cables and keep my warranty as intact as possible. This is where my question comes in.

Question:

What frequencies are passed from the amplifier to the stock 6 x 9s? I cannot find this information anywhere. If they are not recieving the very low frequencies then there is no point in passing that signal on to my subwoofers.

I have a MTX Re-Q that is meant to bring back the bass that is many times
reduced in stock headunits to avoid damaging factory speakers, but if the signal is completley gone through the use of the filters in the amplifer then even that won't be able to bring it back.

I know that forum member Bigtuna was able to hook into his 6x9s in order to feed his subwoofers, but I don't know if he was getting the full desired signal.

Any help is greatly appreciated.
Thank you in advance for looking over my question.

[darksparkz]

What if you had an aftermarket headunit that had RCA outputs, then you can run the RCAs from the amp for the sub to the head unit instead, even while keeping the factory JBL setup.

You can get a JBL adapator to connect to an aftermarket headunit to make sure the JBL speakers/amp works.

[zjennis]

I own a white 2007 Camry Hybrid with the JBL sound system and Navigation.

I just put in (2) Rockford Fosgate 15 inch subwoofers and a constant power amplifier to power them. To hook them up, I bought a HIGH/LOW LEVEL CONVERTER that I hooked up to the back 6X9 speakers and converted them to low level Rca's and hooked them up to my amp. The sound quality is great! I can't seem to figure out another way of hooking them up with the factory head unit since the sound is processed through the JBL amp under the seat (which has no RCA output's)

HIGH/LOW LEVEL CONVERTER:

Amazon

Amazon

[SwiftKill]

Originally Posted by zjennis

I own a white 2007 Camry Hybrid with the JBL sound system and Navigation.

I just put in (2) Rockford Fosgate 15 inch subwoofers and a constant power amplifier to power them. To hook them up, I bought a HIGH/LOW LEVEL CONVERTER that I hooked up to the back 6X9 speakers and converted them to low level Rca's and hooked them up to my amp. The sound quality is great! I can't seem to figure out another way of hooking them up with the factory head unit since the sound is processed through the JBL amp under the seat (which has no RCA output's)

HIGH/LOW LEVEL CONVERTER:
http://www.amazon.com/BOSS-HIGH-LOW-...9448818&sr=8-3

Did you still have to hook the remote wire up to the stereo? I have the high/low level converter.

[zjennis]

Originally Posted by SwiftKill

Did you still have to hook the remote wire up to the stereo? I have the high/low level converter.

No, I hooked it up to a 12 volt plug in since it is hooked up the ignition and it would be an easy place to tap into.

[SwiftKill]

Ya I figured that out after looking. Turned out pretty good just got to get the levels on the amp and converter set right.

[zjennis]

Awesome! Where did you hook it up?

[SwiftKill]

I ended up hooking it to the accessory plug next to the auxiliary plug. Spliced my amp into both rear speakers with a line level converter.

[zjennis]

Same here. I have had it like that for a while and it sounds great

[SwiftKill]

Its not too bad. I don't get near the bass when im using the radio. It sounds best when I use cd or ipod.