JBL system/speakers - Toyota Nation Forum : Toyota Car and Truck Forums

sparky472 · 03-19-2008, 12:17 PM

I have a 2008 Hybrid with the JBL audio (no nav). I've never liked the "imaging" - the sound seems to be coming too much from the front, as opposed to the sides. I realied yesterday that it's pretty much just bass coming from the door speakers.

Mind you, I don't really know much about car audio - just what sounds good to me. Is it possible to replace the speakers in the door with some regular mids or a two way speaker? I'm assuming I couldn't just switch out and that the output on the amplifier determines what is going to a speaker? Or am I wrong about that? I'd love not to have to change the amplifier out also, if I don't have to.

The system has more bass response than I need. I'd rather have more of everything else coming at me from the sides than just bass.

Thanks in advance for any advice on this.

Mistabullet · 03-19-2008, 12:19 PM

Have you tried adjusting the fade towards the rear? I set mine to R-3 and it seems to balance everything out.

azngotskills · 03-19-2008, 12:31 PM

have you also tried lowering the bass?

Actually the goal of car audio is to have the sound coming in front of you like on a stage, similar to how a real concert should sound

sparky472 · 03-19-2008, 01:09 PM

yeah, I have the bass levels where I want and the fader where I want. I hear what you're saying about the sound coming from the front, but I think that given the positioning of the speakers in a car, it just doesn't sound right to my ear as it is.

azngotskills · 03-19-2008, 04:00 PM

I understand but i dont think changing just the speakers will do much. IIRC the JBL system has a preadjusted frequency response to the acoustics of the car, causing the certain image. The only way that i can think of to fix your image problem is to add you own DSP like the Rockford Fosgate 3sixty.1 or JL cleansweep, but that might just lead to replacing your speakers, amp, and possibly even HU

Tobeit · 03-19-2008, 04:56 PM

Quote:

Originally Posted by sparky472

yeah, I have the bass levels where I want and the fader where I want. I hear what you're saying about the sound coming from the front, but I think that given the positioning of the speakers in a car, it just doesn't sound right to my ear as it is.

In the JBL setup, the front door speakers are woofers only for bass. So, yes, I would expect bass to come from their. The mid sit in the dash and the mix between both should make your sound right. The back are full frequency 2 way with a woofer and a tweeter.

sparky472 · 03-19-2008, 09:21 PM

Right, that I got. So what I am trying to figure out is, can I replace the woofers in the door with a full range speaker? I.e., does the signal that the amplifier sends to the woofers in the door a full-range signal and the speaker itself filters out the mid and high frequencies? Or does it send only the bass frequencies to the speaker?

bigloubumpin · 03-19-2008, 11:53 PM

They're considered mids,tweets on the dash.Each speaker running at 4ohms.

touringcamry · 03-19-2008, 11:59 PM

Doesn't the JBL system run 2 ohm drivers? I know in the Gen 5 they did.

To answer the question, yes it is possible to replace the stock speakers with a 6.5 component set, preferred, or a set of coaxials. I have a 6.5" components in the doors, both the mid and the tweeter, and it does not sound like it's coming from the sides. More than anything else, it sounds like the music is coming from the rev-counter and speedometer area. Without time alignment it sounds like it's coming from the radio itself. I have an aftermarket system though, including radio and an amp.

DSPs can be used with stock radios but it's usually to add an amp; not for use with stock systems.

bigloubumpin · 03-20-2008, 12:14 AM

I scoured through the repair manual,the schematic stated they're running @ 4ohms(each speaker)

azngotskills · 03-20-2008, 12:15 AM

Quote:

Originally Posted by touringcamry

DSPs can be used with stock radios but it's usually to add an amp; not for use with stock systems.

Im sorry but DSPs can be used with either OEM or aftermarket, a prime example is the Rockford Fosgate 3sixty.1 or 3sixty.2 or the Audiocontrol units

DSP (digital signal processor) is used to alter the original frequency response in terms of equalization, time alignment, crossover points, and level matching

Tobeit · 03-20-2008, 12:31 AM

Quote:

Originally Posted by bigloubumpin

I scoured through the repair manual,the schematic stated they're running @ 4ohms(each speaker)

...you sure you looked under the JBL setup

bigloubumpin · 03-20-2008, 12:35 AM

I belive it was non-JBL but seems like I can't access the manual.No one is hosting it?

ebumdude · 03-20-2008, 12:41 AM

nobody can host it for very long. every time someone does, it lasts for about a week or so, then gets cut off.

Copyright issues and legal garb.

Some of us were lucky to download it when we had the chance.

Tobeit · 03-20-2008, 12:45 AM

Quote:

Originally Posted by bigloubumpin

I belive it was non-JBL but seems like I can't access the manual.No one is hosting it?

From what I know the JBL-amped system runs on 2Ohm (but don't have a manual in hand...), the standard, non-amp version might run on conventional 4Ohm.

avholic or some other, better experts might be able to confirm