Added an amp, now the beeps are louder...

Also, if the fix does involve some sort of frequency cut-off adjustment at the amp, does doing so impede the user's ability to fine tune what signals the amp sends different types of speakers (subwoofers, tweeters)?

 

Yes, I've been thinking about where the beeps originate both to remedy the adding an amp induced beep volume increase and to also possiblysolve the 12v amp on problem by using that PAC-OEM2 speaker level to low-level converter that can generate itss own 12v on for the amp upon sensing a signal coming through the speaker wire.

That solution won't work if the beeps cause the PAC to send an amp turn on signal every time the touchscreen is used (beep generated mistaken for radio audio). Wishfully thought there might be a spot on the speaker wire it could tap into upstream of the point beeps occur on the speaker wire.

All moot if the radios's unused 9(I) is live, assuming the wiring harness will accept an upgrade.

 

Bobc has informed me that the beeps only come from the front speakers. That being the case, here's what I thought of as a possible low tech "last resort" solution.

How about hooking up the front speakers to the wires leading out of the radio meant for the rear speakers, and vice-versa? The beeps would then come out the rear speakers instead and even though still louder than they should be, location and type of rear speakers would to a large degree nullify the difference, at least as to the hearing of those in the front seats?

Am I not correct that the front / rear signals are identical at the time they leave the head unit? (Crossover frequency cutoff doesn't occur until after the signal enters the front doors?)

Of course when using fader control you'd have to do the reverse of what's indicated on the screen but that's a tradeoff I for one would be happy to live with.

Of course hopefully there's a better solution.

 

If you don't care about the beeps and are willing to give up the fader, you can wire the rear output to a four channel Amp that connects to all four speakers. You'll still have the balance, bass, and treble control, but no fader and no beeps...

Nate

 

It does seem the beeps only come out the front speakers. I'd prefer to keep the fader, even at a cost of having increased volume beeps, but coming out the back.

Can anyone who has the problem with the increased beeps offer conjecture on how bad they'd still be if switched from coming out only in the front to coming out only from the rear? Keeping in mind much of the current annoyance is due to the beeps so pronounced out of the high mounted front tweeters.

 

Beeps are sent to ALL speakers on the JBL system, front and rear. Even the woofers in the front doors get the beeps (can be heard if you hook a tweeter to those wires).

Maybe I'll abandon my Amp plans and just get the subwoofer going...

Nate

 

I have the standard non-JBL audio. It was a short test so I'll check it again but I didn't hear any beeps out of the rear speakers. Does it make sense to anyone that the JBL would have beeps out all the speakers but the standard's beeps would just be out the fronts?

Of course JBL already has an amp so no need to worry about increase in beeps when an amp is added unless it's for a subwoofer?

 

Yes it could make sense, if the beeps are generated by the header. In the standard system, the amp is in the header so the tone generator could be sent to only the front speakers. By the way, the front tweeters are connected to the same header output as the front fullrange speakers.

In the JBL system, the amp gets fixed level R&L signal, so if the header was generating the beep, the amp would have no choice but to send that audio the same way it sends any other audio: to all speakers based on the balance, fade, EQ.

I was about to say that the volume was also controlled by the amp, but it is possible that the header does that by sending less signal to the R&L outputs. Something to investigate.

 

I'm going to play with the RSA (Rear Seat Audio) outputs to see if they are fixed or if they have the beeps. I'll also check the Amplifiers' input to see if it is fixed.

Nate