Question about newer head unit guts/signal handling

jol50 · 20th May 2009, 06:33 PM

Is there a way to get a signal out of these newer HU with DSP and all? Preferably pre xover and processing but volume controlled? I have no idea how the signal is handled inside, particular one I have is a PRS880 Pioneer.

Perry Babin · 21st May 2009, 12:19 AM

DEH-P880PRS?

If so, the volume control/source selector IC is the last IC in the signal chain. It appears that all processing except for volume control is done before this IC.

jol50 · 21st May 2009, 08:02 PM

So the whole thing would have to be capable of handling two more channels...very doubtful. I have heard you can pull two channels direct from the CD player, but not what I want. Also investigated running xover'ed channels back to a full range but appears you can't do that well either plus if it has T/A that is no good. Thanks anyway I tried.

20th May 2009, 06:33 PM	#1
jol50 diyAudio Member Join Date: Nov 2007	Question about newer head unit guts/signal handling Is there a way to get a signal out of these newer HU with DSP and all? Preferably pre xover and processing but volume controlled? I have no idea how the signal is handled inside, particular one I have is a PRS880 Pioneer.

21st May 2009, 12:19 AM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	DEH-P880PRS? If so, the volume control/source selector IC is the last IC in the signal chain. It appears that all processing except for volume control is done before this IC. __________________ Basic Car Audio Amp Repair Basic Car Audio Electronics Basic Transistor Testing

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21st May 2009, 08:02 PM	#3
jol50 diyAudio Member Join Date: Nov 2007	So the whole thing would have to be capable of handling two more channels...very doubtful. I have heard you can pull two channels direct from the CD player, but not what I want. Also investigated running xover'ed channels back to a full range but appears you can't do that well either plus if it has T/A that is no good. Thanks anyway I tried.

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