Alpine cda 137bti + pxa h100 bass problem

[bego]

Hi guys. I have some really strange problem with my HU and sound processor... for almost 3 years a have had a alpine 9886r + h100 and worked like a charm until I decided to buy another headunit with bluetooth. It was just plug and play, only thing i did is switched the three switches to Ext. Tweeters and mids work fine but woofer doesnt, its quiter and sounds strange, not so punchy like before. I did everything, every possible option in that damn 137bti but nothing helps, whell when i say it doesnt help, media expender works but not the sound i like and still quiter. I was browsing and reading the h100 and 137bti manuels but i didnt find anything. does anybody have an idea what is wrong with this thing. I tried to put my old 9886r back and ofcourse it works like it should.
 

 

thanks.

[CrackFactory]

In my opinion the alpines subwoofer output is lacking in voltage, or something idk. I always have to set the subwoofer to +10 in the deck to get decent output.

[bego]

19 hours ago, CrackFactory said:

In my opinion the alpines subwoofer output is lacking in voltage, or something idk. I always have to set the subwoofer to +10 in the deck to get decent output.

I had a few of them, never had a problem with that.

[Mike4068]

21 hours ago, CrackFactory said:

In my opinion the alpines subwoofer output is lacking in voltage, or something idk. I always have to set the subwoofer to +10 in the deck to get decent output.

This. Sub output on hu needs to be max to get the full pre out on the sub channel. 

[bego]

On 9/27/2019 at 7:55 PM, Mike4068 said:

This. Sub output on hu needs to be max to get the full pre out on the sub channel. 

it is at its max output.