Alpine Head Units, HPF, and subwoofer output

 

Anonymous
 
I have a quick straightforward question that I'm hoping someone can help me with. I am looking at an Alpine CDA-9831. It was a HPF/LPF available from the menu. I want to use the HPF to filter the bass from my main speakers, but does the HPF also cut the low frequencies from the subwoofer pre-out?
 

Bronze Member
Username: Kklagge

Post Number: 70
Registered: Dec-04
Yes it does! Either use the Xover on your amp(s) to set your cutoff frequencies or set BOTH of the HPF/LPF setting in the 9831 to 80Hz and you will be fine.
I have the same unit and I have my HPF/LPF turned off and use the amp (which sounds better to me as I've done it both ways).
 

Bronze Member
Username: Suleman36

Post Number: 52
Registered: Feb-05
thats good info and advice. I had the same issue with mine> I have mine set like this. I have the hpf at 80hz and the lpf at 120hz but i think 80 sounded better..so for the lpf 80 hz is better.
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