View Full Version : Alpine CDA-9847 - Why cant I tell differences in HPF?

11-28-2008, 03:49 PM
They go from..
Bass 60-80-100-115 (something like that)
treble 7.5 - 10- 12.5- 15

But i cant tell the difference...

And what determines what to set the width/narrow of the bass too?

04-13-2009, 08:29 PM
bump, what does the treble settings mean? such as 10k 12.5k 15k

04-13-2009, 08:53 PM
10khz, 12.5khz, 15khz

04-13-2009, 08:57 PM
those numbers are the frequencies of the bass and treble boost. there should be selectable numbers from 0 to 4 for the width of the bass control, if i remember correctly. it's been a few years since i've had one of those alpines. if you hold the button that gets you into the bass and treble control, there's a couple more controls for the bass. again, it's been a while for me with that unit, so i don't exactly remember, but hopefully this helps you out a little.

04-13-2009, 08:58 PM
also, those are not high pass filters. just treble and bass boosts. a 2 band parametric eq. that's it.