View Full Version : General Speaker Tuning Question

09-19-2007, 11:42 PM
Ok I just got an Alpine CDA-9855. I want to tune my 4 in car speakers so that they play everything but bass. I want only my 2 subwoofers in the trunk to play bass. The only audio settings this deck has is using an equalizer or crossover. I am lost as to the correct settings and the manual doesn't explain well. My question is what is a good hertz or dB to set my 4 in car speakers at so they don't play bass and my 2 subs at so they only play bass? My equipment is the following:

2 Front Speakers--Pioneer TS-A1781R, sensitivity is 91dB, frequency response--28Hz ~ 30kHz

2 Rear Speakers--Pioneer TS-A6871R, Sensitivity--90dB, Frequency Response 30Hz ~ 28kHz

2 Subwoofers--Not sure of all specs but they are Visoniks with a 500W max rating

Thanks way in advance for helping out!

09-20-2007, 12:08 AM
Use 2-way mode. Set the HPF for the front and rear (MID and HIGH on your HU) to about 90Hz, 12dB/octave, 0dB level. Set the LPF for the sub (LOW on your HU) to the same, 90Hz, 12dB/octave, 0dB level. You can adjust the settings up and down to tune the sound more to your liking, but that's a good starting point.

09-20-2007, 12:19 AM
Ok awesome, thanks for the quick input. One quick question you say 12dB/octave and then 0dB level, I don't get that? I didn't see a setting for octave just a equalizer tuner with an up and down scale of 0dB to -12dB and Hz settings from 80Hz to 200Hz

09-20-2007, 12:34 AM
I'm referring to the crossover, not equalizer.

09-20-2007, 12:39 AM
So am I tuning just the crossover and not touching the equalizer?

09-20-2007, 01:20 AM