Need help tuning new components plz.

[up2me 10+ year member]

I have a set of pioneer 720prs components. I have a old school ppi pc2100 running them at 4ohms. I have them running off the crossovers provided in the set. i have a couple of questions, and would really appreciate the help. My first problem is that my speaker sounds like it it bottoming out sometimes, this happens mostly on rap and hip hop songs. The midbass is steller with all other songs, classic rock etc. I can watch the mid really excurt out to when this happens.

Most people are saying they can run 150w rms to these components with no problem. My ppi is rated at 100w rms and is only a little past halfway up. I feel like my speakers are going to blow when this happens. Sound gets muddy and fludders.

The words never distort that i can tell when this happens. The sound it tight and snappy on all other notes. I have a alpine 7897 hu and i tried to set the crossovers and eq on the hu and it did not do anything for the problem. It seems like if the speakers can not play this low why are the crossovers letting them? So my second question is anyone familiar with this hu and can tell me how to set the crossovers so this wont happen? By the way my doors are matted really well. Thanks for all the help. Sorry to run on and on but i am puzzled

Click to read more...

 

[Immacomputer 10+ year member]

I'm not sure about the headunit but where are the crossovers set at currently? Maybe you should bypass the headunit crossovers and use the amp's crossovers. That amp has some pretty nice crossovers on it. I suggest playing some tones and see where it bottoms out and then adjust your crossovers while playing that tone (obviously not at the volume levels where it's bottoming out) and get them set to where the speakers seem to handle the tone better. That should help.

For a general setting, a 12dB slope at 80hz or so should keep things from bottoming out and should give you decent midbass.

 

[up2me 10+ year member]

Ok i didnt know if i should play with the crossovers on the amp or not. i thought that i should just let the passives do the work. Also on the amp the crossovers are just some buttons with general settings. I got the owners manual out and it dont really tell you much about it. I tried the 80hz on my hu and it didnt seem to work. I guess i am still kinda lost and will see if i can find anyone with some knowledge on hu. Thanks for the help. Any opinions on the power issue, am i giving them to much or not enough.

 

[Racerx250 10+ year member]

maybe the amp is clipping? I'm not a genius at this but that may be it?