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hey all, first i wanna thnak everyone that helped me with all that crap getting this thing werking!!

now i have another question, i need help setting the xover and slope and stuff for my car's speakers, i have all factory stuff (for now.. i know, i know...) but i am afraid of blowing something by nothaving the right frequencies goin to the right speakers...

anyone with this HU please give me suggestions and/or tell me how yers is set up, plus looking for help on how to use the time correction and stuff from the Alpine1.com website...

 
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Aren't all the slope controls and such only for the pre-outs?

If so then you can't do a thing with them and affect any of the stock speakers.

Thats a rather intense deck for having an all stock system.

 
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hey you know what i dont know!!!!!

i thought it was for the whole deck, not just for the pre-outs.....

 
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I know somebody who is getting that deck installed in his car tomorrow, he has a seperate amp for a pair of subs but for the next few weeks he's going to use the deck to power his stock speakers, i'm assuming the eq crossover settings would work for the decks internal amplification, i'll know more tomorrow though i guess.

 
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cool, thanks Tom1178 !!

please let me know what he says.....

 
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Hey Shadow,

I was speaking to the Alpine dealer about the 9815 cause Im looking at buying one myself. The crossover points on the setup control both the amplified speakers out and the pre-out controls

I am already planning the frequency setups on my car which has factory speakers and a sub. If you are crossing over the speakers you want to pick a frequency and slope that matches the sub setup. If you had a 12 sub at 12db to 50Hz you would want things to be close to that on the deck otherwise you risk having some of the sound not beeing reproduced.

In case no one explained it to you, the slope on the crossover is the rate at which unwanted frequencies are removed. 6Db means that if you doubled the frequency (1 octave) the volume would be 1/4 as loud. 12 Db means 1/16th, 18db 1/64th and so forth. We hear sound on a log scale which means that 1/64th as loud doesnt mean we wont hear it at all...its just quieter.

As a starting point I would look to set the front speakers around 100 Hz and the rear closer to 60-70. Set a slope of about 12dB and that should reduce some of the bass but protect the speakers from bottoming out too much if you're not using a sub to add bass.

I would also look to the dealer you bought the deck from for some setup help. They may have an RTA (measures the sound from low to high) which you can use balance the system. At least they should explain to you how to setup the features and give you some help with it. Although I havnt bought mine yet, the dealer said he will spend about an hour setting it up with me if I want

 
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holy crap, i didnt realize it was so involved!!!
i appreciate the time you tok to reply to me, thanks. i'm gonna try and get it done myself, the place i got it from was through a friend and i got a really great price, took the guy like 5 weeks to get one for me so i dont wanna bother him again lol, anyway, let me take in what you wrote, let me know how yers goes, thanks again!

 
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My friend just got his alpine installed so i can come back and answer your question....the post above already did though.

Only problem my friend has now is that he's still running stock speakers but he hooked up an amp and subs so now all he hears is bass, and if he turns up his radio to hear the music all he hears is distortion......he was planning on waiting a month or so to buy new components, but i think he's going to getting them much much much sooner

 
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Sounds like he need to do some major tuning.

The gain on the amp will match the highs to the sub.

Likewise the HPF and things will help make it so the highs will be able to go louder.