Frequently Asked Car Audio Questions - Page 3 - Audio & Electronics Forum

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Re: Frequently Asked Car Audio Questions
Friday, April 25, 2008 10:47 AM
Subs, should I aim them forwards or backwards?

If you don't plan on sealing your trunk off from the rest of the cab, face them back towards the trunk. That will get your best results. 6 inches from the trunk lid is the sweet spot.

If you want to go all out baller like some of the guys on here, face subs forward, seal up the back deck and around the sides of the box. Much more spl, no destructive waves.

But Jeffrey, what about your box? You have subs up and port back?

I do indeed, and I have destructive waves when I have the windows all up. With the windows down, the waves aren't bouncing off of each other. Plus my trunk rattles like no other. My best choice now is to wall it.

Jeffrey, I see guys with spare tire enclosures. How do they sound?

Depends. I'm going to pick on Sec-Z for a bit. He used a fiberglass mold of his spare tire well, and has his angled back. Wise choice. Minetti has his straight up, however, he has a special enclosure. He's far enough away from the trunk for rattling




Re: Frequently Asked Car Audio Questions
Monday, March 02, 2009 2:19 PM
But Jeffery what if I point the subs and port up?



Re: Frequently Asked Car Audio Questions
Saturday, March 07, 2009 9:45 PM
You are going to have some nasty rattle AND cancellation. The Jeffrey says definitely not.



Re: Frequently Asked Car Audio Questions
Sunday, March 08, 2009 8:34 PM
I figured so Jefferey. Just wanted to clarify.





Edited 1 time(s). Last edited Sunday, March 08, 2009 8:36 PM


Re: Frequently Asked Car Audio Questions
Monday, March 09, 2009 8:13 AM
That looks just like me - porkchop sideburns and all.



Re: Frequently Asked Car Audio Questions
Thursday, March 12, 2009 8:52 PM
Just looking through my old post on my box and maybe a nice little section on enclosure tuning. Just to clear up stuff for people designing ported boxes. If you would like. Thanks Jeffrey.



Re: Frequently Asked Car Audio Questions
Tuesday, March 31, 2009 9:38 AM
Sure. 20's and very low 30's are good for home theater and some ground pounding. They're a flat response. Mid 30's are good for daily, a nice peak and slow roll-off around the tuning frequency. Anything above 39 is getting into an spl tune, which sounds like crap on music, but peaks where you want. Our cars peak at 47ish hertz, so a tune around 45 or so is the money shot for an SPL build for a 3rd gen car.



Re: Frequently Asked Car Audio Questions
Tuesday, March 31, 2009 8:35 PM
Cause I dont feel like starting a new thread an maybe this will help someone else out.

My amp has 18 db bass boost at 45 hz now wouldnt I want to use a 45 hz test tone to set gain rather than a 50 hz? Since I set my gain with a 50 hz, I would be clipping a 45 hz tone right? Because my amp output would go up for a 45 hz tone. Therefore clipping said signal.

I cant test for sure because I lack an osciliscope. But I have noticed some clipping on Airforces which is a 45 hz song.



Re: Frequently Asked Car Audio Questions
Wednesday, April 01, 2009 9:45 AM
Actually, no. Use a 60 hertz test tone and you'll be golden. I also wouldn't touch the bass boost.

Are you sure the song itself is clipped?



Re: Frequently Asked Car Audio Questions
Thursday, April 02, 2009 8:20 AM
Its not its off his CD. If I dont use the boost I have no response in my bass. Its just really flat. Probably from my tune.



Re: Frequently Asked Car Audio Questions
Saturday, April 25, 2009 12:02 PM
with the preimium stereo/upgraded are just the rear speakers on the amp ??? i unpluged my factory amp and the fronts still work but the rears didnt . could i use those C clip splicers and just run wires to the aftermarket speakers and leave the stock amp unpluged? how well will the stock radio handle aftermarket speakers. im completly new to this kinda thing on this car. my ford Escorts were easyer to hook up then this thing is


ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500



Re: Frequently Asked Car Audio Questions
Tuesday, April 28, 2009 12:51 PM
Premium amps the rear speakers. Monsoon amps front and rear.



Re: Frequently Asked Car Audio Questions
Tuesday, April 28, 2009 1:53 PM
how much can the stock radio dish out for aftermarket speakers till it gets fried


ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500


Re: Frequently Asked Car Audio Questions
Tuesday, April 28, 2009 2:13 PM
7W rms



Re: Frequently Asked Car Audio Questions
Tuesday, April 28, 2009 3:28 PM
Fail for the 7 watt stock radio


ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500


Re: Frequently Asked Car Audio Questions
Thursday, May 07, 2009 9:14 AM
So I'm going to add another little helpful tip. Do you have wires to run but can't get them fed through a rubber grommet? Well get yourself a piece of 3/8 brake line, cut the ends off, feed the wire into it, and voila, no more wrestling with the wire.



Re: Frequently Asked Car Audio Questions
Thursday, May 07, 2009 9:21 AM
coat hanger



Re: Frequently Asked Car Audio Questions
Thursday, May 07, 2009 11:09 AM
Stephen wrote:

coat hanger


maybe in our cavaliers with their lovely floppy grommets, but when you get into stiffer grommets (ie: Ford) the brake line is really nice. Mac tools sells what is basically a 3/8" screwdriver with a hollow tube right through it, same idea.



Re: Frequently Asked Car Audio Questions
Monday, June 01, 2009 3:24 PM
how do you ground these stupid ass cars for radios ???


ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500


Re: Frequently Asked Car Audio Questions
Tuesday, June 02, 2009 9:11 AM
Well, there's a stupid ass ground in the radio harness, and there's a stupid ass heating duct with a few screws that is metal right below the radio, or you could even get fancy and run a stupid ass wire to the stupid ass battery for a stupid ass ground



Re: Frequently Asked Car Audio Questions
Tuesday, June 02, 2009 1:49 PM
thanks man . youve helped me nicely. disreguard that last statement


ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500



Re: Frequently Asked Car Audio Questions
Wednesday, June 03, 2009 12:01 PM
No sweat brother. That's what I'm here for.



Re: Frequently Asked Car Audio Questions
Wednesday, June 03, 2009 2:50 PM
good. im sure ill have questions for you later on as i tend to upgrade to 2 12's and a bigger amp


ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500


Re: Frequently Asked Car Audio Questions
Thursday, October 08, 2009 11:48 AM
so whatis the best frequsy to tune a box at facing forward in a 3rd gen. you said 47ish is the sweet spot so should i tune it to that or a lil lower/higher to get it
Re: Frequently Asked Car Audio Questions
Sunday, October 11, 2009 7:32 PM
Depends you going for SPL or daily?



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