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Discussion Starter · #1 ·
I have a 89 escort gt , i have 2 audiobahns that are just Bass subs, no voice coils. They are in a ported bandpass box. How should i put them? Facing the hatchback? facing the winshield or facin up ? I am only going to be pushin 250watts into them , they handle 700 watts each. i have a audiobahn 500 watt amp 2 channel. what do you think is best for me to do , to get best bass out of it? also, the speakers i have in my car are stock, I heard i am going to need some voice speakers because i will have the subs doin all my bass, so what do ya call the speakers iwill need for thedoors n in the back next to the subs? highs lows or what, im not that smart when it comes to audio stuff. I dont want my shit sound to gay, just hearin the bass n no voice. lol help plz. thanks peace :p
 

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face them towards the rear of the car.
the farther sound waves have to travel, the wider/bigger they get. so, the waves will hit the back of your car, and reverberate back to the front louder than they would be if the subs were facing forwards. that, and it blasts out whoever is behind you at a red light.
safe choice: face the rear.. ;)
 

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I thought that only worked for hatchbacks? cause my Si has a sealed trunk and when it faced backwards i could barely hear the bass, so i put it forward and it seems a bit more crisp now...even with the seat up.
 

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wow...alright here we go on a trip to the art of porting. 1.) you shouldnt have bought that bandpass box, its cool to tide you over, but if they are 'bass' subs then why constrain them. Build them the biggest box they need, and youll have a choice. 2.) AEROport.

For these to be effective, make them face the rear. Leave about 4-7" of clearance from your box to the rear of your car. But also you could build what DV calls the 'kash' box. Build the box as big as the cars hatch and vent it up. Ok but on to your question, face the ports to the rear, for most sound. Now for the 'interiors'. Here are basically your two options. Three ways or components. And for the best sound and reliablity dont crank your amp. I do SPL competitions with my 89 lx soon (actually later today) im going to do the clutch. But anyways set your bass all the way down, and if you have a sub control on your HU then turn that down. And turn the highs up. Basically by putting in threeways the setup is perfect. With components, the high is supposed to be within one wavelength the mid. Good luck and any more questions i could try to help you with.
 

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Discussion Starter · #5 ·
a kash box? Do you have a link on how to build them and materials needed? My bandpass box fits TIGHT in the hatchback right now(side to side up against the side of the car i am talkin about) But there is like 4 inches or a little more from the rear Its just to hold me over for now. Thanks for the information. Now for the amplifer, i am not crankin it up all the way, its 500 watt audiobahn amplifer, but i am only runnin 125 watts into each sub. so i will have 250 watts free, so i dont blow the amp n etc. They bump pretty good. I know its not alot of watts, but they hit pretty damn good. I heard its not really about the wattage its about the quality of the subs n amp n watts to sub ratio or something? I dont know, i hope u understand what i mean, if i am wrong please correct me. Thanks
 

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Discussion Starter · #6 ·
James92Scort said:
I thought that only worked for hatchbacks? cause my Si has a sealed trunk and when it faced backwards i could barely hear the bass, so i put it forward and it seems a bit more crisp now...even with the seat up.
Well the person who was talkin about the sound traveling to the rear n then hits to the front, was talkin about for the hatchback. in a sealed trunk ya dont get that much air and the back of ya seats or anything ya got in ya truck is prolly absorbing sound waves. so therefore ya dont make it face rear in a sealed trunk. thats what i think, i am not sure.
 

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Discussion Starter · #11 ·
im learnin how to drive it now, the escort. its 5 speed, never drove a stick before. Im doing pretty good, burnin out alot though, gotta ease off the gas a little more n i will get it. It moves pretty damn good compared to my cuzzins 89 escort lx. Does the 1.9 efi HO engine have like 20 more horsepower or something? because he has a standard to and the HO has more power n moves quicker.
 

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Its all about resonance and wavelength. In the hatchbacks, they generally tend to sound better with subs pointing toward the rear of the car. Sedans can do ok with the subs firing toward the rear as well, so long as you have the rear deck vented into the trunk.

I think the answer to your question depends on the type of sound you are after. If your a true audiophile, then a sealed enclosure may perform the best for you. If you simply want the most volume from your subwoofer, although it may not be very accurate, a bandpass or vented enclosure may suit you well.

For the SPL sedans Ive done in the past, Ive done many Fourth Order, Quasi-matrix enclosures that are vented through the rear deck into the passenger compartment. There are no vents into the trunk with this enclosure. I have done SImple Fourth-order enclosures that are also vented into the cab, or not. It depends on the speakers, the enclosure, the car and the media.

Your best bet? move it around in your car and try it in different ways. Thats the only way you can tell what sounds best. Ive owned subs that sounded best firing toward the floor and some that sounded better firing toward the rear of the car. Good luck.
 

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well jim is right, but im just starting my second season of SPL, our team Deep Vibrations made a 2001 neon 3rd in the world (proof is here http://www.soundoff.org/03finalsres.htm look for super mod 0-1000 Steve Nelson 155.0 thats with two of the subs i have in a wall. As of this moment i have a Clif Design 15" Comp. sub. and a picture of the kashs box is here.

also im going on past experience and things i learned from our sponsored team leader the grey neon that says Diamond Audio technologies

but jim is right placement is all itll take. And btw if anyone is wondering that is a SOLOX18 and has roughly 7000 watts going to it while on the street.
 
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