that's what i told my dumb ass friend who insisted the sub HAS to be faced near the rear or it sounds like shit. i said each car was different and that he was a faggot (i've been spending too much time with this b!t<# someone back me up here so i can send him your reply and prove im right!
ps he drives a honda civic HB, (well he did till he crashed it)
proves what he knows huh
Originally posted by xt_out tHE GUYS AT PHOENIX GOld say generally facing backwards is more SP while facing them frontwards is more SQ and facing them up is in between
You can face it any way you want but the closer the cone is to the rear of the car the better.It hits harder this way because of less cancellation. Same thing in a house. You don't put your sub in the middle of the room because it has nothing to reflect off of and several cancellation frequencies. If you put the sub right behind the back seat of a car it sends a wave forward and backward and when they meet back in the middle they cancel. This would be like putting it in the middle of a room. If you put it 6" from the rear of your trunk the wave immediately reflects and forms one main standing wave from trunk wall to firewall. I didn't graph the exact differences when I moved my sub but I gained nearly 5 db peak from flipping my sub to rear facing.
Originally posted by sfhellwig You can face it any way you want but the closer the cone is to the rear of the car the better.It hits harder this way because of less cancellation. Same thing in a house. You don't put your sub in the middle of the room because it has nothing to reflect off of and several cancellation frequencies. If you put the sub right behind the back seat of a car it sends a wave forward and backward and when they meet back in the middle they cancel. This would be like putting it in the middle of a room. If you put it 6" from the rear of your trunk the wave immediately reflects and forms one main standing wave from trunk wall to firewall. I didn't graph the exact differences when I moved my sub but I gained nearly 5 db peak from flipping my sub to rear facing.
damn that sux....i have mine facing rear with about 2 feet to the end of the trunk.....but it would look like crap if i flipped it to show all the wires and such.
i dont know if this is true, they say bass is multi-directional? so whichever you face your sub, bass will be heard just like playing drums in the jungle.
o BTW my ride has a SQ set-up and my sub is facing towards the trunk.
Having room between the subs and the back of the trunk is not entirely bad. I am trying to find the web site that finally made me understand. Had great illustrations and put sub alignments into 4 categories.
1. Front facing, front of trunk
2. Rear facing, front of trunk
3. Front facing, rear of trunk
4. Rear facing, rear of trunk
1 is worst, 4 is best. 2 & 3 can be the same pending size of your trunk/box. Plus every car has unique characteristics.
As for unidirectional, yes bass is. But that can actually cause more cancellation. Since the wave moves out in all directions it will reflect off of every wall. Every pair of walls that are semi prallel will create a cancellation or reinforcement. Moving the sub in relation to walls can have drastic differences on cancellation frequencies both for the good an the bad. Some cars happened to be shaped well, others not. I have seen reference to Accords and Thunderbirds simply "swallowing" the bass up regardless of how the sub was placed.
sfhellwig - How is #1 bad? Is it bad for SQ or SPL? Those are 2 very different things, and you have to position the sub differently for each of them. You can't just say something is bad or good, it all depends on what the person is looking for out of their bass
Your right, I guess I don't think in those terms as I shoot for middle of the road on SQ/SPL. #1 would probably be better for SQ as long as you have enough power. The bass is very transient and clean with very deep extension. I just wasn't as loud as I thought it should be. #4 is defenitly good for SPL but can also be the best for SQ. My sub seemed to loose a little extension but the bass drum in ALL music came up and is very punchy. Bass music is still good but I can tell I hit harder over a wider frequency range. This will be different for every car. I liked the sound of position #1 for my car but it was plagued with alot of cancellation. YMMV in that your car may sound better for a certain application with #2 or 3. If you are planning a very involved box I would suggest building a simple box first. Get an SPL meter and a test disk and plot all 4 positions. Then plan your build. Your SQ/SPL requirements and likings may be very different from mine.
ah that's much better, I think I'll try #1 at first, and if it isn't loud enough then I'll start moving it around. I'm going to have a single 12 with ~900watts going to it, so I think it should be loud enough, but we'll see.
(i've been spending too much time with this b!t<# someone back me up here so i can send him your reply and prove im right! 
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