Kapetol T
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Posts posted by Kapetol T
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will sealin it off from the rest of the trunk make a difference soundwise or just astetically? right now i just have it screwed down wit some space on each side
Both, It will keep your trunk from rattling too.
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Same cross-sectional area = same port velocity regardless of shape (within moderation......)
no, it dont.
going from a rectangular port, to a half rounded port is going to cause issues.
Thats like saying your port is 12 inches by 3 inches, then after the bend its 12 inches by 2 inches or 12 inches by 4 inches, its not the same, it will change your square inches of port, and make it very hard to tune to your desired freq.
I said if the cross-sectional area is the same.
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It really depends on your car.
If you can, point it forward and seal it off from the rest of the trunk.
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duct tape fixes anything
Even nuclear power plants..........
http://www.geekologie.com/2009/02/wait_wha...ar_grade_du.php
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weather striping
x2
Works great, good luck!
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I see it working fine, but it will be a lot of work.
Hopefully you have a pretty accurate way to calculate tuning.
My other concern would be the back port wall, how it is flat, I think this may not only make it hard to tune the box with a curved side and flat side port, but change port velocity
Same cross-sectional area = same port velocity regardless of shape (within moderation......)
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I wasn't asking about the kerf(sp)ing part. I was talking about the port 'extention' where it 'L's. I didn't want any cancelation/distortion.....
EDIT: And ya, I know... Its Pat in the flying white sausage project. Where I stole the idea
As long as both parts have the same area you are fine
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It really depends on a lot more than just being above 150
but the power really starts adding up when you get that high
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Question,..
Does it matter at all are far as getting the max spl out of a premade box...
buy a center vented box, ... or a box that has the vent on the front face still,.. but on the side...
ill use 2 subs also..
The words "max spl" and "premade box" should never be in the same sentence.
It all depends on your car, but shouldn't really make a difference.
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I guess thats one way to keep them from getting stolen.... hahahah
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So when i acquired my jl 12w7 my buddy had a box for it built so he gave me that with it when i traded him and i did the measurements out on it yesterday and i used the lxhxw / 1728 to get the cubes of the box and it came out to 2.4 in a sealed box, jl reccomends 1.375 after sub displacement am i losing alot by having such a big box cuz it sounds decent for still having 8 seats in a durango but would like to go louder as i plan to put a second 12w7 in by summer but for now i was just wondering if cutting the height on my box and resealing it closer to the jl reccomendation would help any. any input on this would be great seeing as im pretty much a noob to this. thx
Is this a sealed or ported box?
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$100 challenge you say
:D Seriously though, unless you have a good system to use, most people won't hear a difference. On my systems there is a very slight almost tape like hiss on bad recorded material. I can also hear a bad production job on some newer CD's
It also depends on the content of the music. Cymbals for example are greatly affected by MP3 compression. Otherwise most people wouldn't be able to tell the difference unless you are playing at very high volume levels with a nice system.
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The first one has the wattage, the second one isn't nearly enough, and the third has no specs.....
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Ok so i have a large commercial building that i keep all my offroad racing team/toys at... its a 6000 sq ft building, thats basically a huge square. i have a little lounge area that i was going to put some couches/tv/dvd player ect. we also like to rock out while were working on the cars.
i have a decent denon recieiver AVR-686 that i have and was going to use, i want to know what a good speaker choice would be. basically i was going to put a speaker in each corner of the building. being that it has concrete walls at the ceiling is about 18' tall i figured it could get real loud real easy/cheap.
any suggestions on some speakers that would fit my needs???
thanks!!
AG
I would recommend browse the plans on this site and join the forum to ask your question. The speakers are amazing, you won't be disappointed.
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This is pretty amazing.
http://www.opb.org/programs/ofg/videos/vie...ric-Drag-Racing
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Now I'm sitting here thinking about woofers and there excursion/power limits.
My 'theory' i think it is, is:
Brand A - 15" sub, 4" peak to peak excursion, 3" coil, wired at 1-ohm. Reaches peak excursion at 5K RMS
Brand B - 15" sub, 4" peak to peak excursion, 3" coil, wired at 1-ohm. Reaches peak excursion at only 500RMS
Now if brand A reaches its peak at 5kRMS and brand B at 500RMS. With basically the same specs, would they be just as loud as each other?? Or would more watts be dominate?? I would think that they would perform the same seeing as same specs/stats.
Can someone school me on this??
I'm not to experienced with the technical shit of woofers.
Well there is a lot more to consider, as others have said, about the speaker than just those facts. Both speakers will move the same air mass each at their respective power levels. The second one would have a much higher sensitivity rating.
But the other factors to consider are all the other Thiele-Small parameters of each speaker. These parameters will determine what box the speaker will perform best in. So each sub given its optimal box should, in theory, perform the same.
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Its called power-compression. As the coil gets hotter the impedance though the speaker increases. This impedance rise means your amp is putting out less power. You can lose over 3 dB from this effect.
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Okay, even I'm stumped on this one. What is with this new line of FI subs? It says "Infinite Baffle Only". What does that mean, that they can just be mounted anywhere & be as loud as a regular sub IN-box? Also, why are they so inexpensive?
https://ssl.perfora.net/www.ficaraudio.com/...view.shopscript
Well infinite baffle does not mean that they are not in a box. It would mean they are in a very very large box to mimic a true infinite baffle.
In the home you can just put it in the wall so one side is in another room.
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I don't care anymore
But she bitches constantly
I don't see why it would be a problem unless your computer is in the kitchen
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didnt think about those....
my only possible hesitation to this is...i do all this work, and im not as loud/louder than i was now...i would be pissed, lol...so thats why im kinda sceptical about cheaper lower end subs
Well what are you running now that you want to be louder than?
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by parallel u mean like bridged?? an if i bridge em its 1 ohm but if i do it normal it 2 ohms??
No bridging is linking 2 channels, parallel and serial are ways to hook subs up to just one channel.
Parallel is all positives are connected together, all negatives are connected, and each are connected to their respective input.
To get the total impendance you must take the inverse of your ohm loads and add them, then take the inverse again. (1/a + 1/b; if a and b are your two ohm loads, then take the inverse of that answer)
Serial is when you hook the positive end of one to the negative end of the other, so on and so forth.
You add to get the total impedance.
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sorry thought he said he had two t1ks
You should save up and get another t1000k and run 2 Fi Q's
In a nice big box the Q's will get very deep and sound great. They will get very loud too, not quite as loud as the BL's or BTL's but they will sound better and deeper.
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will one AudioQue AQ2200D be good for two bl 15's?
and will i need to change any of my electrical?
That would be just right for 2 BL's
As for your electrical, do the Big 3, and at least one extra deep cycle battery (yellow top, kinetik, powermaster)
Also, it would be a good idea to get a bigger alt but if you have enough batteries and don't play your music for hours straight, you should be fine with a stock alt, as long as it has decent amperage.
EDIT: Why are you going with the BL? Do you want SQ or SPL?
:D
Sub With Decent Sq
in Subwoofers / Enclosures
Posted
http://www.billfitzmaurice.com/autotuba.html
Great SQ, $35 drivers, and will get a lot louder than you would expect.