SPL & SQ / Fabrication

If i where planning on useing external ports for my SPL set up (probably a pair of 6") to decrease cancelation and turbulance would it still be a good idea toconjure up some type of brace for the port? i would assume so but im not 100% sure. Keep in mind i want to easily be able to change the length of the port not only for trial and error testing to get the highest score but also so i can give it a daily tuning for the ride too and from the competitions and so i dont have to lug the Ava out of and into my truck every other weekend.

Anyone know where I can look at pics of pods? I'm having some started today for my jeep. I'm not building them myself. Is there anything I need to be aware of or tell the person making them? I don't know jack about them. I'm installing my Kicker RS6.5 component set in there. I'll probably mount the tweeter in the co-ax. Any comments, opinions? Me competiting in db drag street class means I can't have anything large or alot of glass on my door.

alright i have a 2001 honda accord coupe, and am looking into buying a new ride. im not sure whether to be looking into another trunk installation, SUV, or hatch. I have a diamond audio d915d2, a us amps AX1000de amp, alphasonik components with a us amp merlin md41 powering them. i am looking for basically a realiable wehicle that will be the best for a LSQ system. looking to pay around $20k or less, or if i should stick with the car i have now. dont have an enclosure yet, but will build for respective car. (if keeping the accord i will be making a fiberglass corner enclosure), and i may also be doing this for any other car i may purchase. something sporty, and that…

Forgot I uploaded these to photobucket Quite the challenge considering it's a crackerbox tracker, that's a manual, and I wear a size 15 shoe. I'll get some more pics when I get back home.

Ok we are in the works of having a show at the end of march or early april. depending on the weather... This time we will have 2 meters. head to head competition to see whose louder. We also plan to have an sq portion to the competition for all the sq heads out there. How many would be interested??? We are talking about having one every month in the spring and summer months. maybe some nspl and iasca shows we need feed back!

just starting to figure these enclosures out a little. any one got any info.

as of right now i am sound dampening, already heavily dynomated but not enough for me personally. so i am covering the interior with mdf and foaming between the mdf and all metal. the back wall will be about 3"soild, needless to say i want solid. i am going to have the subs facing up behind the two front seats, i have 12.9 cu ft gross and 10.77 net cu ft of space to work with. the box will be constructed from 1.5" mdf and internally braced with 5/8" all thread. the plan is to have an interchangable port set-up for SQ and SPL for compitition. if anyone has any ideas i would like to hear them, this is the first time i have ever used soundsplinter subs. my last sub i ha…

anyone in here ever deal with Digital Designs or have a few M1 amps layin around?

Okily dokily, in the middle of building my kicks. Was thinking of ways to deaden them. Got to thinking about the idea behind using mat's and such. Correct me if I'm wrong here, but isn't the idea behind them to add enough mass so that the offending resonations are either stopped. or moved out of the audible range. With this in mind, I got to thinking of best ways to add mass and came up with an idea. I have a rather large stash of lead shot ( used to reload shells for my dad ) . Any thoughts on coating the inside of the kicks with an epoxy lead shot mix ? Seems like it would work. Any input would greatly be appreciated.

Who's Going,? im not, ill be in Key West, but if there is enough interst in the people who are we can have an SSA meet prior to SBN. Kickin', i know you are going, stop by my house on your way so i can hear 150 Certified on TL.

i want to wall my lincoln but first i need to make sure i wont get a ticket if i do have a wall. any one who knows about that kind of stuff any help would be good.thanks in advance

Hi all, I'm designing a custom boot for my car, what is the best way to place 2 x 12" phase aliante subs in a boot? I was told the best place would be one on each side (one on left side and the other one on the other side). and I would love to do a fibreglass job something like this: but on my car would be 2 of them..so one on the left and the other on the the other side. what do you think? or is it better to do something like this (which one is better, sub firing the front of the car or the rear)?:

hey guys my friend has a cda-9855 that has a big green wire what does that do becouse it was cut when he got it will it work with out that wire thanks

i still dont understand how they work and what the diff is... you got these kind with a bunch of little wires and a crapload of windings and youve got these: with a little bit of windings and thicker wire. is one better than the other? i dont understand.

What would be considered too small for a round port (in terms of diameter)? I'm trying to design a ported box (0.7 ft^3 ~ 24hz) w/ round ports for an RL-I 8" and the only diameter port I can use w/ a reasonable length is less than 1.5"...won't this create noise? I just can't imagine using a 1" port for that monster... What's the rule of thumb y'all?

my friend has 2 15"s just sitting at his house and needs a box for em. he's got a 2000 s-10 blazer, and the cargo area is i believe only 36 or 37" wide between the wheel wells. any help on a design for this would be appreciated. we should be building it next weekend.

just wondering what you guys felt about attaching things like felt or sound foam, (seen a few designs on DIY like this) for SQ purposes, not SPL ofcourse, but for less vibraton and harmonics, etc...

whats up, I've had 6 systems in 4 cars, 2 of my cars were hatchback. I had 1 sedan with a sub in the trunk for a year and a half, at that time I was'nt trying to make my system louder, now in my present car I'm on my second system and I want to get louder. but the system is in the trunk. I know no matter what I do it wont be as loud as in a hatchback. Is it possible to make a spl vehicle in a sedan. Are spl numbers as high as 150 achieveable in a trunk? My system is fairly loud now,I hit 137.8 at a local shop with my old system. but that was with 880 watts rms to a 15. I was'nt to impressed cause some guys were hitting 5-10 db more, with nearly the same wattage. I hav…

On bandpass enclosures, specifically 4th order for the moment, but I will be messing with 6th order later. I am always re-reading the diysubwoofers page. If anyone can reccomend books, sites, etc.... it would be great. Also an general rules of thumb too.

I just bought 4 sheets of 40x55 at 1/8" thick(or something like that) of nuprene off of ebay for 40bucks. Supposedly its used in boeing airplanes and such. http://cgi.ebay.com/ebaymotors/ws/eBayISAP..._Pr4_PcY_BIN_IT Does anyone know anything about it? it's got to be worth over a buck a square foot so I'm not really worried about getting ripped off. Once I get it I'll let you guys know what I think, should work well in a car. but I doubt that dynamat used that statement the guy had in his ad. thanks, b

Bass race death match was awesome to, I'll get the video later. Anyway, I built for this thing and I won, it ended up with a 146.1 for a 5min average. It could have been higher but there was no need to turn it up (as you'll see i started at a 148 and backed it down) This was taken this past weekend in Augusta, GA at one of the db drag events. Car off, 5minutes, four loudest street cars at once! I started high, and then turned it down just above the guy next to me. The guy with crx got a late start, so he only did a 138(burps a 151), the guy in the red truck had 2 L510's and a Orion 1200D and held a 138 for the 5min. Not bad! It was a looong five minutes sitting inside …

Kinda sad. Been looking to get into competing but all the organizations I have looked @(dBDrag, USACi, IASCA, and MECA) don't have comps around the Indiana area. All are in Ohio and what not. I don't mind traveling a state or so but why no shows in IN?

There's a sanctioned USACI show about an hour and a half from here this weekend, thinking about entering in the "Consumer Q" class...anyone here have experiences with USACI SQ? I'm pretty sure the "Q" classes are just soundstage judging, no install, but I'm not sure. What are some things I should look out for so I don't get completely stomped? Thanks in advance.

Has anyone done one of these before ? I reciently picked up a eD e8a and I wanted to try it in one. I found a formula that seems fairly simple to follow. Build a box with 2 chambers, one at 3 cuft and the other one EXACTLY half of that, ie 1.5 cuft. Next cut 3 ports all IDENTICAL in length. Put one in the face of each chamber and the third in the wall separating the two chambers. In this instance each port would be either 12.5" long for a little deeper response or 8" long for a little more SPL. Now you have a box with a big chamber with a vent in it, a small chamber with a vent in it, and a third vent in the wall between the two. The woofer also mounts in the large chambe…

I think this is the right place to put this. Ok, I want loud, but not "boomy" bass. Is that possible??? I will be pushing my 2 RL-p 15's with an A2400DB Power Acoustik amp (1800w rms @1ohm). Would my best bet be to go with a sealed box?? Or should I go with a ported one?? I listen to hiphop, rock, and everything in between. I would like to have a good LSQ system. Any info you can give me would be great. Thx, Victor. B) P.S. this system is going into a s10 xcab. So the subs will be inside with me not in a trunk.