SPL & SQ / Fabrication

So I just got my SAZ-1200D and Diamond Audio TDX 10D4s wired up. The box I built is 2.5 ft^3 (after displacement), tuned to 33hz. Now the question is: If I build a larger box but keep the tuning freq the same, would the subs sound the same? Hit lower? This setup bangs for 2 10's in the 30-40 range, but doesn't quite hit the super lows that great.

If I can get enough interest I will be doing an IASCA judge training April 11th and 12th in Santa Rosa. I need to get judges up there before I can have a good amount of shows. If any of you are interested in attending a judge training in Santa Rosa please email me at [email protected]. The training is $100 for both days. It includes a full year of membership in IASCA (which is normally $60). Even if you just want to compete the judge training is a great way to get a full understanding of the IASCA rules. When you consider that you get the membership it boils down to $40 for 2 days of SQ instruction. Schedule is: April 11th 9am-5pm -IASCA philosophy -IASCA classes and …

My car audio team is holding a Car Audio competition in the town of Lodi. Here is the link http://www.team-bio.com/2nd_Annual_USACi_Sound_Off.htm This would be a nice little meet, for some people who want to come out and have a good ole' time. There will be a ton of cars, a ton of extremely nice cars, and its just alot of fun. Last year we held this event, we have around 50 cars. If you need any additional information let me, know Falout2guy __________________

For all you guys here in california, or wherever your are, come check out our comp. As of right now its a 2x weekend. With our comp on Saturday and another on Sunday in Woodland. Here is the info. Even if you do not want to compete come out anyways. Come chill... or compete its going to be alot of fun. Giveaways too!

We will be partaking in a new format this year. We have decided, after heavy heart, to drop the dB Drag format and proceed to the IASCA IdbL format. We still plan on hosting our normal 6 shows and possibly a 2x event. We are also thinking of hosting a couple night shows so that the people who have spent the money on neon will have a chance to show that off. Also we are perspectively hosting all events this year in conjunction with "Compact Evolution" which is the brainchild of Garrett Sweet. This would allow our shows to not only become stereo competition events, but car show events also. Of course, all shows will be held at The Colonial Village Fun Park again. He ha…

This is it, the last event of the year for Northern Music & Video and the 2nd of 3 stops in the "LOUDEST OF NY" events where the winner will be crowned in Oswego on October 2nd at the last Ultimate Edge show. Here is all of the event info: Northern Music & Video's Thunder in the Park *No SQ will be offered. IdbL only. *Event Location-Colonial Village Fun Park 578 SH 11B Potsdam, NY 13676. *Registration begins at 10am, show begins at NOON! *Registration fee-$15.00. *Offered classes:Stock 1-160, Stock 161-260, Stock 261+, Advanced 1-260NW, Advanced 261-360, Advanced 361+. *1st, 2nd, and 3rd place trophies for all offered classes. *Many giveaways!!!! *Be sure to ge…

Wow another successful event! A special thanks got out to all competitors it would be impossible to have these events. A extra special thanks go out to all the competitors that traveled the extra distance. Team All Your Bass, Team Shattered Dreams, and Adam Metcalf from Trenton, Ontario! Here are the event results: Stock 1-160 1. Shawn Robert.......143.7/143.5 2. Chris Sawyer.......138.8/142.4 3. Jeremy Scott.......136.8/138.1 4. Richie McEwen......136.0 Stock 161-260 1. Matt Clark.........145.0/144.4 2. Jamie Carr.........140.3/142.7/142.0 3. TSD Mike...........141.0/140.6/135.8 4. Jeff Dickinson.....136.3/138.5 5. Brandon Beckley....136.9/136.9 6. Brian VanSoyoc....…

Starting in March we will be starting our Thunder in the Park Series at the Colonial Village Fun Park. Stay tuned for more information.

I have been trying to decide whether or not to go smaller with my box build. All of my buddies that are a little old school when it comes to spl say big boxes are the way to go... But when talking to people I compete with such as TJ in his Yugo doing 52's he says go smaller. My current box is 3.68 cubic feet after driver displacement, but not port displacement. 69 sq inches of port tuned to 42 hz. The woofers are two TC sounds OEM 10". I am thinking of shrinking down to a triple front baffled, double walled 2.4 cubic feet gross, and using 2 4" aero-ports and slightly raising my tuning as the change in box orientation changed my resonant, and building the wall (in the trun…

Hi i've had my fi btl in now for over two months and although im fine with it i've noticed its not hitting the highs quite as well as i want it too....but the lows are exremely awesome i have the box tuned to 33hz could that be the problem...any help is appreciated.

I'm running 1 SSA DCON in a 2.3ft^3 ported box at 31hz, its down firing in a 02 GMC sierra on a Diamond Audio 400.1. It just doesn't seem to hit the low low notes like my last subs, I dont know if its because its ported and they were sealed or if its the Subsonic filter or what, just looking for suggestions. I can feel the lows and the port fires like a hurricane, I just can't hear them that well, it seems to be only below around 30hz, for everything else it slams, and seems to play everything accurately.

I have a soundstream tarantula tr880/2 amp(880rms) and now a soundstream splx 12" 750rms. I have 4 ga amp wires and 10 ga speaker wire, all on a alpine headunit. trunk is dynamated. I just got this sub off ebay after selling my jbl 15wgti. I didnt have much space and I figured I could get a 12" to pound as hard as a 15" I've saw guys at comps do it. But with this soundstream sub I'm not impressed. It came with a cheap particle board 2.3 ft. air space ported box, I plan on getting a nice box. the 15" hit a lot harder then the 12 in just as crappy a box. If anyone out there can give me some pointers on how to get this 12 to sound like a 15 please let me know. let me know if…

Got bored looking at the new sub in the cardboard box from Fi and then i though duck tape and all hell broke loose!!!!

What numbers are you hitting with windows up, vs down? I need some numbers for this thing I'm doing. Thanks!

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

Anyone from the Long Island NY/NJ/CT Area want to build me a sealed enclosure for 2 12s - or know of anyplace that would? I'm not looking for anything extravagant, just something ~ 1.5 FT^3 per chamber. I don't have the time to do it myself (and I've never made one). Trying to stay away from pre-fab junk. Shipping or Pick-up is cool. Can someone help me out? Thanks, Snapper

Hey fellas quick question, I was talking to co-worker and he was telling me about Obcon subwoofer enclosures. So I looked them up. They are using a concept called labyrinth porting. I ordered a Sundown SA-12D2 a few days ago and the recommended eclosure size is 1.75^3 tuned to 30 hz. The box I'm looking at is 1.8^3 tuned to 38 hz. Has any used these enclosures or heard some one that was using them. If so just wondering what your opinions or impressions of them are. Your opinions are valuable to me because of everyone's knowledge on this forum. Thanks ahead of time for any opinions. Also if I decide to go sealed would it be ok to run a slighly larger than recommended seale…

Hi all,has anyone built these ports and where can i get the formula to calculate the area and cutting angles please

Ive never built a box that wasn't square all around so this is new to me. I have an angled back plate, so if I angle the port a long with it, the bottom of the port is shorter in length than the top. Which should make the tuning on one side of the port different then the other or how does that work? How do I create a center port like this and have the tuning and airspace I require? These are interior dimensions. I'm sure I'm over thinking this, but I want to stay as close to 13 cubes and 30hz as possible.

say you have a box with the cuft you want to port it with but this box has a reallly strange shape will that change the port size,length, or anything at all? its going to be for a ssd 12 the box has 2.12 cuft going with a round port

I am in need of a site or location to get OEM fabric. Not having any luck with Yahoo or google. I not only need the same fabric my seats are made of but I need quite a large bit of OEM vinal also. The local dealership here wanted too much, nad I had to order in bulk on top of that. 2002 Chevy Silverado Tan interior Any help would be appritiated.

I need to make a snorkel for my truck so i need to build a fiberglass tube that goes through my fender and up the A pillar. how should i go about building a fiberglass tube in this manor? also what is the customary way to attach such a thing to the outside of the vehicle? thanks.

Short notice. Saturday August 9th! Xtreme Sound Cruise-In and Competition. 1701 Queen City Avenue Cincinnati, Ohio Registration begins @12noon... I'll be there with my TL running the SPL portion. We'll be doing a StreetBeat style, and a headrest SPL style... as well as cheap re-runs... -Noah

who let Joe in? I SAID WHO LET JOE IN?!?! YOU KNOW, Joe from CIA Engineering? Why you guys chasing all my sponsors down and making come to my hiding place? Hope you enjoy your stay here Joe. Might not be the biggest forum around, but the knowledge here and the people wanting to learn is strong here. Shane

Wassup guys, I just got in my possession 2 18 inch Aq hdc3's bnib. I will be walling my truck and my deminsions I came up with are 51'' width 38'' height 24'' deep. With 1.5in thick walls, I get 20.4 cubes. I gave my self alittle wiggle room for the height and width. I will be tuning to 36 hz with a 9x38 port that is 20.5 in long. It will be braced and before bracing will come out to about 8.2-8.4 per sub, that is after port displacement. If anyone could run those specs I would greatly appreciate it. This will be going into a 2000 gmc Sierra ext cab. They will be powered by 2 crescendo bc2000ds at 4ohm strapped daily then 1 ohm strapped for comps I'm looking fo…