General Audio

At what frequency does a tone go from unidirectional to omnidirectional? Im considering doing a wall build. I could fit 2 -12" or possibly 4-10" midbass pa speakers behind the seats to use strictly for midbass to keep up with the subs and the 4 pairs of 6.5's I have in my front doors. I know this isnt the best way (sq wise) to go about doing it but i really love strong midbass and it has been something i have been lacking for quite some time now.

Does anybody know how big a box should be for 2 18" Fi Bl's ?? Can someone please tell me some dimensions or measurements Thanks guys!

not getting my car back for another week, someone hit me and its in the shop. Now all I can do is watch my 13w7 sit, (just bought it for a deal!). I guess il just plan for some other things!

i wanted to build a box just like this one for 2 18" fi btl's this box in the pic is for the mtx 12"s i have now im putting it in a dodge caravan so i have pretty much a crap load of space i just wanted to know if any one has any ideas on dimensions that i would need to get it tuned to 31-33hz http://img397.imageshack.us/my.php?image=g...tachmentpd2.jpg

So I've been listening for leaks in my new sealed box and browsing through stuff that I haven't heard in a while. A song that I've heard countless times before, Dread Rock (Paul Oakenfold, Matrix soundtrack) literally made me jump out of my seat when it hit a certain note that I've never heard before. I've had a small sealed enclosure with my single RL-i8, but it never hit sounds like this. I guess it really proves that it's all about the box... although I'm sure adding another RL-i8 (and lowering the impedance to 4ohms in the process) didn't hurt. Obviously, there are SPL setups that make the listener almost lose control of their bodily functions. I'm more interested…

Is there a big difference between going with slot port or an aeroport?

I currently have a 12" FI BL in my car with a US Amps MD1D. I am looking at maybe putting another one in and I have a few questions. How big should the box be? FI recomends 2.5 cu. for one so when you have 2 do you double that? I have a dual 2 ohm so I would get another dual 2. I have a Hifonics 1206D sittin around so should I use that or buy a amp that is .5ohm stable? Like a Lazar Opti2000D. Or a big amp that can give around 2000 watts at 2 ohm. Would I need a bigger alt. current one is 120amps and I have a Kinetic 1400 batt. in the front and am going to look into getting a smaller batt. for the trunk.

SIIIIIIIKE lol. I made this in my InDesign class (one of my throwaway classes to fill my schedule up)and I think it actually turned out decent. DON'T HATE on the Meade picture, I needed a face-offy picture and that one was perfect. Just thought I'd throw this up here since it has SSA references on it. It's supposed to be folded up like a DVD/Blu-ray cover before anyone asks about the random title in the middle of it.

so i finally manned up and decided to wall my s10. im doing two 15inch aa mayhems. i am having shizzzon design my box and i will build it. im posting this to ask for tip and tricks to doing a wall from anyone that has done one. Any input is apretiated.

My FI BTL15 is on its way and right now im working on getting the money for a high output alternator...locally a guy can make me a 120 Amp Alt. Is a 120 Amp alt enough to power the 15" Btl????...im going to be running a Hifonics BRZ 2100 at 1 ohm probably round 1900-2000watts steadily....im an everyday banger so its gunna be seeing a lot of work I have a Kinetik HC1400 as my main battery and a HC2000 in the trunk (Upgraded Big 3 to 0AWG)

Basically just want to have an idea of how loud should I be able to get with this setup. 1 Fi BTL 18 Fully-equipped @ 1ohm 1 Sundown 3500D @ 1ohm Big 3 1 XS D3100 battery (under the hood, main one) Alpine 9887 HU Maybe 225amp alternator Zero gauge everywhere. Enclosure around 5-7 cubic ft tuned to 30Hz

Hey guys, Heres my problem: My system isn't loud enough for me anymore. What I have: -12" Soundsplinter rlp -Planet Audio amp [does 650 into 2ohms(which is what I'm running my sub at)] -2.6 @ 34hrz box I think its a combination of my mildly weak amp, and not quite the right size box thats throwing me off, but then again, I could be wrong. What I'm considering doing is selling my RL-P 12" and the amp with the box for as much as I can, and with it purchasing a 15" sub (most likely another rl-p) and a 1400w amp and then building a new box. I'm also considering buying another 12", buying that same 1400w amp, and running 2 12"s. If I'm thrifty and get some good deals, I'm sure…

Looking to start buying the pieces for my next build and im fairly sure im going to be using a bc2000 to power it but as far as drivers im pretty split between a few options. I want to be able to get really loud at around the 30-33hz area and really loud period but no a complete loss of musical ability. Going to be a daily driver build. Mainly been looking at either 2 15" ssa icons, dc level 4s, fi bl's or 4 sa-12s. Im leaning toward the sa-12s right now. Any advice would be appreciated.

im very new to car audio. my problem lies with when my volume of the HU is all the way to zero and i go to my subs there is a faint noise its hard to explain well it's kinda like a hum or a buzz but very quite i tried the ground loop fix by grounding my rca's to the HU and that helped a bit since the noise was louder before and that got rid of it then i found a better bolt for my amp ground so it was more secure and that did not help. so idk what could be the problem. my setup with the problem HU: pioner DEH x3500ui subwoofer: one kenwood kfc w3013ps other sub is unknown i was told from the seller it was an older kenwood but im thinking it is a home thearter subwoofer. …

Whats the difference between those 2 terms?

I found port length calculator on a web sit called Mobile Information Labs, does anyone know if its correct. or is it a better one out there.

I'm interested in this alarm. I have some feature questions, and DEI will not answer them on the phone due to "liability issues". They'll only speak to the shop owner. Well, my preferred shop owner basically contracts out a revolving alarm installer.. so neither of them are fimiliar with this alarms capabilites. I'm shocked that DEI cannot answer simple feature questions on their own product. I'm not asking what wires to cut, I just want to know what it can do basically. I want to know if the 7900 can start via a time. The computstar alarm, allows you to have the car start by time, temp, or voltage. Does the 7900 do this? Can I add a small, non lcd remote to this (DEI sa…

anybody know how much a havoc 18 would be. doesnt say on their website, and i dont have a dealer around i doubt, but ive seen people getting their subs in the mail. where can i buy them at?

My truck dimensions are 54" Long, 38" wide and 31" High. And I want to get a good box for these 2 subs 2 18" Fi BL's Can somebody help with dimensions or measurements. Thanks

I have my kenwood excelon 4 chan mounted in front of my sub and port... I think the vibration is the reason I had to get the digital processor replaced on the amp and kept giving strange errors on the display. we tried larger head screws and my next option is rubber washers to stop the amp from vibrating so much. or would it be smart just to forget about the amp and jump on the pre order for the sundown 100.4. has anybody ever heard of that problem before?

I am trying to plan out my build so that I can place things and make my wiring but I have a few questions about a few things. I have a 1/0 run of power from my front going back to 2 extra batteries. I will be upgrading my big 3 4g with all 1/0 wires. In the back of my trailblazer will be the extra batteries. Now, I will just run the main power wire to the first battery then run a short wire to the + on the second battery, correct? And as far as the ground.. I'm sure it would be best to ground both batteries off to the frame... Should I run a short wire between the 2 -'s on both the extra batteries as well? And I'm also assuming that along with the fuse after the battery u…

This would be my first time getting an extra battery with a system and i have only a little knowledge on how to wire this. I am going to receive my AQ2200d and will be upgrading my stock alt to a 200A one and getting a yellowtop. So how am I supposed to wire all of this? Thanks in advance 18" Audioque 18 D2 with copper coil, AQ2200d soon to be in progress! FINALLY! can't wait to post up the vids

I can't help but notice that manufacturer are still using paper cone subwoofers, while other companies are using aulumium, carbon, poly cones etc. etc. What is the purpose for having paper around? You would think having paper in the automotive enviroment would be a bad idea, considering things like moist/ Uv rays. For example most factory speakers found in cars are paper,over a period of time they become dry-rotted or cracked, in other words wheather beaten.

Me and my buds are doing an aftermarket deck install on a 91 Pontiac Firefly and need to know wire color info to hardwire it to the cars connector. We’ve looked all over the web and can’t find a thing! Called car audio shops and they all want money. Here are the colors to the wires; hopefully someone can help us out: A: Solid Red B: Solid Orange C: White w/ Black Stripe D: Red w/ Black Stripe E: Orange w/ Black Stripe F: Solid White G: Red w/ Yellow Stripe H: Solid Black #1 I: Grey w/ White Stripe J: Green w/ White Stripe K: Solid Black #2 L: Grey w/ Black Stripe M: Green w/Black Stripe This is our decks wire color info: P o w e r: Memory (+12v Constant) - Yellow Ig…

www.audison.com or www.audison.eu Enjoy! Kelvin