REVpuggie

just wanted to mention that I'm finally getting my very own Termlab !!

"glued only" boxes are a lot of fun though , I say go for it ! aplying the right amount of pressure is a big thing when glue is dryng , the glue I use needs 2,5kg per cm2 minimum and a good room temp . I wouldnt recommend D4 glue (the kind that foams up) rather a white D2 woodglue that dries up transparant ,you'll need a thight fit for it but will be a lot stronger

I'm not german ....... pm'd you with msn adress , i'll start up BBpro and AJhorn

to the left above the amp ? looks like there is room ......

yes , it will still play low but with way less output , why not make a port ouside of the box ?

the answer in in your question , your port is way too small , needs to be at least a 10cm aeroport 60cm long at 35hz tuning

Nice ! does that give sufficiant pressure in the big beemer ? where in germany are you from ? close to the border to holland ?

4th one 90 liters closed for an Exodus-Audio Tempest-X first one with srews terminal wired , look at the topplate of the box below , its a backloaded horn I'll post later.

3th one : 60 liters tuned @ 45hz for a Hertz HXS12spl have to search for a pic including the woofer (I think I've got the box in the attic, maybe I'll pull it out and make a pic of it)

you could maybe mail a DB-drag / bassrace organisation if its possible to host a demo or if a meter is located nearby the know of

Aren't you using the Z1 ? My thoughts exactly , thats a sexy amp !

I wonder how long it takes for guys like @ fisher customs to build an enclosure like that !

I;ve read thats the case for speakers ,at 194db the speaker would begin moving in its own created vacuum ,so at that point wont be able to reproduce sound . Nature has phenomenons man can never immitate with technology though

ask a local audioshop to pay for the rent of a termlab (of maybe the've got one) and some medals of some sort , in return they can advertise on the event . make sure you've got the permits you need from the authorities. oh, food and drinks , and make it cheap!!!!!!!

a smaller box usually means : groupdelay goes down (a good thing) efficiency go's down powerhandling go's up (till the point that the box get so small the sub cant get rid of its heat sufficiantly) less extension in the lows You'll need a longer port to get a tighter bass and hitting the highter notes well , you'll get that by tuning the box higher ,needless to say it will not play as deep as it would tuned lower , but it wil be louder. getting it right the first time is really hard , make up your mind and start building , if you dont like the way it sounds post that and we'll come up with a sollution to your problems , and start building again .

Thanks for the comments guys , @bigpete , I tryed a black stain but it didnt work out the way I wanted . I liked it better too before paint , the box wasnt for me @nmssd12 , I use srews sometimes too , there are pro's and cons , MDF isnt very strong its just a question of where you apply force to it , keep that in mind and srews can work fine, in the end the glue is the stuff that keeps it all together

before I read the rest of the topic , I voted the 75 lincoln . Because : thicker metal walls , more easy to reinforce roof with poly (and some sort of poly famework) But if you've got gometing with serious space to spare like the RAM I'd definatly say go for it !

I seriously hope you're going to activly cool those amps with fans , they'll heat up rapidly in encasings like that !

the kicker-enclosure is a 60 litre(2,1 cuFt) 35cm port cabinet (tuned for a big Hatchback) I typically dont work on HT systems , can do it as long the system is activly EQ't , So I normally build car-enclosures as is this (the port-tuning is not particulary suited for HT , works well non the less) and Yes I also sell and build on contract , most of my builds are for friends though , I aim to have as much fun a possible building enclosures ,because that for me is the hobby . I'm from the Netherlands ,Europe ,so it will probably be of no use for US members to ask me for a build . build 2 : 150 litres (5.3 cuFt) tuned @ 33Hz getting started : bracings: fitting ports: terminal cutout: gluing together: sanding(includig me in the picture): paint: endresult:

I've been searching to find that topic !

In my opinion size of the woofer does not dominate the "speed" of the woofer ,the suspension the air inside the box provides does , smaller box in combination with a (little) highter tuning of the port should solve your problem . I'd stick with the BTL ! I've had very good results with a backloaded horns too (again small back chamber)

this played in an audi A3 with the backseats taken out for about a year , I had build it for an audio dealer back then who is a good friend of mine , when he bought a different car , the sub was supposed to be in his livingroom temorarely but never made it back in his car , so it has been wrecking porcelain since . I've got a few more ,and I'll begin with a build for an Ascendant-Audio Mayhem 15d2 in a couple of weeks , which will get to endure 5000+Wrms , but I'm still undecided in box style , QWtl or bassreflex ,termlab measuring has also yet to decide which way to point woofer and portmouth (any suggestions? ,its going to be in an Mazda MX3)

I'll post another one tomorrow

getting started : getting a dubble sided flared port in there : worked the horizontal bracing open and added the first layer of triplex : after a few layers : getting a layer of triplex on the top and bottom : the result: painted black : the end

kmh divide by 1.6 to get mph