Stihlman9

Ok, sounds good. Thanks again for all your advice!

Hey guys! I am currently planning what i think (IMHO) what will be a pretty cool build but i have a few questions. Background: i currently have 1 fi Q12 loaded 2011 model running on a hifonics brutus 1700watt amp in a box that is too small so here is what im planning to do... The Plan: i would like to custom build a box to hold two fi q 12s. right now, its about 4 cuft ported and tuned to 32hz. i can provide tech specs if y'all need but i dont think its necessary for this post. The Question: I know fi came out with new models for 2012, and i know that running 2 different subs in the same box is a bad idea, so... will i have a problem running my 2011 q in a box with a 2012 q? Or do i need to sell my 2011 and buy two new 2012s? Both subs will, of course, be receiving identical signal from identical amps. THANK YOU to all who reply as your advice is greatly appreciated!

Wow, very nice reply man!! It means alot to a guy like me. Well, that certainly proves that 3/4 will be just fine - which im glad because, like prorabbit said, "over kill never hurt anyway, it can hurt the pocket book" haha ​Yep, im definitely an advocate of "do it right the 1st time" and im glad you are too I think, as of now, im gonna stick with 3/4in and double the baffle so i can flush mount. I cant think of much else to say other than that yall have answered all my questions with great detail and improved ideas i didnt even know i needed help with! I greatly appreciate all the advice, and i will be sure to post pics of the finished product when im done. Btw... since im new here... when all the questions in a post like this have been answered, is it SOP to just stop or do we usually just keep talking about stuff till we run out of stuff to talk about? I'll be happy to discuss mids, highs, wire, or anything else yall want to haha!

@Alton - Well i shouldnt have a problem with the double baffle affecting the port since ill be using an areoport, but i can definitely see how it could have messed up the very nice look of your box haha. @Alton & prorabbit - Im surprised that yall like the 3/4mdf, not that im against it (hey the less $ the better haha) but ive read about people thinking that 1in and thicker are "soo" much better. Or is that just for huge woofers with huge power handling? Btw, i cant believe i havent stated my goals yet... 1. I would rather have it sound great than be as loud as possible - my one Q now has already gotten my in some trouble (haha nbd) so i figure 2 Qs in any box will be plenty loud for me! 2. I listen to all kinds of music (hiphop to country to classic rock), so i dont need a "one note wonder" AND just so yall know - this build is a few months off; i will have to wait till a break cause i just dont have time during school so please dont get anxious for pics - believe me, im more anxious than anybody haha! thats why im doing all this planning now - to keep my audio appetite appeased until i can build this sucker!

Pretty much exactly what you're thinking is how I did it. I cut out a frame that was 1.5" larger than the 12x24 window. Used my router to recess a 3/8" wide and deep lip into the frame and the plexi itself. Then sealed the hell out of it with silicone and glued it to the front panel of the enclosure. The window on the front panel of the enclosure is an inch smaller than the window for a good sealing overlap. It's been a successful way of doing it so far. I was going for and like the look of the deep recess to the plexi window. The plexi sandwiched perfectly between the frame and the enclosure front and hasn't had any sealing problems yet and hopefully never will. Sweet! I think thats how i'll do it then. You may have already said this but what thickness plexi did you use? and have you had any vibration problems? Oh, and do you think 3/4in mdf will be enough or should i go 1in? I know 1in is more expensive and all that but if im gonna do this i want to do it right. If i go 3/4, im seriously considering double layering the baffle. Thanks!

Im looking at Altons picture and it looks like his plexi is recessed, and i like that. Alton, do you have any tips on securing the plexi after building yours?

@prorabbit Im thinking a little recessed. Definitely using 3/4in plexi. If i use 3/4in mdf, i'll route a 1/4in step on the back side and use a wood frame with screws on back side to "clamp" the plexi in, along with glue, of course. If i use 1in mdf, i think i'll make my routed edge 1/2in deep. Im open to any and all ideas though as im sure ya'll have more experience than me!

Ok, so as of now i think i will use one 6 inch aeroport. here is a pic of the box outline - the square hole on the front is for plexiglass and the one on the side for the port. http://s1157.photobu...nt=75c4a0c3.png yes i know the cutout for the port looks huge... its just cause the port is flared to 9 inchs at end

Port area is not based on enclosure size, but by the drivers used as well as the goals in mind. A pair would be to much and would be far to long for most to every consider. For a couple of FI's I have done single 6" ports in the past and they work just fine, sound great and get plenty loud for daily and/or SPL. The enclosure I had pictured actually ended up with a pair of OA 12s and was doing very very well for a trunk car. Also, you have to consider the room available and how everything works together in the application. I like your enclosure though, that read looks real nice. Oh, ok... so maybe i can just run one 6 inch.... that would be great because i wouldn't have to redesign my whole box haha

Oh, ok - thats good to know. Yeah, i have plenty of trunk space (gmc yukon) however i want to take up the least amount possible cause i still have to be able to carry stuff. On the side of my box that i can port, i can fit up to 3 aeroports or one slot port. Because of the advice ive received on here, im leaning towards a large slot port now... Btw, i cant thank all who have replied enough! as a new member, i didnt know if anyone would care but now i feel really welcome!

@alton Yeah i was planning to tune to 32hz as well - glad it sounds good! Thats alot of port area, i was planning on one 6inch dia. flared aeroport and now im thinking that might not be large enough to prevent port noise... what do you think?

Ok, here are the pics of mine... http://s1157.photobucket.com/albums/p594/stihlman9/

@alton Ok cool, i got it now! Well, you pretty much just answered the question (thank you ) i started this topic over - mine has the single so it must be the newer model. Btw, your box is sick! the red color is awesome! what is that thing tuned to?

Wow, that looks nicceee.... Ok, i guess i can do that (the photobucket thing). Is photobucket what you used to get that image on here?

Im surely missing something here... i have the pictures you wanted and they are saved on my desktop (im using a mac) but i cannot figure out how to get them onto the forum! I've tried dragging, copying and pasting, everything i can think of but my browser just keeps opening the image in another window, not actually putting it on the forum editor. How do you get images on here?

@"post a pic" Ok I'll see if I can do that tomorrow - don't really want to go outside and pull it out the box now haha

@ricksi30 wow thanks! But I'm not quite ready to sell yet - I'm a student and on a student budget so... Well you know how that goes I do a lot of planning before I build anything so right now I'm just trying to figure out how my project will work when it all comes together. Btw, BIG THANKS to everyone who has replied! I know I'm new to this forum and I didn't expect this much help but this is great!

About the motor, I'm not quite sure how to answer that - sorry still learning about all this car audio terminology - not a total newb but definatly still learning Its a 2011 model with all options - cooling, internal leads, spider, etc. (not high qts) it has dual 2 ohm voice coils and I have it wired in parallel for 1 ohm load.

@streetlegal actually I thought of that, however, I can only port on one side and I would like to have a plexiglas window in front that shows both subs (don't worry guys - it will be plenty thick haha) so that kinda cuts that option out. Thanks anyway though!

Ok, I'll be sure to send them an email. Thanks for your advice Btw, I will definatly be making the box on the large side - the one I have now is too small so I won't make that mistake again haha!

Wow that link was great! I really enjoyed reading that and definitially learned some new stuff.