towncarblue Posted August 30, 2015 Report Share Posted August 30, 2015 im trying to get a sub into my honda accord 07 sedan. i want to put a sub as deep into the trunk as i can into the accord. i dont care how loud it goes , its not my goal. i want some deep low bass. my measurements are 28"w x 15"h x 10"d @ 1.76 cubic feet before any displacement. i've done alot of research and im running out of google search options. i have two different subs that im looking at and one that im not sure about. 1- stereo integrity mag v3. ---- ported this sub is supposed to be 1.5 cubic feet ported @ 35hz. i did some calculations using torres tuning calculator and figured i only needed a 2" aero port with a length of 2.8" . upon searching i figured out that its too small and would lead to terrible port noise. i honestly never done a round ported box and i have no idea how / if i can get one installed in my current setup. i've tried using winisd but i need to learn more before i can understand what im doing. i once tried to build a L-port box using re sub box calculator but it came out sounding terrible , never tried again . that calculator is not recommended too much. 2- dayton audio reference ho 15" ---- sealed this sub is supposed to be 1.5 cubic feet sealed. i am considering this setup because i assume that a 15" can go deeper than a 12". with some slight modification to the height on one side of the box i should be able to fit this sub in. i just don't know if the HO is my best option. 3- dayton audio ultimax 12" or 15" ---- sealed the box specs for this sub start at about 2 cubic feet 12" . even-though the recommended cubic feet is too much , a person from another forum recommended it " it works great in sealed application and it gets deep " . don't know about that. opinions welcomed. can someone help me calculate the correct aero port for this box ? am i better off with the dayton HO sealed OR the stereo integrity mag v3 sealed ? Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted August 31, 2015 Report Share Posted August 31, 2015 That's not a lot of space to work with. If you want to do a ported sub you are probably going to need to be looking at a single 10". With a sealed box you definitely have space for a 12", maybe at 15", but that will be pushing it. How much power/what amp are you going to be using? Larger subs don't necessarily hit lower than smaller subs. Its very dependant on the particular sub and the box its in. I've used 6.5" subs that play lower than some 15" subs. If you want deep, low bass, a ported 10" is probably going to be your best bet on the space you have, IMHO. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
towncarblue Posted August 31, 2015 Author Report Share Posted August 31, 2015 im using kicker zx 1500 @ 2ohm 1,000w rms or @ 4ohm 850w rms the amp can go higher than 1000w rms but im not going past that. i have a $250 budget for a sub what is the deepest hitting 10 i can get ported ? Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted August 31, 2015 Report Share Posted August 31, 2015 A SSA GCON 10" would probably be my first choice, followed by a FI X10. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
towncarblue Posted August 31, 2015 Author Report Share Posted August 31, 2015 Wow that sub is ported at a low frequency. How do I figure out the size and lengh of the port correctly? Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted August 31, 2015 Report Share Posted August 31, 2015 Port length is determined by the net volume of the box, port area, and tuning frequency. There are online calculators that can help you determine what length your port needs to be to get the tuning you want. There area also programs like Torres, WinISD, Hornresp that will let you do that as well as a whole lot more. If you want, you can probably get someone on SMD to design a box to fit your space for you. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
Joe X Posted August 31, 2015 Report Share Posted August 31, 2015 OP are you really set for a small box? a 12" is more efficient on the same power and the box size would not be much more than an extra 0.5 cubic feet net. Link to comment Share on other sites More sharing options...
towncarblue Posted August 31, 2015 Author Report Share Posted August 31, 2015 yes i can . ill lose a bit more trunk space but i know it will be worth it. using rockford fosgate sub box calculator .. 28"w x 15"h x 12.5"d would yeild 2.12 cubic feet and 1.95 after sub displacement. i can do those measurements [ i just increased the depth by 2.5"] since im now at 2 cubic feet, am i better off with two 12" in a sealed box ? also.. i used torres to get the port length , what i dont know is how to get the right aero port diameter so that i can avoid port noise. using torres i did a L-port design with a 1:9 ratio. what is my ideal ratio supposed to be ? here is my torres screen shot http://i261.photobucket.com/albums/ii42/towncarblue/best%20one%20so%20far.png Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted August 31, 2015 Report Share Posted August 31, 2015 Your port ratio is too high. Lower ratios are better, ideally I try to keep it under 1:5. Determining the proper amount of port area isn't an exact science. Here is a port area calculator that will give you an idea: http://www.carstereo.com/help/Articles.cfm?id=31 It tends to error on the high side, which is better than the opposite, but it can result in you using a pretty large port. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
towncarblue Posted August 31, 2015 Author Report Share Posted August 31, 2015 Port length is determined by the net volume of the box, port area, and tuning frequency. There are online calculators that can help you determine what length your port needs to be to get the tuning you want. There area also programs like Torres, WinISD, Hornresp that will let you do that as well as a whole lot more. If you want, you can probably get someone on SMD to design a box to fit your space for you. i need someone here at SMD to design a box for me. lengh and width cannot be changed , try to keep depth as low as possible for a stereo integrity mag v3 Link to comment Share on other sites More sharing options...
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