Which would you suggest with a MTX 9500 someone told me that having a ported box can damage the sub is this true?

 

yes if you play frequencies below tuning without a subsonic filter at a high volume. how much power do you have for that sub?

 

The speaker should have a specification sheet on the sub. If you cant find this, go to MTX website or crutchfield.com

 

Like 96 Pearl said, please check the specs of the sub. Some subs are made specifically for each application or could also handle both sealed or ported. Lets say it could do both, then it's a listeners choice, I had sealed ever since my first system. But I finally got into ported and as long as you tune them correctly you maybe happy. I have mine tuned to about 35Hz and it sounds as good as a sealed but I get the extra low bass.

 

That was perfect...couldnt have said it better.

 

the sub manual gives me instructions for Sealed Or Ported and how do you tune a ported box

 

the MTX people can answer your question and explain to you a design for you sub in a ported enclosure, if the manual doesnt do it for you.

Always go ported if you have the space. A port = free extra output without having to put more power on the sub.

 

A port = peaky frequency response with loss of low-frequency output compared to a sealed enclosure. And the whole purpose of a sub is the low frequencies.

 

There is a lot that goes into a ported box. First you need to know the Fs of the sub, that should be given on the sub itself. You want to stay close to that value for the port frequency, it is usually low. If you like more stiff hard bass tune to around 50 to 60 Hz but you will loose low boomy, deep, bass. If you want give me an idea of what you want, the specs on the sub and I will try to help you. Also you need to let me know how many ft^3 (Cubic foot) you have to work with for both 12" subs.

 

A ported box will take bass you will most likely not hear or notice, and move it to the range of frequencies you will most likely hear/feel. A sealed box will shake your car without making much noise.

 

DJ that's not completely true as Sealed is best utilized for Sound Quality and Ported is best for SPL. You can properly tune a Ported for SQ as I believe I have done. It is more accurate to say that a ported box will take the ported frequency and enhance it by approximately 3db (twice the output of a sealed).

The drawback to this is, if a box is not built/tuned properly the sub's can start bottoming out on the basket frame or you could get "port noise".

It's alot easier to build a sealed properly than a ported, but I believe if you spend the time to do the ported you will be satisified.

 

completely right... I guess since Im in a shop all the time I forget that building the right ported box can be a pain in the butt, and its a lot easier to find a prefab spec. sealed enclosure than ported.

Ill stop complaining. I just like porting

 

my sub came with instructions to build a ported box so would that be a box that is already tuned

 

If its ported, then its tuned to something. It should tell you what its tuned to.

 

BEFORE YOU DECIDE ON WHAT TYPE OF BOX YOU SHOULD BUILD, YOU NEED TO KNOW HOW MUCH POWER YOU ARE GOING TO PUSH THE SUBWOOFER WITH.

If you have "little power" (wattage) then it may be better to build a ported enclosure because it will be more efficient. This means you will have more volume/loudness with less power.

If you have "plenty of power" (wattage) then you may want to build a sealed enclosure purely for SQ. A sealed enclosure requires more power/wattage to the subwoofer to generate higher levels of volume/loudness. But imho are the best due to the range of frequencies that can be achieved.

SO THE IMPORTANT QUESTION WE NEED TO KNOW IS HOW MUCH POWER ARE YOU GONNA BE PUSHING TO THE SUBWOOFER. AND HOW MUCH POWER CAN THE WOOFER HANDLE (BOTH IN RMS PLEASE)

 

man to tell u the truth if ur pushin a nice sub like u should have a good amp and a VENTED box would work best u would gett a deeper hit but u should have someone make it for u unless ur the man...but if u were i dont think u would be askin

 

That is a beast of a sub (50lbs)
Its MTX's best and they put it up to the W7, so do it right, get a diesel amp that will push that thing 700-1000rms and seal it

http://www.mtx.com/caraudio/products...a_T9512-44.pdf

 

my plan is to get the MTX 801d which will push 800 watts RMS @ 2OHMs

 

Build A Sealed Enclosure........................

 

im leaning towards sealed now just because of how easy it is to build a box and if i am not satisified i will build a ported and then try it out

 

Make sure when you build your box to brace it properly. If your woofer weighs 50lbs the box is gonna need it big time. Here is a link for you to read, it has some pointers about bracing. http://jlaudio.com/tutorials/bracing/index.html

 

I'd do 1" mdf if you can get your hands on it, and cascade the insides for a tight seal.....