Help me get loud and stay somewhat musical!

[Oldbass38 10+ year member]

I would also go with dave at PSI with subs. I just did an install with a pair of his rebuild and am literally blown away by how loud they are and how they sound

I forgot to mention that I'll go with PSI too! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Oldbass38 10+ year member]

very similar to the forth order except the front wil be very small 1.5 cu with the 13x7 port lined up exactly to your cut thru dont make the port very long you want it tuned high 100hz or so the back section will be the large section 4 -5cu tuned around 35-45hz the lower the more musical the higher the louder. just match the length on the 6in aeros and get them to line up with the 6x9 holes recommened making a 6x9 cut out to cover the hole and have the aero come thru helping to seal the pressure to the cab

I really like your idea of a box design...I've been talking with 80inches and I think he's got me a design...I decided to go with 4 SA's 10s on a 3500D

 

[Wingman0121 10+ year member]

If he wants something musical, as in all-out SQ, go with a sealed box design and something that has 3" or greater excursion.

 

[Villeza1 10+ year member]

Why does it have to be sealed?

 

[anwaypasible 10+ year member]

i kknow what you want but you need alot bigger opening thats like trying to shove a baseball through a 50 foot garden hose.

giant aero ports in the 6x9 holes will help gather some of the air from inside the trunk and get it into the cabin area.

you can then cut the carpet and have the aero port flange on top for a really nice look.

then just use the back doors (or walls) for rear speakers if you really want back speakers.

 

[anwaypasible 10+ year member]

Why does it have to be sealed?

sealed boxes maintain linear xmax better than ported boxes.. as long as the speaker is square with the rear of the box.

and also.. there is a lot of latency involved with listening to bass from a port.. the rest of the system would need to be time aligned to compensate for the latency from the port.

doing such a thing can be very complicated considering the latency from the port can vary depending on the frequency.

therefore, you can simply set 5ms and leave it.. there are gonna be notes below the tune of the box that play faster.. and also frequencies high above the box tune (close to the crossover point) are going to also have faster latency times.

you would have to manually program a digital sound processor and put that inline between the radio and the amplifier.

i have heard a bandpass box sound really REALLY good.. but it wasnt very loud at all.

the speaker simply fit well with the box and all the lows were boosted in all the right places, while the highs were cut in all the right places because of the sealed chamber.. a quasi-effect that sounds good but isnt going to give 147dB even if you had four of 'em.

besides.. you get a whole warehouse more detail from the air when you dont mix a speaker cone with port air.

 

[Oldbass38 10+ year member]

sealed boxes maintain linear xmax better than ported boxes.. as long as the speaker is square with the rear of the box.and also.. there is a lot of latency involved with listening to bass from a port.. the rest of the system would need to be time aligned to compensate for the latency from the port.

doing such a thing can be very complicated considering the latency from the port can vary depending on the frequency.

therefore, you can simply set 5ms and leave it.. there are gonna be notes below the tune of the box that play faster.. and also frequencies high above the box tune (close to the crossover point) are going to also have faster latency times.

you would have to manually program a digital sound processor and put that inline between the radio and the amplifier.

i have heard a bandpass box sound really REALLY good.. but it wasnt very loud at all.

the speaker simply fit well with the box and all the lows were boosted in all the right places, while the highs were cut in all the right places because of the sealed chamber.. a quasi-effect that sounds good but isnt going to give 147dB even if you had four of 'em.

besides.. you get a whole warehouse more detail from the air when you dont mix a speaker cone with port air.

Hmmm....Well, I do want to enjoy how it sounds and yet score well on the meter. I'm not 100% understanding everything you said because I'm not real familiar with how all that works //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif With that being said, any suggestions on what works best for my wishes???

 

[Rocky213 10+ year member]

that guys talking to much java imo..makes it sound more complicated than it really is..go ported imo..ported will sound twice as loud as any sealed..just do the **** thang and enjoy yourself ****..when your done you'll have a real boner

 

[Oldbass38 10+ year member]

that guys talking to much java imo..makes it sound more complicated than it really is..go ported imo..ported will sound twice as loud as any sealed..just do the **** thang and enjoy yourself ****..when your done you'll have a real boner

Of course I'll go ported. My existing box (in my sig) is ported. However, now that I've got a new car with an actual pass thru, I wanted to know what options I have. My old car had no opening from the trunk.

 

[anwaypasible 10+ year member]

that guys talking to much java imo..makes it sound more complicated than it really is..go ported imo..ported will sound twice as loud as any sealed..just do the **** thang and enjoy yourself ****..when your done you'll have a real boner

the government has to make speakers so they can listen for aliens.

that means the amount of research and development going into the end-results are far more than what some person on the forum can do in their garage.

when the government is looking at the magnets in molecular form and designing/optimizing the magnetic gap for the voice coil.. why should they share that heavy amount of research and development with you if you arent going to understand and appreciate the technical aspects for what they are?!

yes, a ported box will sound twice as loud.. but a sealed box will be twice (if not triple or quadrouple) as clear and detailed.

the original poster said they wanted lots of pressure and details.. not a wind machine that sounds muddy and blurs all its detail.

you are right to say that it isnt complicated.

if you want high pressure, you need a speaker with lots of xmax (typically resulting in rubber surrounds that are thicker than 0.5 inches)

to find a fat rolled surround subwoofer with lots of clear details requires a transducer motor capable of delivering the performance.

there is a vast difference between decibel levels and pressure levels.

i've heard cars drive by that are loud enough to drown out a police siren or ambulance.. but you couldnt feel the bass at all, and that is decibel levels.

other times i've heard cars drive by that sounded pronounced, and you can feel the bass in your chest while it feels like the ground is shaking.

another time i heard a suburban from four blocks away.. and when it pulled up next to the house i could feel the soundwaves in my face and chest as it felt like the ground was shaking, yet my ears couldnt actually hear the notes.

this is an example of sound pressure level.

one guy told me he had two 13w7's in a rather small car and the windshield cracked.. what more of an example of pressure do you need?

my home stereo has two 12's and i can hear 'em.. but they are only moving about 1mm

what more of an example of decibels do you need?

i had a cheap pair of 12 inch woofers that refused to move in and out.. but sound would come from them despite the fact that they werent moving in and out much.

instead, they were sonically vibrating like a tweeter.. and when i tried to force them to move in and out with a 10hz and 5hz tone.. the voice coil became unglued and started to unwind.

some serious speaker demo'ing needs to take place so you can see the amount of cone excursion (which is going to cause the pressure) and also take note of how much audio you could actually hear when the speaker cone was moving in and out.. because that is going to be the determining factor of what you can actually hear with your ears.

but i gotta tell ya..

listening to subwoofers with your body and not your ears is a really really fun thing to try, because the details are all over your arms and you dont have to listen for them.

you are FORCED to take notice of the subtle details.. unless you have some sort of body high going on.