Vented Prefab with custom seal

[fixinit]

A properly designed ported will play any music genre you throw at it and an sound just as good as sealed(better sometimes) however a prebuilt ported has no chance of sounding good. Manufacturers like belva, qbomb, atrend, sound ordinance, rt enterprises all have garbage box designs. Either they lie on airspace specs and tuning or they have horrible port area ratios. Dont get me started on the horrible construction job.

I subjectively disagree that a pre-built ported has no chance of sounding good. The dynamics of my car make for an extremely forgiving audio experience as long as system tuned, can sound good with some less expensive equipment.

This thread is kinda crazy... first you should have never bought the Mofo subwoofer...plenty of woofers way better for the price. Second you should have not bought that prefab...there are tons of boxes out there u can buy that are nice

The Mofo has loosened a tad and it's surprisingly been a great bargain tonality-wise. I based that purchase off Amazon, SonicE. and subwoofer website reviews. For $115 I'm not sure if I could have gotten a driver that would match the load from my amp and its "showoff" capability. The prefab is alright but could have gone bigger. I didn't risk it because I needed something lighter, front-ported and able to fit in a particular area of my trunk. There's a specific place in my trunk where this type of box creates an enjoyable soundstage in the driver's seat. It hits a little muddy with some songs but clean, deep and loud with others. This is why....

I'll be working on a plug for the surface-level port to hear how it sounds "sealed". I think an interchangeable prefabbed ported box with custom put-or-pull vent seal is a creative and smart way to approaching a low cost system that might kick some serious butt.

 

[tymoto21 10+ year member]

I tried to seal my ported box once for fun and it lasted 30 seconds and went back

Especially if the woofer is recommended for ported

I would not seal it

If you want to try it do something cheap quick and easy

Screw a square board over the port take a listen and see if you like it at all.

I hated mine sealed

If you do like it you can used bolts and T nuts to make it look nice and easily removable

 

[tymoto21 10+ year member]

Also just food for the critics out there

I put 2 $20 10's in a $20 prefab and did 143 and change with a $99 amp

$150 challenge but never got a box built

Had no lows and didn't sound amazing but it was bass

Put 2 sa10's in there and had decent low end and was louder to the ear

 

[fixinit]

If you want to try it do something cheap quick and easy

Screw a square board over the port take a listen and see if you like it at all.

If you do like it you can used bolts and T nuts to make it look nice and easily removable

I don't know why I didn't think of this but it's a really good idea for test purposes with shallow screws or nuts. This was why I started this thread. Thank ya!

 

[hispls 5,000+ posts]

If those subs are designed for ported box they'll sound garbage sealed, but if you insist, just get a piece of MDF or ply to cover the port, 5$ worth of foam weatherstripping and screw it down tight. You're way over-thinking this.

 

[fixinit]

If those subs are designed for ported box they'll sound garbage sealed, but if you insist, just get a piece of MDF or ply to cover the port, 5$ worth of foam weatherstripping and screw it down tight. You're way over-thinking this.

Not over-thinking: See attached pic for manufacturer recommendations.

View attachment 26555770

 

[Boomin_tahoe 5,000+ posts]

I subjectively disagree that a pre-built ported has no chance of sounding good. The dynamics of my car make for an extremely forgiving audio experience as long as system tuned, can sound good with some less expensive equipment.


The Mofo has loosened a tad and it's surprisingly been a great bargain tonality-wise. I based that purchase off Amazon, SonicE. and subwoofer website reviews. For $115 I'm not sure if I could have gotten a driver that would match the load from my amp and its "showoff" capability. The prefab is alright but could have gone bigger. I didn't risk it because I needed something lighter, front-ported and able to fit in a particular area of my trunk. There's a specific place in my trunk where this type of box creates an enjoyable soundstage in the driver's seat. It hits a little muddy with some songs but clean, deep and loud with others. This is why....

I'll be working on a plug for the surface-level port to hear how it sounds "sealed". I think an interchangeable prefabbed ported box with custom put-or-pull vent seal is a creative and smart way to approaching a low cost system that might kick some serious butt.

You just opened up a can of worms with that sentence. Nobody knows any better then us experienced guys with quite a lot of exp behind us AND have exp with either prefab or a custom enclosure. Sure for the "average joe" sub mainstream it might sound ok but don't ya want it to sound better> I mean would you buy a prefab sub enclosure for a say 15" NSV.2 Sundown Audio sub? No, because it prob tuned too high for the sub to begin with, NO bracing involved in prefab enclosures EVER, prob built too small, etc.

 

[hispls 5,000+ posts]

Not over-thinking: See attached pic for manufacturer recommendations.
View attachment 26555770

f3 of 54hz will sound garbage.

 

[Boomin_tahoe 5,000+ posts]

Even 37Hz is too high imo.

 

[Jeffdachef 5,000+ posts]

Even 37Hz is too high imo.

37 is completely fine. Plenty of people prefer 35 to 40hz tuning (depending on the sub) over low tuned boxes. I actually want to tune mines higher. 20hz range Lows is nice but I want collapsed lungs.

 

[Boomin_tahoe 5,000+ posts]

37 is completely fine. Plenty of people prefer 35 to 40hz tuning (depending on the sub) over low tuned boxes. I actually want to tune mines higher. 20hz range Lows is nice but I want collapsed lungs.

I'm good with 30Hz. I don't listen to any rebassed decaf or any of that stuff so I don't need to tune any lower. It does play upper freq just fine tho. Just wish I had a tone CD to test.

Btw, did you mean you DIDN'T want your lungs to collapse?!

 

[Jeffdachef 5,000+ posts]

I'm good with 30Hz. I don't listen to any rebassed decaf or any of that stuff so I don't need to tune any lower. It does play upper freq just fine tho. Just wish I had a tone CD to test.
Btw, did you mean you DIDN'T want your lungs to collapse?!

No i want collapsed lungs. 20hz wont do that, its hella windy.

You would honestly gain a lot musically and output wise tuned higher if you dont listen to decaf. 33/35hz tuning would make a big difference over 30 for normal music.

32hz tuning and below is straight up built for decaf imo.

 

[Boomin_tahoe 5,000+ posts]

No i want collapsed lungs. 20hz wont do that, its hella windy.
You would honestly gain a lot musically and output wise tuned higher if you dont listen to decaf.

Oh...you want collapse lungs, start smoking. Hell stand a cinder block on your chest and while your laying on your back have someone smash it with a sledgehammer.

I have several songs that play pretty low....so I'm good with it.

 

[Hertz Mafia]

No i want collapsed lungs. 20hz wont do that, its hella windy.
You would honestly gain a lot musically and output wise tuned higher if you dont listen to decaf. 33/35hz tuning would make a big difference over 30 for normal music.

32hz tuning and below is straight up built for decaf imo.

A 20hz at 160 and if feels like your whole body will collapse/explode ... a 160db at 40hz will make it hard to swallow but that's about it.

 

[Jeffdachef 5,000+ posts]

A 20hz at 160 and if feels like your whole body will collapse/explode ... a 160db at 40hz will make it hard to swallow but that's about it.

loudest i've heard low is a 154 at 25hz and it didnt phase me. Sh*t affects my body differently. I've also heard a 149-150 that is utterly painful compared to a 163db setup. Most of everyone agrees with me that have had both demos. Like literally **** this fking really hurts bad! feel. Bigger 160+ setups never even got me close to tapping as that setup.