Sub for a supercap

[rjppunk]

dont fight over brand names in this dudes advice forum, I'll open a "why audiobahn does/doesnt suck if you want to figure it out. and im still waiting to see 4x4's rebuttal

 

[4x4fun]

now against stuffing your box,

first you can tune your sub for desired sound by changing the internal volume of the box. and basically what happens is the the smaller the box you have creates more pressure inside the box when the sub hits. you sub when fired has a certain amount of displacement. like a piston. when its put into an enclosed box now create a back pressure on the sub. because when it hits the sub pushing back, now has to fight the build up of pressure in the box. so the smaller the box to start with the more pressure you build up. when the there in a small enclosure like that the having more pressure in the box make the air more dense, allowing the sound waves to travel faster thur the air. the pressure also stops, the sub from vibrating as much because every back stroke in the displacement is being fought, so a smaller box gives a nice clean sharp thump.

and the bigger the sealed box the less sharp and more vibration you will hear.

when subs are fired the friction with air, the flexing of material, and electrical heat loss all start to build up heat inside the box. the smaller the box the less air there is to dissipate heat.

now for the BS of filling a box.
when you fill a small box. one you take away more internal volume, and your all ready short in that department.
the filler stops the air from moving around so fast kinda trapping it closer to the sub. this casue two bad things to happen. one makes even more less air for heat to dissipate into, and what little air is there is now hot and trapped next to the sub. which is bad. they say that the filler lets the sound bounce around and lets it change its harmonic freq. thats true it does, it take away the "thump" that a small box gives you. and lets you only hear the freq, but it also mutes the sub so it really only tricks your ear into thinking the sub is louder the sub is actually working harder to put the same amount of DB out into the air. and that doesn't help the heat issue at all.

 

[4x4fun]

dont fight over brand names in this dudes advice forum, I'll open a "why audiobahn does/doesnt suck if you want to figure it out. and im still waiting to see 4x4's rebuttal

lol hahahah

 

[4x4fun]

we used to do just the opposite in the old days before custom sized boxes were around. when a box was to big we used to add a lil fluff to take away from the internal volume.

 

[rjppunk]

I've always stuffed boxes regardless of their size something my "audio mentor" taught me. If I could properly explain it I'd challenge the rebuttal.

 

[RangerFabWorks]

dont fight over brand names in this dudes advice forum, I'll open a "why audiobahn does/doesnt suck if you want to figure it out. and im still waiting to see 4x4's rebuttal

i dont see anyone fighting. im def. not. i just made my point and left. no fighting needed.

 

[4x4fun]

I've always stuffed boxes regardless of their size something my "audio mentor" taught me. If I could properly explain it I'd challenge the rebuttal.

i hear it all the time. and it can do some good. in the right applications. but thats few and far between and you have to be aware of what it can do to the drivers. that "trick works alot better in bandpass boxes and vented boxes, and when its done correctly its normally glued to one and only one side of the box. so you get a sheat like 14xwhatever a 1 to 1.5 inches thick

 

[coffee]

This is how I mounted my 12" RF Punch. Not vented and does very well for me. I still can put stuff in the floor since everything is on the hump.

 

[pottro563]

if you want a good bang for your buck honestly alpine type r subs are cheap and can get loud easily, only downfall is they dont have recone kits. they are cheap subs though and can get loud. I would stay away from audiobahn and anything sony. i personally have an alpine deck custom built box holding a single JL audio w3. i prefer JL audio or boston for single sub setups. i guess i would just go to audio shop and hear a couple different setups and see which one you like. then go to caraudio.com and pick from a site listed to get a killer deal.

 

[baxtej44]

This is how I mounted my 12" RF Punch. Not vented and does very well for me. I still can put stuff in the floor since everything is on the hump.

that's some really nice work.. is that fiberglass work?

 

[coffee]

Thanks,

Yep, fiberglass. That's my first try before I do a console.