Page 4 of 6
Audio/Video \ finally finished my box...tell me what you thinkfinally finished my box...tell me what you think
views 763
replies 53
following 23
granth
+1y
Originally posted by ShavedClean96Accord
Originally posted by Low_SST
Originally posted by FAUBS
Looks good man, im sure your sick of hearing, use MDF but if you ever rebuild, make sure to use MDF and put a long as hell slot port out the top of that thing. I think you would be very suprised on how much louder you would be than just a plain old sealed box.its only +3db at the tuning frequency plus i doubt he has enough space behind the magnet for a full slot port.
Adding 3db is DOUBLING what your previous attempt was...
i dont know how true this holds, but i believe 5db is doubling it to the fact the ear can truly tell its "double". ur box does look good man, but DO use MDF or even HDF (more expensive) to built it.im sure u know to predrill and gorilla glue it.
Originally posted by Low_SST
Originally posted by FAUBS
Looks good man, im sure your sick of hearing, use MDF but if you ever rebuild, make sure to use MDF and put a long as hell slot port out the top of that thing. I think you would be very suprised on how much louder you would be than just a plain old sealed box.its only +3db at the tuning frequency plus i doubt he has enough space behind the magnet for a full slot port.
Adding 3db is DOUBLING what your previous attempt was...
i dont know how true this holds, but i believe 5db is doubling it to the fact the ear can truly tell its "double". ur box does look good man, but DO use MDF or even HDF (more expensive) to built it.im sure u know to predrill and gorilla glue it.
granth
+1y
Originally posted by ss ten
are you 's talkin about with all of this Hz and Db mumbo jumbo
LOL if ur serious its the output gained at certain tones. its all SPL gibberish that actually DOES mean something.
are you 's talkin about with all of this Hz and Db mumbo jumbo
LOL if ur serious its the output gained at certain tones. its all SPL gibberish that actually DOES mean something.
Low_SST
+1y
Originally posted by ShavedClean96Accord
Originally posted by Low_SST
Originally posted by FAUBS
Looks good man, im sure your sick of hearing, use MDF but if you ever rebuild, make sure to use MDF and put a long as hell slot port out the top of that thing. I think you would be very suprised on how much louder you would be than just a plain old sealed box.its only +3db at the tuning frequency plus i doubt he has enough space behind the magnet for a full slot port.
Adding 3db is DOUBLING what your previous attempt was...
yes i understand that each decibal is exponentially bigger then the next but a +3db gain to most people isn't worth the loss of space in their car unless they intend on competing.
Originally posted by Bolax
Install a 3 inch internal diameter port that extnds 7.5 inches into the box and you will gain the following:
30Hz +1db40Hz +3db50Hz +4db60Hz +4db70Hz +3db80Hz +2db
Also, with the box size that you have you will be achieving max SPL at about 65Hz and you will be at -2db at 40Hz. If you remove one woofer from the box and install the port you will lower the peak frequency to about 48Hz. This will put you at +3db at 40 Hz. From an spl standpoint, this box ported with a woofer removed (and the hole sealed of course) should net a 1 to 2db increase from 35 to 50Hz. Depending on your taste, this might be a better option.
how can you possibly determine an approiate port size when you dont know the volume of the box and or recomended tuning freq. given by the manufacturer.
Originally posted by Low_SST
Originally posted by FAUBS
Looks good man, im sure your sick of hearing, use MDF but if you ever rebuild, make sure to use MDF and put a long as hell slot port out the top of that thing. I think you would be very suprised on how much louder you would be than just a plain old sealed box.its only +3db at the tuning frequency plus i doubt he has enough space behind the magnet for a full slot port.
Adding 3db is DOUBLING what your previous attempt was...
yes i understand that each decibal is exponentially bigger then the next but a +3db gain to most people isn't worth the loss of space in their car unless they intend on competing.
Originally posted by Bolax
Install a 3 inch internal diameter port that extnds 7.5 inches into the box and you will gain the following:
30Hz +1db40Hz +3db50Hz +4db60Hz +4db70Hz +3db80Hz +2db
Also, with the box size that you have you will be achieving max SPL at about 65Hz and you will be at -2db at 40Hz. If you remove one woofer from the box and install the port you will lower the peak frequency to about 48Hz. This will put you at +3db at 40 Hz. From an spl standpoint, this box ported with a woofer removed (and the hole sealed of course) should net a 1 to 2db increase from 35 to 50Hz. Depending on your taste, this might be a better option.
how can you possibly determine an approiate port size when you dont know the volume of the box and or recomended tuning freq. given by the manufacturer.
granth
+1y
--------------------------------------------------------------------------------
Originally posted by ShavedClean96Accord
--------------------------------------------------------------------------------
Originally posted by Low_SST
--------------------------------------------------------------------------------
Originally posted by FAUBS
Looks good man, im sure your sick of hearing, use MDF but if you ever rebuild, make sure to use MDF and put a long as hell slot port out the top of that thing. I think you would be very suprised on how much louder you would be than just a plain old sealed box.
--------------------------------------------------------------------------------
its only +3db at the tuning frequency plus i doubt he has enough space behind the magnet for a full slot port.
--------------------------------------------------------------------------------
Adding 3db is DOUBLING what your previous attempt was...
--------------------------------------------------------------------------------
yes i understand that each decibal is exponentially bigger then the next but a +3db gain to most people isn't worth the loss of space in their car unless they intend on competing.
--------------------------------------------------------------------------------
Originally posted by Bolax
Install a 3 inch internal diameter port that extnds 7.5 inches into the box and you will gain the following:
30Hz +1db
40Hz +3db
50Hz +4db
60Hz +4db
70Hz +3db
80Hz +2db
Also, with the box size that you have you will be achieving max SPL at about 65Hz and you will be at -2db at 40Hz. If you remove one woofer from the box and install the port you will lower the peak frequency to about 48Hz. This will put you at +3db at 40 Hz. From an spl standpoint, this box ported with a woofer removed (and the hole sealed of course) should net a 1 to 2db increase from 35 to 50Hz. Depending on your taste, this might be a better option.
--------------------------------------------------------------------------------
how can you possibly determine an approiate port size when you dont know the volume of the box and or recomended tuning freq. given by the manufacturer.
I agree. You cant tell any type of gains without knowing the resonan frequency of the car and all that. Hell you CANT TELL GAINS PERIOD without a mic. Let alone tell a tuning frequency without the volume noted.
--------------------------------------------------------------------------------
Originally posted by ShavedClean96Accord
--------------------------------------------------------------------------------
Originally posted by Low_SST
--------------------------------------------------------------------------------
Originally posted by FAUBS
Looks good man, im sure your sick of hearing, use MDF but if you ever rebuild, make sure to use MDF and put a long as hell slot port out the top of that thing. I think you would be very suprised on how much louder you would be than just a plain old sealed box.
--------------------------------------------------------------------------------
its only +3db at the tuning frequency plus i doubt he has enough space behind the magnet for a full slot port.
--------------------------------------------------------------------------------
Adding 3db is DOUBLING what your previous attempt was...
--------------------------------------------------------------------------------
yes i understand that each decibal is exponentially bigger then the next but a +3db gain to most people isn't worth the loss of space in their car unless they intend on competing.
--------------------------------------------------------------------------------
Originally posted by Bolax
Install a 3 inch internal diameter port that extnds 7.5 inches into the box and you will gain the following:
30Hz +1db
40Hz +3db
50Hz +4db
60Hz +4db
70Hz +3db
80Hz +2db
Also, with the box size that you have you will be achieving max SPL at about 65Hz and you will be at -2db at 40Hz. If you remove one woofer from the box and install the port you will lower the peak frequency to about 48Hz. This will put you at +3db at 40 Hz. From an spl standpoint, this box ported with a woofer removed (and the hole sealed of course) should net a 1 to 2db increase from 35 to 50Hz. Depending on your taste, this might be a better option.
--------------------------------------------------------------------------------
how can you possibly determine an approiate port size when you dont know the volume of the box and or recomended tuning freq. given by the manufacturer.
I agree. You cant tell any type of gains without knowing the resonan frequency of the car and all that. Hell you CANT TELL GAINS PERIOD without a mic. Let alone tell a tuning frequency without the volume noted.
mtm
+1y
so are you guys telling me this setup wont work or what? i've always had single cab trucks and i've always built boxes that were shaped like a wedge an just barely fit behind the seat without me having to move it up and lost leg room and they have always slammed...
granth
+1y
why would it not work? were just sayin the info this guy gave u is completely irrelevant.
nrskinny
+1y
Originally posted by framedragger
Originally posted by TDP
Originally posted by framedragger
Originally posted by CLNSHVNnDRAGGN
the box was a little too small for them (like .25 ft3 per sub too small) and it ended up blowing them.
i would argue that, that is ont what happened to them. .25 ft^3 didnt blow them, he probably cranked the gains or something else than the box being to small. all a smaller box does is kill the sensitivity of the sub. more power to get as loud as a larger box. most of the time u cant tell much of a difference in .25^3 anyways. but never the less the box size IS important! if those blow i would look into something completely opposite them. You can blow one easier with too little power than you can with to much if your not careful.
not trying to start a debate, but i dont believe under powering ANYTHING will blow it. people just send too little power and expect too much. the only way of damaging a sub with too little power is negligence. and by that i mean.....clipping and just an overall bad setup on the amp.
Thats exactly what I meant. I was just to retarded to put it in those words.
Originally posted by TDP
Originally posted by framedragger
Originally posted by CLNSHVNnDRAGGN
the box was a little too small for them (like .25 ft3 per sub too small) and it ended up blowing them.
i would argue that, that is ont what happened to them. .25 ft^3 didnt blow them, he probably cranked the gains or something else than the box being to small. all a smaller box does is kill the sensitivity of the sub. more power to get as loud as a larger box. most of the time u cant tell much of a difference in .25^3 anyways. but never the less the box size IS important! if those blow i would look into something completely opposite them. You can blow one easier with too little power than you can with to much if your not careful.
not trying to start a debate, but i dont believe under powering ANYTHING will blow it. people just send too little power and expect too much. the only way of damaging a sub with too little power is negligence. and by that i mean.....clipping and just an overall bad setup on the amp.
Thats exactly what I meant. I was just to retarded to put it in those words.
granth
+1y
thats cool man, i kinda figured that, but i just put it in my words to clear the myth up. its just like anything else....if u go cheap and expect a lot...ur gunna break something all the time