sbakken22 Posted April 28, 2015 Report Share Posted April 28, 2015 Hey! I have 2 pioneer ts-w3003d4 subs and i was wondering about a few things! I now have a ported box with 1 chamber and a square port tuned at 31 hz and 3,624 ft3 (102l). The bass is rally lound and feels good at songs with low frequenzy bass, but when i play songs that have a bass with a faster higher frequenzy the bass almost dissapears. is this a tuning problem that I could solve by building a new envclosure? I was thinking about a new enclosure with 2 chambers at 1.5 ft3 (45l) each and tune it to 38Hz. Is this a good choise or will this solve nothing? I still want to maintain hard bass at low frequenzies but i want to still be able to play faster songs... The enclusure i have now uses backprezure from one sub, so i was wondering how this will change sound if I seperate the subs into 2 chambers? Any answer would be great! Link to comment Share on other sites More sharing options...
Quintine Posted April 28, 2015 Report Share Posted April 28, 2015 I have these currently and from the messing around with them, not a super fan in a plain old vented enclosure but more for the opposite reason you are having. Too much up high. They have a really nice response in a well designed 4th or 6th order. How low do you want to play with them? Also what are your crossovers set at for your subs? If you leave it till the last minute, it will only take a minute. Build Log - 4x12's Trunk Firing 6th Link to comment Share on other sites More sharing options...
Andrew Storlie Posted April 28, 2015 Report Share Posted April 28, 2015 tuning to a higher frequency will help with the higher bass, but once you tune higher... you're low end tends to roll of really fast. subs in 2 or 1 chamber doesn't really matter as long as both chambers are the same size and tuning. you said it uses back-pressure from 1 sub? do you mean that only 1 sub is powered and the other is a passive (non-powered) subwoofer? what speakers do you have in your doors, your main speakers.... Link to comment Share on other sites More sharing options...
sbakken22 Posted April 28, 2015 Author Report Share Posted April 28, 2015 I have these currently and from the messing around with them, not a super fan in a plain old vented enclosure but more for the opposite reason you are having. Too much up high. They have a really nice response in a well designed 4th or 6th order. How low do you want to play with them? Also what are your crossovers set at for your subs? Thanks for the answer! By crossover you mean the low pass filter? in that case it is set at 80Hz, and subsonic filter(high pass) is set to 20Hz. i want to be able to at least make the car shake at low bass like 30Hz and down but still have power for 40-70Hz,,, think this may be hard as it is limited what you can do with 1 set of simular subs. Link to comment Share on other sites More sharing options...
sbakken22 Posted April 28, 2015 Author Report Share Posted April 28, 2015 tuning to a higher frequency will help with the higher bass, but once you tune higher... you're low end tends to roll of really fast. subs in 2 or 1 chamber doesn't really matter as long as both chambers are the same size and tuning. you said it uses back-pressure from 1 sub? do you mean that only 1 sub is powered and the other is a passive (non-powered) subwoofer? what speakers do you have in your doors, your main speakers.... By backpressure i mean that both subs are active and playing simular, but the air from the rear sub has to flow past the front sub to get out, so there for there is created a backpressure.. Atleat that was what I was told by a friend who knows alot abut this stuff... On the image you can see how the box looks, the gray lines to the top right represents the port walls on the inside The other speakers in my car are only frontspeakers... (cant remember the name right now) but they are high end 6.5" componants speakers that run all the way down to 50Hz and is rated for 100Wrms each... I run something like 60-70Wrms to each now, but I can up this if I want to.... Link to comment Share on other sites More sharing options...
Andrew Storlie Posted April 28, 2015 Report Share Posted April 28, 2015 tuning to a higher frequency will help with the higher bass, but once you tune higher... you're low end tends to roll of really fast. subs in 2 or 1 chamber doesn't really matter as long as both chambers are the same size and tuning. you said it uses back-pressure from 1 sub? do you mean that only 1 sub is powered and the other is a passive (non-powered) subwoofer? what speakers do you have in your doors, your main speakers.... By backpressure i mean that both subs are active and playing simular, but the air from the rear sub has to flow past the front sub to get out, so there for there is created a backpressure.. Atleat that was what I was told by a friend who knows alot abut this stuff... On the image you can see how the box looks, the gray lines to the top right represents the port walls on the inside The other speakers in my car are only frontspeakers... (cant remember the name right now) but they are high end 6.5" componants speakers that run all the way down to 50Hz and is rated for 100Wrms each... I run something like 60-70Wrms to each now, but I can up this if I want to.... a very common mistake... the air doesnt have to "flow" past the first sub, if both subs are playing together, then both subs are pressurizing the box at the same time. having both in 1 chamber or each in its own chamber wont matter. in some cases 1 sub can have 2 chambers lol. what matters is the port area and the port length. those will determine your tuning. im currently working on designing a box that is 3 cubic feet and tuned all the way down to 24.9hz for a single 12. for your door speakers, i would keep the cross at about 80hz... going to low can really damage the speakers. do you have all the tools and stuff to make a box by hand? Link to comment Share on other sites More sharing options...
Quintine Posted April 29, 2015 Report Share Posted April 29, 2015 Well if you wanna get good output in such a wide range you will probably have to go for quite a large 6th order. Its what is working quite well for me, (If i had more room I would of made it larger. A series tuned box3 Cubes with 2x 22"x4" Aero ports into a 2 cube box with 4x 15"x4" Aero ports should give you the bandwidth you require. However the box is quite large and you may run into space issues. Should play down to the mid 20's and have solid output from 25-90ish If you leave it till the last minute, it will only take a minute. Build Log - 4x12's Trunk Firing 6th Link to comment Share on other sites More sharing options...
Joe X Posted April 29, 2015 Report Share Posted April 29, 2015 Hey! I have 2 pioneer ts-w3003d4 subs and i was wondering about a few things! I now have a ported box with 1 chamber and a square port tuned at 31 hz and 3,624 ft3 (102l). The bass is rally lound and feels good at songs with low frequenzy bass, but when i play songs that have a bass with a faster higher frequenzy the bass almost dissapears. is this a tuning problem that I could solve by building a new envclosure? I was thinking about a new enclosure with 2 chambers at 1.5 ft3 (45l) each and tune it to 38Hz. Is this a good choise or will this solve nothing? I still want to maintain hard bass at low frequenzies but i want to still be able to play faster songs... The enclusure i have now uses backprezure from one sub, so i was wondering how this will change sound if I seperate the subs into 2 chambers? Any answer would be great! What vehicle? Pics? Link to comment Share on other sites More sharing options...
sbakken22 Posted April 29, 2015 Author Report Share Posted April 29, 2015 tuning to a higher frequency will help with the higher bass, but once you tune higher... you're low end tends to roll of really fast. subs in 2 or 1 chamber doesn't really matter as long as both chambers are the same size and tuning. you said it uses back-pressure from 1 sub? do you mean that only 1 sub is powered and the other is a passive (non-powered) subwoofer? what speakers do you have in your doors, your main speakers.... By backpressure i mean that both subs are active and playing simular, but the air from the rear sub has to flow past the front sub to get out, so there for there is created a backpressure.. Atleat that was what I was told by a friend who knows alot abut this stuff... On the image you can see how the box looks, the gray lines to the top right represents the port walls on the inside The other speakers in my car are only frontspeakers... (cant remember the name right now) but they are high end 6.5" componants speakers that run all the way down to 50Hz and is rated for 100Wrms each... I run something like 60-70Wrms to each now, but I can up this if I want to.... a very common mistake... the air doesnt have to "flow" past the first sub, if both subs are playing together, then both subs are pressurizing the box at the same time. having both in 1 chamber or each in its own chamber wont matter. in some cases 1 sub can have 2 chambers lol. what matters is the port area and the port length. those will determine your tuning. im currently working on designing a box that is 3 cubic feet and tuned all the way down to 24.9hz for a single 12. for your door speakers, i would keep the cross at about 80hz... going to low can really damage the speakers. do you have all the tools and stuff to make a box by hand? The speakers are rated for 50Hz! sorry forgot to say that I do not have the best tools, but I have different electrical saws and stuff like that and the first box I made thought me alot... Doing straight cuts for the plates I can do easily but when it comes to angled and bends I have to do the on freehand with a saw. So I have some tools, but not everything I need for a crazy enclosure with lots of angles and small fidely parts Link to comment Share on other sites More sharing options...
sbakken22 Posted April 29, 2015 Author Report Share Posted April 29, 2015 Hey! I have 2 pioneer ts-w3003d4 subs and i was wondering about a few things! I now have a ported box with 1 chamber and a square port tuned at 31 hz and 3,624 ft3 (102l). The bass is rally lound and feels good at songs with low frequenzy bass, but when i play songs that have a bass with a faster higher frequenzy the bass almost dissapears. is this a tuning problem that I could solve by building a new envclosure? I was thinking about a new enclosure with 2 chambers at 1.5 ft3 (45l) each and tune it to 38Hz. Is this a good choise or will this solve nothing? I still want to maintain hard bass at low frequenzies but i want to still be able to play faster songs... The enclusure i have now uses backprezure from one sub, so i was wondering how this will change sound if I seperate the subs into 2 chambers? Any answer would be great! What vehicle? Pics? It's a BMW 3-series 316i touring facelift 03 model! Do not have the vehicle close to me now so pics can be a little hard but there is alot of trunck space Link to comment Share on other sites More sharing options...
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