satish1015 Posted September 23, 2012 Report Share Posted September 23, 2012 hey, I know that it is recommended 1.5ft3 for a ported build for each sub.. that would put me at about 3ft3 for the total box.. i was thinking of building a box that is about 4.5-5ft3 because i want to hit the lows louder and i have space for the box.. ill be throwing about 1700w at 1ohm to each sub.. anyone know what would happen if i give it this much space? like will the sub get damaged? Quote 2008 BMW 550i M Sport Build coming soon! 2000 Volvo s40 1.9TPioneer DVD navigation head unitO2 audio performance mid range speakers2 Crescendo PWX-6 Pro Mid Range Speakers2 Crescendo PWX-8 Pro Mid Range Speakers4 Selenium ST200 Super TweetersHifonics ZRX2000.4 Amplifier2- 12 inch DC Audio Level 4 m2Hifonics Brutus BXI-1610D Amplifier2 KinetiK HC1400R- Secondary BatteriesKinetik HC600- Secondary BatteryKnukonceptz 1/0 gauge big 3 upgrade Link to comment Share on other sites More sharing options...
TylerParrish Posted September 23, 2012 Report Share Posted September 23, 2012 You should be happy with the lows from the recommended box size, if built correctly that is. Besides, It will be 3 cu ft after displacement, it could be about 4 cu ft after port, bracing, and subs. Just tune low if you want lows. The bigger the box, the lower the power handling. Quote What the f**k is an appropriate signature supposed to look like?2013 Kia Forte Koup Pioneer AVH-X4600BT iDMax 12 DD M1c @ 2 ohms Rockford Prime 200.2 Pioneer 6.75" Comp Set XS S3400, D2700 Project DB Battery Terminals Axxess ASWC Stinger HPM Everywhereeee 90 Sq. Ft. of Stinger Roadkill Stock Alt Stuff To Come Sundown X-12 New Amp New Comps 4 Channel Amp My Current Build: http://www.stevemeadedesigns.com/board/topic/167462-13-kia-forte-koup-dd-setup/ My Old Build: http://www.stevemead..._+2000 +mustang Avatar Courtesy of SnowDrifter Link to comment Share on other sites More sharing options...
satish1015 Posted September 23, 2012 Author Report Share Posted September 23, 2012 What exactly is after displacement? Wouldn't port bracing and the subs lower my cu ft because it's taking up space? And so you're saying that I should lower my power with a bigger box? Or does it not matter? Quote 2008 BMW 550i M Sport Build coming soon! 2000 Volvo s40 1.9TPioneer DVD navigation head unitO2 audio performance mid range speakers2 Crescendo PWX-6 Pro Mid Range Speakers2 Crescendo PWX-8 Pro Mid Range Speakers4 Selenium ST200 Super TweetersHifonics ZRX2000.4 Amplifier2- 12 inch DC Audio Level 4 m2Hifonics Brutus BXI-1610D Amplifier2 KinetiK HC1400R- Secondary BatteriesKinetik HC600- Secondary BatteryKnukonceptz 1/0 gauge big 3 upgrade Link to comment Share on other sites More sharing options...
CJ18 Posted September 24, 2012 Report Share Posted September 24, 2012 I would stick with the recommended airspace. Quote Link to comment Share on other sites More sharing options...
TylerParrish Posted September 24, 2012 Report Share Posted September 24, 2012 What exactly is after displacement? Wouldn't port bracing and the subs lower my cu ft because it's taking up space? And so you're saying that I should lower my power with a bigger box? Or does it not matter? It means everything is gonna take up more space than just 3 cu ft. Yes, all that is going to lower your cubic feet. I suggest getting friendly with Torres and mocking up a few designs, easiest way to know the volume of the box before and after displacement. Quote What the f**k is an appropriate signature supposed to look like?2013 Kia Forte Koup Pioneer AVH-X4600BT iDMax 12 DD M1c @ 2 ohms Rockford Prime 200.2 Pioneer 6.75" Comp Set XS S3400, D2700 Project DB Battery Terminals Axxess ASWC Stinger HPM Everywhereeee 90 Sq. Ft. of Stinger Roadkill Stock Alt Stuff To Come Sundown X-12 New Amp New Comps 4 Channel Amp My Current Build: http://www.stevemeadedesigns.com/board/topic/167462-13-kia-forte-koup-dd-setup/ My Old Build: http://www.stevemead..._+2000 +mustang Avatar Courtesy of SnowDrifter Link to comment Share on other sites More sharing options...
satish1015 Posted September 24, 2012 Author Report Share Posted September 24, 2012 I would stick with the recommended airspace. I guess what i'm trying to find out is why the recommended airspace is recommended lol What exactly is after displacement? Wouldn't port bracing and the subs lower my cu ft because it's taking up space? And so you're saying that I should lower my power with a bigger box? Or does it not matter? It means everything is gonna take up more space than just 3 cu ft. Yes, all that is going to lower your cubic feet. I suggest getting friendly with Torres and mocking up a few designs, easiest way to know the volume of the box before and after displacement. thanks.. that's what i thought.. i was trying to use Torres.. i think i kind of got the hang of it.. i guess i could use the extra space i have and build an amp rack or something Quote 2008 BMW 550i M Sport Build coming soon! 2000 Volvo s40 1.9TPioneer DVD navigation head unitO2 audio performance mid range speakers2 Crescendo PWX-6 Pro Mid Range Speakers2 Crescendo PWX-8 Pro Mid Range Speakers4 Selenium ST200 Super TweetersHifonics ZRX2000.4 Amplifier2- 12 inch DC Audio Level 4 m2Hifonics Brutus BXI-1610D Amplifier2 KinetiK HC1400R- Secondary BatteriesKinetik HC600- Secondary BatteryKnukonceptz 1/0 gauge big 3 upgrade Link to comment Share on other sites More sharing options...
CJ18 Posted September 24, 2012 Report Share Posted September 24, 2012 Because that is the optimal airspace for the given driver on rated power. If you want to over power a driver, then you need to take away airspace to help the driver be able to handle the power. If you want to run less power, then you can add airspace to make the driver more efficient with the power that you have. If your box is too big on rated power or more, you are going to have problems. Quote Link to comment Share on other sites More sharing options...
satish1015 Posted September 24, 2012 Author Report Share Posted September 24, 2012 Because that is the optimal airspace for the given driver on rated power. If you want to over power a driver, then you need to take away airspace to help the driver be able to handle the power. If you want to run less power, then you can add airspace to make the driver more efficient with the power that you have. If your box is too big on rated power or more, you are going to have problems. O i see what you mean now.. that's good to know! thanks for the help.. so if i give the woofers more power but in the smaller box they would play the same lows as a bigger box with lower power? Quote 2008 BMW 550i M Sport Build coming soon! 2000 Volvo s40 1.9TPioneer DVD navigation head unitO2 audio performance mid range speakers2 Crescendo PWX-6 Pro Mid Range Speakers2 Crescendo PWX-8 Pro Mid Range Speakers4 Selenium ST200 Super TweetersHifonics ZRX2000.4 Amplifier2- 12 inch DC Audio Level 4 m2Hifonics Brutus BXI-1610D Amplifier2 KinetiK HC1400R- Secondary BatteriesKinetik HC600- Secondary BatteryKnukonceptz 1/0 gauge big 3 upgrade Link to comment Share on other sites More sharing options...
CJ18 Posted September 24, 2012 Report Share Posted September 24, 2012 Don't worry about airspace for the lows. If you want to play low then tune low. Quote Link to comment Share on other sites More sharing options...
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