Hellbilly429 Posted December 5, 2012 Author Report Share Posted December 5, 2012 So then does my box look about ideal size and port area-wise for 600Watts RMS? I will be running a Pioneer GM-D8500M which is rated at 600 watts rms @ 2ohms. Also, question on painting the box, anybody got opinions on painting the exterior with rubberized undercoating? Would it cancel out some of my sound or just increase the output from the speaker and the port? 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
Hellbilly429 Posted December 5, 2012 Author Report Share Posted December 5, 2012 Ok, just got everything down on paper and realised I screwed up on the port, forgot to change the height of the port from the first box since I changed the overall height of the second box, so I just did the re-calculating and was actually able to get a little lower tuning and get the port area just shy of 15" per foot^3. 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
Hellbilly429 Posted December 6, 2012 Author Report Share Posted December 6, 2012 Ok, plans are to pick up the supplies Saturday after work and start building this bad boy. Any last opinions are still appreciated, I really just want to make sure I do this right and get the most performance out of this sub for my particular application. 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
Hellbilly429 Posted December 9, 2012 Author Report Share Posted December 9, 2012 Picked up a 4x8 sheet of 3/4 mdf today and got the cutting done, then I realised that Torres calculator fucked me as i forgot it wasn't calculating the port into the cut sheet, so I got one side piece I can't use cause it is 3/4" too short, but the rest I got all figured out so I will finish cutting tomorrow after work and will hopefully start on the assembly. I never knew there was so much math involved in building a box... Lesson learned! 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
321slapinbass Posted December 9, 2012 Report Share Posted December 9, 2012 Picked up a 4x8 sheet of 3/4 mdf today and got the cutting done, then I realised that Torres calculator fucked me as i forgot it wasn't calculating the port into the cut sheet, so I got one side piece I can't use cause it is 3/4" too short, but the rest I got all figured out so I will finish cutting tomorrow after work and will hopefully start on the assembly. I never knew there was so much math involved in building a box... Lesson learned! lol i was that kid in math class saying "when will i use this shit" and before i knew it i was using all that stuff i learned thinking about sub boxes everyday. 2000 Dodge Durango Subs - (2) SKAR VVX 15 D2's Box - 7.2 ft^3 @ 33hz, 120 in of port Sub amp - Digital Designs M2 @ .5 ohm Mids + Highs - PRV Audio Mids + Highs amp - Hifonics 2000.4 Headunit - Alpine CDE-100 Equalizer - Clarion EQS746 Batteries - Mopar group 27 + (2) C&D 52ah Wiring - 1/0 BIG 3, (2) runs 1/0 Alternator - Singer 250A 147.79 dB @ 35hz - burp - sealed on dash 147.47 dB @ 35hz - music - sealed on dash YOUTUBE: http://www.youtube.com/user/321slapinBass/videos Link to comment Share on other sites More sharing options...
Hellbilly429 Posted December 10, 2012 Author Report Share Posted December 10, 2012 Yeah, I hear ya, now I want to smack anybody that says building boxes are easy, stupid bastards, lol. Of course building boxes are easy, but building properly tuned and sealed boxes is not. So i got some more work done on the box after work today, for the most part things are lining up, lol, few of the cuts were a little angular for some reason, idk how but hey, it works and it's going together and it's fixable so not too worried. So far I got everything together but the port/port extension and the top sheet. I also wanted to know if anyone was for sure that the SA12 has a true cutout diameter of 11 1/8" because I wanted to know if I could cut the hole out before the sub gets here, but I don't want to cut it and then go "Oh Shit" when the sub gets here and I found out that the hole I cut is too big 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
LoudPursuit Posted December 10, 2012 Report Share Posted December 10, 2012 Tip on getting subs into a trunk of a cobalt. Load from the front, take out the bottom of the seat 14.5" is the exact height where you will have no issues getting it in. Headunit: Pioneer avh-1400dvd Subs: DC Audio lvl 4 18 with carbon fibre dustcaps Sub amp: Rockford T2500-1bdcp Mids & Highs: RF Prime 5.25's + Focal Polyglass 6.5s Highs Amp: RF T600-4 Batts: XS Power D975, XS Power D925 Alt: Mechman 270a Wires: Shok Industries 1/0, RF RCA's and Shok 12/8 gauge speaker wires Deadening: Second Skin TEAM DC TEAM SHOK Link to comment Share on other sites More sharing options...
LoudPursuit Posted December 10, 2012 Report Share Posted December 10, 2012 15 inches will work like this as well. Headunit: Pioneer avh-1400dvd Subs: DC Audio lvl 4 18 with carbon fibre dustcaps Sub amp: Rockford T2500-1bdcp Mids & Highs: RF Prime 5.25's + Focal Polyglass 6.5s Highs Amp: RF T600-4 Batts: XS Power D975, XS Power D925 Alt: Mechman 270a Wires: Shok Industries 1/0, RF RCA's and Shok 12/8 gauge speaker wires Deadening: Second Skin TEAM DC TEAM SHOK Link to comment Share on other sites More sharing options...
Hellbilly429 Posted December 11, 2012 Author Report Share Posted December 11, 2012 Ah, appreciate the tips man, must be you either own/owned a cobalt or have worked on one before. Port's together, didn't have much time to do anything else with the box tonight but I have tomorrow off, so I hope to hammer out a lot of it tomorrow. Goal is to build the best quality box I possibly can, don't care if this is my first box or not, I want it done right. 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
LoudPursuit Posted December 11, 2012 Report Share Posted December 11, 2012 I own a pursuit (same engine, same body, different badges.) your progress looks good. If you need any help with anything cobalt related feel free to hit me up. I have spent countless hours working on my car and have accumulated a lot of resources. Headunit: Pioneer avh-1400dvd Subs: DC Audio lvl 4 18 with carbon fibre dustcaps Sub amp: Rockford T2500-1bdcp Mids & Highs: RF Prime 5.25's + Focal Polyglass 6.5s Highs Amp: RF T600-4 Batts: XS Power D975, XS Power D925 Alt: Mechman 270a Wires: Shok Industries 1/0, RF RCA's and Shok 12/8 gauge speaker wires Deadening: Second Skin TEAM DC TEAM SHOK Link to comment Share on other sites More sharing options...
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