Markous Posted April 11, 2013 Report Share Posted April 11, 2013 (edited) Hello SMD Forums! I am looking for some opinions on a ported box i designed for a SA-8 D4 V2 subwoofer. It will be powered for now with an Alpine MRP-M500 pushing 500w @ 2ohms but from what i've read i should get something with a better sub-sonic filter this amp only has a 15 hz filter I have an area about 21x13x13 to use and this is the box i would like to put it in. It's about 0.62 ft cubed after sub & port displacement if i did my math right. I don't want or need it to hit the super low gut wrenching bass i just want it to hit a little lower than the Alpine 12" Type S in a sealed bassworx box i am currently using. What do you folks think? given the criteria i have, is this what i should be putting it in? Thank you advance for suggestions and opinions. Edited April 11, 2013 by Markous 1 Quote '07 Ford Ranger - DM-608 I E700.4 I SA-CX6.5 v2 I SAZ-1500D 15th (x2) I Zv6 12" D1 I SB500-34 I JP40 I On 5/21/2015 at 7:07 PM, boom50cal said: of course he gives no fucks. it's a ford ranger. only bad mother fuckers drive ford rangers Link to comment Share on other sites More sharing options...
Chris Hammer Posted April 11, 2013 Report Share Posted April 11, 2013 Ditch the RE box calculator and download Torres calculator. Much better IMO. The Re one is off every time I have checked it. Quote MY BUILD *****http://tinyurl.com/gmcbuild***** Vehicles 2005 GMC Canyon CB1000r - Currently where any future funds are going. (exhasut,bazzaz, ohlins shock, screen, etc.) crf250r - Used to be race bike..now I just trail ride..practice at the track on it. CH80 - Daily beater (when nice weather)best 150$ ever spent. 100+mpg Sold to: Skullz - pstone11 - Leo1103 - Volvo 63' - pavelpardo - imnew59585 Shower farts still piss me off.I think theyre pretty neat. When the water runs down your crack as you let one out... its like shitting in a crockpot. Link to comment Share on other sites More sharing options...
Bradprobert Posted April 11, 2013 Report Share Posted April 11, 2013 Are those the max dimensions you have? Quote [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
Markous Posted April 11, 2013 Author Report Share Posted April 11, 2013 (edited) Ditch the RE box calculator and download Torres calculator. Much better IMO. The Re one is off every time I have checked it. Thank you for the suggestion. Wow! quite the difference when i plug the RE numbers in to Torres. ETA - Those aren't my max numbers just my ideal ones, trying to get this to fit behind my seat in my ext. cab Ranger Edited April 11, 2013 by Markous Quote '07 Ford Ranger - DM-608 I E700.4 I SA-CX6.5 v2 I SAZ-1500D 15th (x2) I Zv6 12" D1 I SB500-34 I JP40 I On 5/21/2015 at 7:07 PM, boom50cal said: of course he gives no fucks. it's a ford ranger. only bad mother fuckers drive ford rangers Link to comment Share on other sites More sharing options...
Bradprobert Posted April 11, 2013 Report Share Posted April 11, 2013 here is my suggestion. box internal net volume of .75 port height 7 in port width of 2 in port length of 37.8 in if its not possible to squeeze this in your max dimensions i will design a different with an aeroport. just let me know! Quote [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
Markous Posted April 11, 2013 Author Report Share Posted April 11, 2013 First a thank you to all who have replied so far. I would like to keep the dimensions under the 21x13x13 i am allowing myself with a slot port tuned to aboot (Canadian joke there, eh?) 38 hz. Quote '07 Ford Ranger - DM-608 I E700.4 I SA-CX6.5 v2 I SAZ-1500D 15th (x2) I Zv6 12" D1 I SB500-34 I JP40 I On 5/21/2015 at 7:07 PM, boom50cal said: of course he gives no fucks. it's a ford ranger. only bad mother fuckers drive ford rangers Link to comment Share on other sites More sharing options...
Bradprobert Posted April 11, 2013 Report Share Posted April 11, 2013 I'm just curious why 38? Quote [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
Markous Posted April 11, 2013 Author Report Share Posted April 11, 2013 I'm just curious why 38? Could not give you an honest answer. I basically just went a little lower than my sealed 12" is supposed to do and the suggestion of 35 on the website. I figured that would give me a decent balance of SQ and SPL. Never built a ported box before, this is all new to me. Quote '07 Ford Ranger - DM-608 I E700.4 I SA-CX6.5 v2 I SAZ-1500D 15th (x2) I Zv6 12" D1 I SB500-34 I JP40 I On 5/21/2015 at 7:07 PM, boom50cal said: of course he gives no fucks. it's a ford ranger. only bad mother fuckers drive ford rangers Link to comment Share on other sites More sharing options...
STEALTH808 Posted April 12, 2013 Report Share Posted April 12, 2013 i would go like 1 cube net... drop tuning a tad. closer to 35hz. 2 Quote TEAM SUNDOWN HAWAIIHAWAIICARAUDIO.NET 150Db Club 160Db club in the future I see krakin as a threat Link to comment Share on other sites More sharing options...
Bradprobert Posted April 12, 2013 Report Share Posted April 12, 2013 i would go like 1 cube net... drop tuning a tad. closer to 35hz. yes. most sq guys shoot for about a 29Hz tuning spl guys shoot for the peak of the car(usually between 42 and 60). from my experience with this sub and what you want i would go with 35Hz also. 1 Quote [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
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