Very nice that is the most body flex I think I have seen from 2 type r 12's. I plan on running the same subs and amp combo very soon with a huge ported box in my golf I can't wait.
Actually, to those worried about panel resonance, this can help the frequency response of the enclosure to an extent. But I do agree that this clip does show that it might be a little too much for these drivers. :)
when tuning a ported box it is recommend that you use between 12-16 in^2 per cube for port area because smaller than 12 could give you port noise and could give you hollow bass. he has 50 in ^2 to 6 ft^3 of box which is 8.3 in^2 per cube. which is way too small
@danielhattie2000 This is relative to the type of subwoofer and type of enclosure that you decide to build, but is a great place to start. Port noise accumilates when the pressure in the enclosure exceeds the maximum pressure with 10% distortion. The numbers you used here are a great way to avoid that. Great information for ported enclosures.
@wsmski Like I said in danielhattie's post reply, The port area is relavent information when you talk about the relation between internal volume vs port size. But if you design a box for spl rather than sq, then a 12.5X4 for a single twelve would be a great starting point. Generally, you want the X and Y relation to be within 10% of each other. For instance, a 1" X 10" would be cutting it too close, but 12.5" by 4" is only 3-4% of each other in port area. So, generally, this would be ok.
Decided to start thinking about building a new box on friday night, woke up... said let's do it, and by 5 am sunday morning, we were wakin people up :D
HAHAHAHAH you have to put the camera an inch away from the flex to see it
18abVFL 9 months ago
wow man, that box is monstrous for those :p
check out my video running the same subs on 1500rms in 5 cubic feet at 32hz.
blazinloud 1 year ago
Um yeah you need to brace the shit out of that box lol. You're losing output!!
calvinblinkee 1 year ago 2
I have a 2002 passat but i dont know where to fish my wire from teh battery to the amp , anyone know a good spot?
codsterx 1 year ago
you need to take care of that box flex other than that awesome vid man
bub1360 1 year ago
35hz is the way to go :D Nice work!
DanneVolvo 1 year ago
Very nice that is the most body flex I think I have seen from 2 type r 12's. I plan on running the same subs and amp combo very soon with a huge ported box in my golf I can't wait.
DJMakeWay 1 year ago
nice! im runnin 5 cubic feet @32hz with a shit load of port area on a saz-1500D@1ohm, check er out.
how they holding up?
blazinloud 1 year ago
do you put on for your city, ericsuprah?
low72 1 year ago
That's not 6 cuft after port, but the system seems lacking?
diablo2369 1 year ago
@diablo2369 that is easly a 6 cu ft box dude.
attpureownpk 1 year ago
Actually, to those worried about panel resonance, this can help the frequency response of the enclosure to an extent. But I do agree that this clip does show that it might be a little too much for these drivers. :)
mobileenclosures 1 year ago
yeah take the type R's out and get another peice of mdf and have a double baffle it will help alot and probly give you better bass
jacobryan7 2 years ago
Towards the end it looks like your box is getting some flex.
More bracing?
SPLfreak18 2 years ago
yeah you need a way bigger port. your supposed to use between 12 - 16 in^2 per cubic foot so thats 72 - 96 In^2
danielhattie2000 2 years ago
dude that port is giant what are you talking about
acdcskater09 2 years ago
when tuning a ported box it is recommend that you use between 12-16 in^2 per cube for port area because smaller than 12 could give you port noise and could give you hollow bass. he has 50 in ^2 to 6 ft^3 of box which is 8.3 in^2 per cube. which is way too small
danielhattie2000 2 years ago
@danielhattie2000 This is relative to the type of subwoofer and type of enclosure that you decide to build, but is a great place to start. Port noise accumilates when the pressure in the enclosure exceeds the maximum pressure with 10% distortion. The numbers you used here are a great way to avoid that. Great information for ported enclosures.
mobileenclosures 1 year ago
@mobileenclosures yeah when you dopnt know what your doing those numbers are great help
danielhattie2000 1 year ago
@danielhattie2000 Looks like it!:) Great set-up, man.
mobileenclosures 1 year ago
sound pretty hektik but i think 12.5"x4" is a bit of a squeeze if thats a 6 cu. ft. box net
wsmski 2 years ago
@wsmski Like I said in danielhattie's post reply, The port area is relavent information when you talk about the relation between internal volume vs port size. But if you design a box for spl rather than sq, then a 12.5X4 for a single twelve would be a great starting point. Generally, you want the X and Y relation to be within 10% of each other. For instance, a 1" X 10" would be cutting it too close, but 12.5" by 4" is only 3-4% of each other in port area. So, generally, this would be ok.
mobileenclosures 1 year ago
nice sys i like it.
check mine plz
moddingpc 2 years ago
Decided to start thinking about building a new box on friday night, woke up... said let's do it, and by 5 am sunday morning, we were wakin people up :D
mikeyhead69 3 years ago