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View Full Version : Ported Enclosures (1.7cu ~ 30hz. vs. 2.0cu ~ 35hz.)



Slammed
03-06-2008, 10:56 AM
Will I notice a difference between a 1.7 cu ft vented enclosure tuned to 29-30hz. and a 2.0 cu ft vented enclosure tuned to 34-35hz?



thanks

Slammed
03-06-2008, 10:56 AM
Subwoofer Specs:

Electrical Q Value -Qes: 0.41
Mechanical Q Value -Qms: 4.99
Total Speaker Q Value -Qts: 0.38
Free Air Resonance -Fs: 23.6 Hz
Equivalent Compliance -Vas: 85 liters
One-Way, Linear Excursion -Xmax: 18 mm
Efficiency -SPL 1W/1m: 86.2 dB SPL
Effective Piston Area -Sd: 480 cm^2
DC Resistance -Re: 1.8 ohm
Force Factor -Bl: 14.35


given 400 watts RMS......but the sub can take 600-700 continous watts

revrider1
03-06-2008, 10:59 AM
U sell that 311D yet? Dont mean to dumb here, thought Id ask...

gladiator_jai
03-06-2008, 11:00 AM
he sold it

revrider1
03-06-2008, 11:02 AM
Cool, thanks for verifying...

Slammed
03-06-2008, 11:02 AM
U sell that 311D yet? Dont mean to dumb here, thought Id ask...

dude..I sold it then I dropped it!!!


now it makes weird noise :crap:

revrider1
03-06-2008, 11:06 AM
Ground Noise? Those amps were prone to ground issues, lol...

Slammed
03-06-2008, 11:06 AM
can anyone help with my original question?

lol

:p:

dman4486
03-06-2008, 11:08 AM
ill plug the numbers give me a few minutes

Slammed
03-06-2008, 11:12 AM
ill plug the numbers give me a few minutes

:inlove:

gracias hermano!

I tried winISD but I dont know if it was very accurate

dman4486
03-06-2008, 11:12 AM
1.7@30= -3db@29hz, peak +1.5db@45-48

2.0@35= -3db@31hz, peak +3db@42-45

what i got anyway:D

edited: peaks

Slammed
03-06-2008, 11:14 AM
1.7@30= -3db@29hz, peak 45-48

2.0@35= -3db@31hz, peak 42-45

what i got anyway:D

thanks!!

do you happen to have the average SPL?

could you do a print screen/paste for me

pretty please?

:)

dman4486
03-06-2008, 11:16 AM
you will laugh at the program, but it worked great for my box, and has proven itself to me:D

one minute and ill post it

dman4486
03-06-2008, 11:19 AM
http://i264.photobucket.com/albums/ii191/dman4486/box.png

Slammed
03-06-2008, 11:29 AM
cool man


thanks :)

Slammed
03-06-2008, 11:52 AM
I uploaded the program

thanks :)