Need help from WinISD experts

[cichlid_baby 10+ year member]

Okay.. my first attempt at it and it came back with something like 6.92 cu feet for internal volume on one sub. My thinking is that can't be right.

From some of the forum posts, it looks like the recommended box volumes listed on the manufacturers site can't really be trusted for some models so I want to double check them with WinISD.

Can someone with more experience with this program help me out.

I want to model the specs for the RE SE 10 D4

Mounting Depth - 6.4"

Mounting Hole Diameter - 9.3"

Overall Diameter - 11"

Bolt Hole Circle - 10.1"

Motor Width - 7.3"

Motor Depth - 3.4"

Basket Depth - 2.94"

Displacement - 0.14 cu. ft.

Weight - 21 lbs.

Electrical Q Value -Qes: 0.46

Mechanical Q Value -Qms: 4.4

Total Speaker Q Value -Qts: 0.42

Free Air Resonance -Fs: 26.6 Hz

Equivalent Compliance -Vas: 31 liters

One-Way, Linear Excursion -Xmax: 18 mm

Efficiency -SPL 1W/1m: 83.2 dB SPL

Effective Piston Area -Sd: 310 cm^2

DC Resistance -Re: 2.8 ohm

Nominal Impedance -Znom: Dual 2/4 ohm

Thermal Power Handling -Pe: 600 W

Force Factor -Bl: 17.7

Click to read more...

 

[cichlid_baby 10+ year member]

I know it's Labor Day but dang.. where's all the guru's at ???

 

[guacho80 10+ year member]

WinISD calculates the optimum flat frequency response over a large bandwidth. In car, usually you don't necessarily need a flat frequency response, because of factors like cabin gain.

That's why when you graph a small box with a higher tuning you will see a frequency peak in 40-60 hz, taking in account cabin gain, the peak may be lower or higher depending on the car, most of the time it is lower but exceptions occur.