Designing enclosure volumes

[Syncroniq]

Hi,

Im still new here, and though it could be interesting to hear how others out there calculates enclosure sizes. Would be great with examples (could use SCP 2.0 )

I use to calculate based on stepresponse.

Taking the ScanSpeak 18W/8531 as an example....

Fs: 28
Vas: 59 liters
Qts: 0.36
Qes: 0.39
Sd: 150cm^2

I would prefer a 25 liter enclosure, tuned at 28Hz.

Giving this StepResponse amplitude


No ringing in the amplitude.

Type the parameter in SCP to see the Frequency response, groupdelay and coneexcursion.

Basicly thats how i calculate (i meassure the TS myself ofcourse to get the right starting point).

I would like to hear how people in other countries do it.


(By the way, heres the stepresponse for a QB3 alignment (max flat) coursing ringing)

[AndrewT]

I like the way WINisd pro works and displays results.

[Syncroniq]

Hi,

How does it do that? I havnt used WinISD for MANY years...

[AndrewT]

Ask the software designer how it does that.
I'm just a satisfied user.

[Syncroniq]

Hi,

I didnt mean what software you use, but how you get to the compromis that you do. Like i concentrate on the stepresponse.

I know the formulas used in WinISD. Same as in SCP (i wrote it).

Do you look only at the frequency response, or what do you do?