Single Sa-12 classic 4th order 47hz

[shredder1 10+ year member]

Merp

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[Jimi77 Premium Member]

Nice! Reasonable size for a 4th order bandpass.

 

[shredder1 10+ year member]

Nice! Reasonable size for a 4th order bandpass.

This is the same airspace and ratio

Hyundai Genesis I'm told

 

[Jimi77 Premium Member]

I haven't done a bandpass in decades, back when you had to hand calculate everything.

 

[shredder1 10+ year member]

I haven't done a bandpass in decades, back when you had to hand calculate everything.

My process is probably not much easier or faster. I use Torres briefly to get a rough idea of size then SketchUp for drawing and sizing exact renderings. All the while i'm rechecking volumes and tuning... etc. Afterwards I'm mathed out, it takes tons of equations, editing plus back checking modeling to get the final tuning I'm after.
Then I have to explode the rendering to detail specific drawings saving ea specific drawing.
Afterwards I'm usually generating cut sheets with manual input so I have to recheck everything again. To send by email or post a design just adds to the process. Screenshots, edits, thoughts and cut and paste.
Then recheck everything again but still mistakes can happen. Usually on the cut sheets, thankfully I'm to the point where it's almost second nature now, and I know what to recheck. During all this I'm online with several programs running on a 10yr old desktop that freeze frames and locks up sometimes.

And all for less than minimum with the time invested. I'm no professional, more of a hobbyist that likes to assist. I sometimes just help for free.