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Old 11-19-2014, 10:28 PM
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Default RE calc VS Torres

Ok so to start off I know most calculators use different methods to determines an enclosures acoustics. I also know that placing anything in cabin changes the whole game.

My only problem is both of these calculators are widely respected but they gave me two totally different outcomes in terms of tuning and expected response with the same physical properties.

My question is, which do you feel would be more accurate for an design "on paper"?
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Old 11-21-2014, 10:37 PM
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Bumping it up. Trying to design some stuff for a friend and I'm getting completely different results despite the same input.

Need some advice please.
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Old 11-21-2014, 10:40 PM
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I have a Mac so I can't use Torres but I really like Speaker Enclosure Volume Calculator
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Old 11-21-2014, 10:53 PM
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Thanks for the tip Doug. I'll check that out tomorrow.

Anyone else wanna offer some info?
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Old 11-21-2014, 11:44 PM
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Torres is more accurate, the re one doesn't account for sub I believe plus other stuff. I found a post a long time ago that explained everything and why they are off from each other.

I have had better luck with Torres
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Old 11-22-2014, 12:38 AM
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I've noticed that for vent length calculations, some programs don't account for the vent displacement. You also have to note if you select a "slot port" option how that's calculated; if, for instance, you have a 3"x20" vent area and the wrong dimension is used for the slot end-correction, you could be 8.5" off on the correct length because it assumes the 20" is the "slot" dimension and not the 3". It also gets tricky with long "slot" dimensions and end-correction factors anyway, and if the program has no way to compensate for this (and just assumes "length-1/2 dimension") the numbers will vary.
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Old 11-22-2014, 06:51 AM
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Makes sense.

I see nothing but honest advice coming from your posts SPL. I appreciate it a lot.

Which program would you recommend? Mind you I don't have $xxx for a real modeling simulator.
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Old 11-22-2014, 07:52 AM
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I suggest using you're own calculations, measure height X width X depth then divide by 1728 and that's it, now take that cubic ft number plug it in any online calculator such as the 12volts and only calculate the port displacement so you can get the true net volume, aeroport usually they are very thin so 6" aero at 25" long will be 3x3 (half the dimeter squared) x 3.14 x 25" long devided by 1728 and that's your displacemt which is .40 cu ft!

For square vent like 6"x6" at 25" long just multiply height X width X length then devide by 1728 and that's it!

Kindest Regards.
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Old 11-22-2014, 09:01 AM
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Goos looking out hael. That's the simplest explanation I've ever seen.
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Old 11-22-2014, 09:07 AM
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Now that I think about it, how would we calculate the tuning on our own?
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