Audioque and RE box calculator QUESTIONS

[Bass911 10+ year member]

I fully understand how Audioque wants their boxes designed. What I don't understand is when you input these figures in the RE box calculator the box is tuned to 32-33Hz? I know this calculator is pretty accurate from experience. You can input most manufacturers specs in that calculator, and most are dead on or only off by 1-3Hz for the tuning. Audioque says the box will be at 40Hz, RE says 33Hz. Maybe this is why people think AQ hits the lows so hard or maybe this calculator is no good for AQ subs? I'm making one for 2 Sdc2.515's. The box I'm going with is 8.5cu ft. and 136 sq. port area. Can anyone help me out?

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[deathpenalty18 10+ year member]

u can tuned it to 33hz it will hit low. mine is tuned to 34 and its perfect! but i wouldnt tuned to 40hz unless ur doing mostly comps and barley daily. i would prob tuned this somewhere inbetween 35-37 hz

 

[fasfocus00 5,000+ posts]

i've built boxes for AQ subs tuned to ~38hz and they hit low and hard as well as building boxes for other brands and keeping tuning to ~34hz with similar results. I have found that the RE calculator is slightly off by like ~2hz especially and even more for most others b/c those ppl don't take into the account sub displacement which will raise your tuning another 1-2hz depending on subs.

 

[Bass911 10+ year member]

u can tuned it to 33hz it will hit low. mine is tuned to 34 and its perfect! but i wouldnt tuned to 40hz unless ur doing mostly comps and barley daily. i would prob tuned this somewhere inbetween 35-37 hz

I know I could tune lower, but I don't believe that RE calculator is off by that much. If I tune lower and put those specs in, the box will tuned to 27Hz with the RE box calculator. What box program do you use?

 

[Bass911 10+ year member]

i've built boxes for AQ subs tuned to ~38hz and they hit low and hard as well as building boxes for other brands and keeping tuning to ~34hz with similar results. I have found that the RE calculator is slightly off by like ~2hz especially and even more for most others b/c those ppl don't take into the account sub displacement which will raise your tuning another 1-2hz depending on subs.

But do you fully understand what I am saying? Audioque says the box is tuned to 40Hz, but when you put in in the RE box calculator it shows it to be tuned to 33Hz. I don't feel right making this box if I don't know what it is exactly tuned too?

 

[deathpenalty18 10+ year member]

I know I could tune lower, but I don't believe that RE calculator is off by that much. If I tune lower and put those specs in, the box will tuned to 27Hz with the RE box calculator. What box program do you use?

i use re calculator too seems to work fine . just of buy 1-2hz. dont make the box tuned to 27 thats way to low bring it up to 30 at the very lowest if u wanna hit the lows and be loude as **** then tune it to 32 hz

 

[Bass911 10+ year member]

i use re calculator too seems to work fine . just of buy 1-2hz. dont make the box tuned to 27 thats way to low bring it up to 30 at the very lowest if u wanna hit the lows and be loude as **** then tune it to 32 hz

But it's off by 7Hz if you make the box like Audioque wants it made.

 

[fasfocus00 5,000+ posts]

But do you fully understand what I am saying? Audioque says the box is tuned to 40Hz, but when you put in in the RE box calculator it shows it to be tuned to 33Hz. I don't feel right making this box if I don't know what it is exactly tuned too?

maybe you don't fully understand. if the RE calculator is off by 1-2hz and it says it's tuned to 32hz that puts it's actual tuning to 34hz and you are not accounting for the displacement of the sub that will increase your tuning ~2hz to around 36hz. honestly you are making wayyy to big of a deal about the tuning frequency. if you're off by a couple hz it's fine and you will not be able to hear the difference as the ear cannot distinguish direction or tone of sounds below 100hz. when you're off by 8-10hz than you'll notice subtle differences but nothing too major unless it's from 40hz-50hz or 50hz to 60hz.

 

[SicAudio 5,000+ posts]

and everyone thinks i am nuts for saying re calc is off for anything but re subs lol. Even Greg at RE will tell u it was designed for RE subs specifically so you need to account for that or use BBP 6

 

[Bass911 10+ year member]

maybe you don't fully understand. if the RE calculator is off by 1-2hz and it says it's tuned to 32hz that puts it's actual tuning to 34hz and you are not accounting for the displacement of the sub that will increase your tuning ~2hz to around 36hz. honestly you are making wayyy to big of a deal about the tuning frequency. if you're off by a couple hz it's fine and you will not be able to hear the difference as the ear cannot distinguish direction or tone of sounds below 100hz. when you're off by 8-10hz than you'll notice subtle differences but nothing too major unless it's from 40hz-50hz or 50hz to 60hz.

I'm not making a big deal! I'm talking about a 7Hz difference. I've never cared about a 2hz difference, and according to Dj the displacement was already figured in there. I can build it just like AQ wants, but it seems like its not the tuning they say?

 

[NB50 10+ year member]

What are the dimensions of the box?

 

[NB50 10+ year member]

and everyone thinks i am nuts for saying re calc is off for anything but re subs lol. Even Greg at RE will tell u it was designed for RE subs specifically so you need to account for that or use BBP 6

I fail to see how the calculator can tell the difference between a re sub and a different manufactures sub.

 

[d-REW 10+ year member]

just build like dj said and will be fine he uses a diiferant cal and i trusted his more then re's and my box turned out good.

 

[Bass911 10+ year member]

What are the dimensions of the box?

I can tell you, but it doesn't matter what Aq box you put in that calculator. It will be off by 6-7hz. AQ says to multiply your cubic feet of what you want the box to be by 16, and that gives you the port area. Go to the calculator and you'll see. 8.5cu ft. x 16 = 136sq port area. Put these numbers in from top to bottom in the red fields.

49

18

25.5

25.5

0.75

8.25

0

You'll end up with 8.5cu ft. and 136 of port area. The calculator will give you all the dimensions at the bottom. Can you find my mistake?

 

[Bass911 10+ year member]

just build like dj said and will be fine he uses a diiferant cal and i trusted his more then re's and my box turned out good.

That's what I'll do, but I've built more boxes using the RE box calculator. Some tuned high and some tuned low and they turned out pretty good. I just noticed this for the first time with this AQ build. The rest were only off by 1-2hz.