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B2 sub plans

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koffertjes View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote koffertjes Quote  Post ReplyReply Direct Link To This Post Topic: B2 sub plans
    Posted: 12 September 2019 at 5:04pm
Hello ,
I'm looking for the plans of a D&B B2 sub cabinet.
For those who are interested , i have the plans for Max 12 /15 incl original filter
Q sub,C4 sub and C7 sub.
All drawn by me from an original cabinet.
So anyone who wants to share?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote csg Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 7:49pm
why do you want to build such a terrible sub?
“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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FOO View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 7:54pm
Google is your friend. Just tried it, and found it in 3sec.
Also, i guess you got the amps for it, since you want to get a box wich sound like shait on regular amps :) 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 10:29pm
The plans you'll find online for the B2 aren't correct....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2019 at 11:06pm
Originally posted by FOO FOO wrote:

Google is your friend. Just tried it, and found it in 3sec.
Also, i guess you got the amps for it, since you want to get a box wich sound like shait on regular amps :) 


There’s no magic to the preset, it’s just a massive EQ boost like all d&b subs. Not actually dissimilar to what people used to laugh at scoop owners for doing with their preamp, in fact.

The online plans are wrong but you can buy a clone from China or Russia if you’re really bothered about huge output at one note.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote djeddie Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2019 at 9:45pm
Originally posted by toastyghost toastyghost wrote:

...The online plans are wrong but you can buy a clone from China or Russia if you’re really bothered about huge output at one note.

but, unfortunately, the wrong note.
Chas n Dave : it's like Drum and Bass but with beards.             E=mc² ±3dB
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 13 September 2019 at 10:31pm
I just prefer more QSubs rather than adding B2's
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Post Options Post Options   Thanks (0) Thanks(0)   Quote murrat72 Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2019 at 12:26am
Hi koffertjes,

Please can you link the plans to the Q-sub

Thanks. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2019 at 2:13pm
Originally posted by murrat72 murrat72 wrote:

Hi koffertjes,

Please can you link the plans to the Q-sub

Thanks. 


It’s a reflex box. Do you have the original drivers, and amplified controller?

If not you aren’t building a Q Sub. Design a reflex in similar external dimensions for the drivers you have.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMorison Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2019 at 3:31pm
Originally posted by toastyghost toastyghost wrote:

 
It’s a reflex box. Do you have the original drivers, and amplified controller?

If not you aren’t building a Q Sub. Design a reflex in similar external dimensions for the drivers you have.

You're completely right, but I was interested when someone posted this image a few years ago.

Takes some of the guesswork out of it....

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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2019 at 3:49pm
Well yeah, pretty much every d&b box has a B&C unit in it. Even the new big boy GSL and KSL is using modified off-the-shelf parts. But the point still stands, if you don't process it as they do, it's not a Q Sub.

And trust me, I don't think many people on here would even remotely approach their style of EQ

Edited by toastyghost - 06 October 2019 at 3:49pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote murrat72 Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2019 at 5:16pm
Yes can buy the exact drivers and have access to D&B audiotechnik amps, just want the speaker plans. 
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