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21" bass reflex and drivers for it..

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Crazy Dane View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Crazy Dane Quote  Post ReplyReply Direct Link To This Post Topic: 21" bass reflex and drivers for it..
    Posted: 13 February 2016 at 3:10pm
Hi guys..

Been a long time since i have been active.
But now its time for a new project!

Dont know if this is the right place to post it, but here goes...

I have a little project regarding some subs for allround usage.

We are talking 21" reflex cabs for ease of build.
They will be used for a install, but shall be able to be moved to a outdoor event 2 times a year..
The size doesnt matter at all, as there is good access at the site.
It needs to go nice and deep!

I have easy access to 18sound, B&C and RCF drivers, and the price is not a question ;)
Performance over budget  Exclamation

I have allready been looking at 18sound 21LW1400 and 21NLW9001.
LW1400 looks like it could be great for good LF performance, but NLW9001 looks like a beast and much more powerfull with very good xmax and power handling.



Sooo let me here some ideas mates :)

Maybe a top 3 or top 5 choice of drivers, and cab constructions.



I am thinking in a design direction like this cab...
Single cab, with a very large port.

Or maybe something as a RCF 1018 sub?










Edited by Crazy Dane - 13 February 2016 at 3:52pm
You can never use to much glue!!
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krazyneil View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote krazyneil Quote  Post ReplyReply Direct Link To This Post Posted: 13 February 2016 at 3:49pm
b&c do a design for there 21sw115 driver if thats any help
 
 
also i think tony did a 21" q sub design for sombody on here
GOD TOLD ME TO DO IT !!!!!
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bass*en*mass View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bass*en*mass Quote  Post ReplyReply Direct Link To This Post Posted: 13 February 2016 at 3:50pm
othorn/gjallerhorn :)

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Crazy Dane View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Crazy Dane Quote  Post ReplyReply Direct Link To This Post Posted: 13 February 2016 at 3:57pm
Have been looking at that design, but i dont like the size of it...
In my head, Bigger Box = Bigger Boom ;)

Why put a powerfull in a small box, if it will perform better in a larger box :)
You can never use to much glue!!
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simo69 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote simo69 Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2018 at 2:49pm
What do the S21AN sound as like am looking to have 4 made ?
http://sims-audio.co.uk/
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2018 at 3:14pm
The ports of the S21AN are definately to small. So expect allot of portnoise and portcompression with for example; 21sw115 etc.
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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2018 at 10:50pm
LF21N451 models well in a B6 alignment
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simo69 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote simo69 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2018 at 8:08am
Originally posted by snowflake snowflake wrote:

LF21N451 models well in a B6 alignment


Is the a better design much more suited to this driver on here ?
http://sims-audio.co.uk/
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4AC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 4AC Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2018 at 9:07am
Originally posted by Crazy Dane Crazy Dane wrote:

Single cab, with a very large port.

+1 for this. Build a critically damped BR cabinet, with cabinet volume and tuning frequency well chosen for optimal extension and sound quality. Maybe with some kind of flared port?

There are plenty of woofers from all the mentioned manufacturers that are appropriate for this application.
uǝɿɿɐʌǝ6ɯo sı ʇsʞǝʇ ǝzǝp
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simo69 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote simo69 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2018 at 9:21am
http://audiojudgement.com/bass-reflex-speaker-design/



Edited by simo69 - 06 December 2018 at 9:34am
http://sims-audio.co.uk/
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