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'Mini Soundsystem' Questions..

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mashed View Drop Down
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    Posted: 19 July 2010 at 11:47am
Hello, me & a mate are considering building a small 'scale model' of 3 way soundsystem for the living room..part novelty.. but of course we'd like it to sound decent!
 
We would like some classic design e.g. scoops for the bass. I was wondering if anyone had any dimensions / plans for a 'mini sound' ..or ..would a scoop sound good if its dimensions were reduced to 1/3 of the usual size? or would a different design be (much) more effective?
 
Has anyone tried anything similar by any chance?
If anyone could give some advice on how to go on with this project, it would be appreciated!
 
Thanks
 
 
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Saul View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Saul Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 11:57am
haha - im doing exactly this for some friends at their house. i decided i would build them a staiper micro 15, and an eminence 10" mid, and a 1" top on a short horn, all for really cheap. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote darkmatter Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 12:15pm
Originally posted by mashed mashed wrote:

would a scoop sound good if its dimensions were reduced to 1/3 of the usual size?


no.

physics means the scale model thing doesn't work. if for example a scoop that can play down to 40Hz was scaled down 1/3 of original size, it may then be able to go down to 120Hz - you can probably see the issue here.

you could achieve the effect you want by using a large reflex chamber instead of a horn and making the port look like a scoop.

alternatively there are a number of rear loaded horn designs for home hifi that might give the right aesthetic.
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bitzo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 12:52pm
interesting I'm working on the same issue for my home. I already have a 10" ciare cw254, and striclty external dimension, I'm working on some tapped horn layout.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jossdude Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 1:19pm
I did something simular but it was all just guess work and did the dread thing of scaling down a full sized plan for the scoops. They dont sound too bad at all tho for some front room fun.




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Post Options Post Options   Thanks (0) Thanks(0)   Quote pfly Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 2:20pm
Joss how have the 8643 Hybrids behaved?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 2:26pm
Originally posted by darkmatter darkmatter wrote:

Originally posted by mashed mashed wrote:

would a scoop sound good if its dimensions were reduced to 1/3 of the usual size?


no.

physics means the scale model thing doesn't work. if for example a scoop that can play down to 40Hz was scaled down 1/3 of original size, it may then be able to go down to 120Hz - you can probably see the issue here.


Exactly.

Why not just have 18" Mini scoop, and  2x12"+1" reflex cab on top running 80hz upwards ?

Would sound great close up, or in the kitchen/upstairs..

No living room would need more. LOL
"Who am I? I'm the guy who does his job.. You must be the other guy".
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jossdude Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 4:38pm
Originally posted by pfly pfly wrote:

Joss how have the 8643 Hybrids behaved?

Really well, I have loved them. Been out a few times with them, not loads yet but seem to have more things coming my way. Am really really enjoying them tho. Thankyou.

Sorry to hi-jack the thread  a little
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Meat Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 6:10pm
If I was building a mini soundsystem I'd probably be thinking about the double folded tapped horns this guy builds for bass:


http://www.volvotreter.de/th.htm


Edited by Meat - 19 July 2010 at 6:11pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2010 at 7:12pm
i agree with this man.

an 8" or 10" scoop would just be awesome Big smile


edit: surely someone must be able to make / design one? i know that it wont be anywhere near as loud as its full size relatives - but for home use, hitting 110db and going low would be plenty Embarrassed

..and it would look pretty awesome


Edited by subbass - 19 July 2010 at 7:14pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2010 at 8:44am
yesterday I finished to design mine. but it's not a scoop. Sorry. Tongue
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2010 at 10:06am
Originally posted by Meat Meat wrote:



If I was building a mini soundsystem I'd probably be thinking about the double folded tapped horns this guy builds for bass:http://www.volvotreter.de/th.htm


They look good but spotted a glaring error:
Quote I was very curious on what they are capable of. And after a weekend of listening I have to say that the result is way beyond my expectations. Sure, the big one goes deeper and louder, but they just sound great. Very well controlled and smooth, down to the lowest registers. I found myself several times not believing that only the two small TH's were running (but the big one and the Klipsch were disconnected). They are able to produce very remarkable volumes, much more than usually required for listening music as well as HT. They are capable to keep up with my mains in every way.


The guy didn't remove or short out his huge TH enclosures when testing the smaller ones, so in effect he was listening to 4 cabs, not 2!
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