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Old 24th January 2006, 11:10 AM   #1
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Default Very very very small sub


Does anyubody have any experience of building a very small sub, like the REL Q400E? Or does anyboidy have any comments about small cab design? I am thinking of a sealed cabinet, maybe driven from a hypex class-d amp if not anybody has any comments?

If there are any designs already made that would be even better, why reinvent the wheel...

I am grateful for anything, I am new to speaker DIY (I am a synth and studio equipment DIY guy) and need all the help I can get


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Old 24th January 2006, 12:05 PM   #2
Puggie is offline Puggie  United Kingdom
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Well I currently am running a Car audio sub at home, Elemental Designs e8A, a dual 4 ohm 8" sub from a couple of years ago, in a 12l box with a Coral Electronics (Peerless XLS) 10" passive radiator, the system is tuned to 25Hz and hits the low notes with authority! You could run this sub in a sealed cabinet with Linkwitz transform (it has about 16mm Xmax one way) and drop it in a box half that size (that would be a cube of about 9.5" using 18mm MDF and a double thickness baffle to make the sub flush), now that is a little sub.
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Old 24th January 2006, 03:48 PM   #3
sreten is offline sreten  United Kingdom
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may be useful,

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Old 24th January 2006, 05:01 PM   #4
baggins is offline baggins  United Kingdom
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If you want some really cheap small speakers read my thread -
MY LITTLE SPEAKERS - Ive taken 2 really cheap units and made them
out perform the usual midi offerings - I,m still dumbstruck by them
but I suppose that wouldn't impress many here! - anyway if you do go down this road email me and Ill send you some piccys

heretics are sometimes right
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Old 24th January 2006, 05:05 PM   #5
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The peerless xls 10" & 12" drivers look good candidates for small sealed boxes.

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Old 24th January 2006, 05:39 PM   #6
AJinFLA is offline AJinFLA  United States
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Location: Tampa
Oh that small At first I thought you meant something like the pic.
Don't know what shipping would be, but I've seen reviews from owners in europe.
something a bit out of the ordinary, for a very,very reasonable price for what you get.



Click the image to open in full size.
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Old 24th January 2006, 07:18 PM   #7
Vikash is offline Vikash  United Kingdom
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If you can stretch for the 10" XLS + PR (~1 cuft) then you'll be hard pressed to do better for the size.
"The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)
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Old 24th January 2006, 07:22 PM   #8
michiel is offline michiel  Netherlands
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I have a 20 liter bass reflex with 2 treo 8" woofers tuned at 20 Hz. The cab isn't the smallest you will find. But this "little" thing really goes down to 20 Hz. A few pics: double 8" BR

A verry nice HT sub in mine opinion!
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Old 24th January 2006, 07:44 PM   #9
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Thanks for answers!

It doesn't have to be cheap, I just want the best I can get from the size...

Has anybody any info on the plate amps from , there is no info about them on their site? I have built class-d amps before and I like the idea of them.

I noticed that these guys sells a sub, as well as the separate parts, that can be an inspiration.

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Old 24th January 2006, 08:06 PM   #10
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Food for thought:
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts. Bertrand Russell
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