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

Hello,

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

Regards

Robert
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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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http://www.winebase.com.au/audio/avsbdm.htm

may be useful,

/sreten.
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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

Bill.
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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.


Rob
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Old 24th January 2006, 05:39 PM   #6
AJinFLA is offline AJinFLA  United States
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Oh that small http://www.rel.net/index2.htm. 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. http://www.rythmikaudio.com/servo_product.htm
something a bit out of the ordinary, for a very,very reasonable price for what you get.

Cheers,

AJ

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.

http://www.vikash.info/audio/xls10/design.asp
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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 www.hypex.nl , 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.
http://www.bkelec.com/HiFi/Sub_Woofers/XLS200.htm

Robert
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Old 24th January 2006, 08:06 PM   #10
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Food for thought:

http://www.diyaudio.com/forums/showt...ht=#post222428
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