Very very very small sub

[robomatique]

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

 

[Puggie]

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.

 

[sreten]

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

may be useful,

/sreten.

 

[baggins]

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.

 

[SpeakerBob]

The peerless xls 10" & 12" drivers look good candidates for small sealed boxes.


Rob

 

[AJinFLA]

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

An externally hosted image should be here but it was not working when we last tested it.

 

[Vikash]

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

 

[michiel]

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!

 

[robomatique]

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

 

[leadbelly]

Food for thought:

http://www.diyaudio.com/forums/showthread.php?s=&postid=222428&highlight=#post222428

 

[simon5]

The best? Maybe a XXX 10"...

To go smaller, you could use a JLaudio W7 8"...

You could then use some passive radiators or go sealed with LT...

Peerless won't cut it with that smallish Xmax IMHO.

 

[SpeakerBob]

Peerless won't cut it with that smallish Xmax IMHO.

I personally don't think 1" peak to peak is 'smallish' for a 10", and 2 would fit nicely in a small box push-push.

I'd go for 12's myself but in the UK the 10's work out a lot better value.

Cheers,

Rob.

 

[simon5]

Oh, he's in England... yeah there's almost only Peerless there.

The box is also bigger than I was thinking.

So yeah, use a Peerless 12" XLS with dual 12" XLS PRs.

 

[richie00boy]

Check out the 10 inch Max Caliber from http://www.pa-direct.co.uk/drivers.htm they are a nice company to deal with.