A-level sub project

Hi

I've set myself the challenge of building a powerful but compact sub for my a-level project.

I know very little about cabinet design etc so it will form part of my research to learn about this.

Basically I'm just asking for any advice you have or suggestions for cabinet design.  The cabinets simply got to be as small as possible but as powerful as possible (preferable about 1000w RMS).

It will eventually be used for mobile discos.

Thanks

Chris

'Sub' and 'small' can go together very well.... as long as you don't expect serious output and at least 'some' efficiency from it.....

A small sub can go deep but can't be efficient. If a high powered speaker is in there you can get some SPL by giving lots of power to it. Better would be a bigger sub with higher efficiency speaker AND this high power rating.....

I've set myself the challenge of building a powerful but compact sub for my a-level project.

Efficiency, cabinet size and low frequency response, stand together in a sort of triangle. You can make a speaker cabinet very efficient/high SPLmax and at the same time very small, but you won't get any low out of it. Or you can make it small with excellent low frequency response, but without a serious efficiency/SPLmax.

Personally I don't mind giving in a little efficiency in trade for compactness. For me a 50x60x60 cm, 18" bas reflex sub which will bring me down to 40 Hz (-6dB), and produce little over 126 dB, with around 1000Wrms, is good enough for my purpose/ music style and at the same time, I would call it compact. Some other people would totally disagree about this, because it's really personal.

To help you properly, we need more information from you. If you can tell us what size the audience will be, what your definition of compact is and what music style it has to reproduce at what level (wedding or eyeball shaking), we can give you an advise that will help you further.

Cheers

Double 15" sounds good but what would be the smallest cab I could make bearing in mind im looking for around 1Kw RMS?

Thanks for all your help so far

Chris

I dont really want to go a lot over 2x2x2 so unless I can put two 15" drivers in a small cabinet I'll have to go with a single.

What would be a good driver, preferably not over 200pounds.  Needs to be as powerful as possible.

Thanks

Chris