Off-Grid Party Sound Systems

Step 19 More ideas

I haven't tried building my own speaker boxes yet.  it's rather time consuming.  i'm not sure if you can improve efficiency by making your own box, but you can reduce weight.  searching around instructables and the web you can find many projects about building your own boxes.

along with building your own box, you can also buy whichever woofer and tweeter you like best - including some very efficient ones.  you could also swap the woofer in one of the cheaper plastic PA cabinets for a better one.

Comments

[swilliams10]

One thing that you probably all ready know, but I'll say for anyone else who's considering this is, when choosing drivers to build your own speaker, you can't just choose whichever one that you like best, or have good specs, efficiency, etc, because, for example, if you choose a woofer that's not very efficient(lets say 85 db 1w/1m), and then a tweeter that has a very high efficiency(lets go with 100 db 1w/1m), there, you have a problem, and the high frequencies will be a lot louder than the lower frequencies. Another thing you have to consider when choosing drivers is their frequency ranges. Yes, the ranges given aren't the exact range of a driver, most drivers can play beyond the stated frequency range, but the stated frequency range is usually within a +/- 3db or so range, so any frequencies beyond that will be much quieter. If you choose a woofer that has usable extension up to 2000 hz, and then a tweeter that only extends down to about 4000 hz, you will have a large dip in the spl that is most noticeable around 3000 hz and such. Long story short, there's a lot more in choosing a driver than just finding drivers that look nice and that you like. For more detailed stuff, look at the speaker building bible on the parts express tech talk forum.