Info on building a 15" bass cabinet

[Turock]

Then you have not read on this forum enough.

Tons of threads that usually start off with "Why did I blow my 1X15"

I'm sure the answer is always because he had it paired with a 4x10. I've blown 2 different 15s in my lifetime. Both times paired with another 15.
Maybe, sometimes, ya think the posters simply just want their questions answered.
This has been discussed ad nauseum. Do a search. These threads are becoming more common than P vs J. Do you guys just cut and paste this stuff?

 

[ThisBass]

Then you have not read on this forum enough.

Tons of threads that usually start off with "Why did I blow my 1X15"

Voice coil 2" diameter and 200 Watt Hiwatt Top.

I think I'd manage the blow up in 2 or 3 hours.


For a high SPL on stage is the 15 surface to small, for a lot of distorted power the voice coil to small.

 

[Bass_Pounder]

I'm sure the answer is always because he had it paired with a 4x10. I've blown 2 different 15s in my lifetime. Both times paired with another 15.
Maybe, sometimes, ya think the posters simply just want their questions answered.
This has been discussed ad nauseum. Do a search. These threads are becoming more common than P vs J. Do you guys just cut and paste this stuff?

Yes, the threads are very common, and have been beaten to death.

In the end, I will take my advice from those that actually design and build speakers and cabs vs advice from people with anecdotal experience (and that is with my 30+ years of experience).

 

[Dave W]

***Slowly backs out of thread***

 

[PlungerModerno]

***Slowly backs out of thread***

Yeah . . . um. What?

This doesn't look like it's going anywhere good.

My 2c: Acoustics are like aerodynamics - you need theory + modelling and LOTS of testing and tweaking for good designs . . . Not that you can't get it right first time, but I'd guess some existing designs are almost as good as possible - so check them out!

The whole 'mixing cabs' thing seems to be that it works for some, but some have had problems. Exercise caution, I'd fear 'stacking' the unknowns - i.e. adding your experimental cab design with mixing driver sizes and types.

Good luck with the project. With a good driver and cab match you'll have a sweet 115 cab - even if it doesn't complement your 410 too well (worst case scenario).

 

[jungleheat]

In a case where you have a 4x10 and a low wattage tube amp, I don't see too much to recommend AGAINST a 1x15. You're talking about a 4x10 that's 300w. It's pretty easy to find 300w or more 15s. Not to mention many 15s might be more sensitive than a particular 4x10, and LIKELY (not necessarily) will have at least a few Hz more in the low end. Just as the 10s will LIKELY go higher than the 15 (with or without a tweeter). And when you're talking about the 15 taking half the amp output in this scenario, you're only talking about 60-70 clean watts, and maybe 150 peak AT THE MOST). I think just about any pro audio 15 will take 60w or so with no problem, and more modern ones wouldn't even blink at twice that.

My advice if this is what he wants is to look around at what 15s he could get his hands on in is budget, do some research, see what their relative merits are, then pick one and model some cabs, then pick one and build it.

If we were talking about a 1200w amp paired with an 800w 4x10, my answer might be different. But that's not what we're talking about in this case. Actually, if anything I would ditch the 4x10 and just build a really efficient 2x15. Some of the old JBLs have sensitivities up to about 105db, meaning 108 db @ 1w for 2 of them, which is damn loud (max spl of about 129db).