To Buy or to DIY, here is my question

....oh....

@erik_squires ​and ​@oldhvymec 

+10 for the support, even inadvertent is appreciated... ;) 👍

I can build speakers better than any factory. I have a woodshop with excellent tools. But I am slow and most of all plain lazy. I have a design degree too...it's a complete sin.

I can afford to buy them so I buy them. But I think you should build them. Go for it. You can always tweak and build on what you've learned the next time...and then just move the components into a better cabinet. Don't be afraid to find a cabinet maker to advise or even do parts of the more difficult procedures.

really ? better than a cabinet within a constained layer cabinet with the outer cabinet wrapped in aerospace satellite grade CRFP, cured in an autoclave…. sure….

There is nothing more rewarding than designing and building something with your own hands.

ditusa,

Thanks for that link. Now there is one on the list. 

To build a speaker cabinet without it doesn't make sense. 

1. Stronger joint for structure integrity.

2. More bonding surface than traditional 45 miter.

3. Provides an air tight seal.

When I purchased my first locking miter bit I purchased it at Woodcraft. I figured I would ask the staff there as the majority that work there are seasoned woodworkers who have a shop. 

None of them had experience with it nor could advise. 

Personally, I would not build a cabinet without this joint.