Checking for Air Leaks with a Halogen Work Light

[cforger]

Hey,

Try shining a halogen work light inside your build, and check the seams from the outside in a dark room. You may be surprised that your caulk/PL has a few hairline cracks or pinholes. If you've got a good tight seal, you shouldn't be able to see light through the seams.

I found a few little spots myself tonight doing that.

[DAVID_L_PERRY]

But there may be some area's that the light does not get to (round folded horns etc)

The best way is to use a 30hz test tone. The tone will not really be heard but the sound of escaping air should be...

Dave

[cforger]

Ah, this may work best on a Tuba then - You can't fire it up properly until you're done (unless you want to keep reinstalling and removing the driver) and by then, how do you get to the areas deep inside to fix your mistakes?

Many checks can be made, this is a quick one you can do while it's still half-open like my Tuba 24.

[ebinary]

You can you use my technique - run 300 watts of a sine wave through an Eminence Beta. Then, watch for smoke in the horn throat.



Eric

[DAVID_L_PERRY]

Best just to apply more PL glue than you possibly think the cab can stand, at least 40 tubes per cab, of course the expansion will push you out of the garage but at least it will be airtight.....

I love the smoking driver option......

[Strapping Young Stu]

Leave space to install a smoke machine in the horn throat, then you can have smoking speakers all the time, and an efficient distribution system

Stu

[DJ Big Ronn]

That would be pretty cool to have smoke coming out, as well as light from inside the throat. The only problem is that you would need a plug for the AC cord on the box. I had thought of the lights, but nixed the idea.