Vacuum Amp Iso Box?

[Steve-0]

Just an idea I had. I was wondering if anyone has attempted this or has any idea how feasible it is.

If I built a Plexiglas box big enough for my combo amp and a mic, and put that box inside of a larger Plexiglas box, suspended on wooden dowels (or something) and sucked the air in between the two boxes out through a valve with some sort of vacuum pump (say, a refrigerator compressor or similar) to create something of a vacuum in between the inner box and the outer box, wouldn't I be able to crank that bad boy just about as loud as I want and hardly hear it in the room?

I'm sure this would be very difficult (or very impractical) to implement, but I'm sure it's possible (if you had the right expertise and tools).

Alternatively, what would happen volume wise if I filled the empty space between the two boxes with helium or some other sort of gas?

 

[axeman_ukl]

the inner box would have to be 100% air tight to stop the vacum taking its air plus you would need access to it to position the mic's making the seal difficult to achieve the dowels would proberly still transmit vibrations to the outer box you would have to use some of those strips that you put under drum raisers(cannot remember what you call them)

other than that i cannot think of anything else why it wouldn't work

 

[gecko zzed]

You negate the value of having a vacuum if you fill the space with a gas.

 

[SouthSIDE Glen]

You'd basically be putting your amp inside of a large Thermos bottle (Thermos box? ), meaning as you pumped juice into it, it'd just keep getting hotter and hotter and hotter and hotter and...you get the point. You could leave the amp outside and put just the cab inside to help extend tine.

I'm also not sure just how the speakers will work or like it in a completely sealed container. Wouldn't they kind of be working against themselves in a fully-closed environment? Mr. Wizard? Profesor Whoopie? Harvey?

G.

 

[Erockrazor]

Does sound happen inside a vacuum? Wouldn't there be no air to be pushed around in the box..

In a perfect vaccuum that is.

 

[mshilarious]

From a technical point of view it's possible. Practically speaking, the compressor you are running to remove the air will be as loud as the amp with a single layer of soundproofing.

 

[c7sus]

From a technical point of view it's possible. Practically speaking, the compressor you are running to remove the air will be as loud as the amp with a single layer of soundproofing.

I've worked with some suckpumps that could draw 32" of mercury easy, and they were damned proud of it.