weird liquid bladder speaker

[colemanyoungerinalaska]

a friend of mine who is a dj just got this soundsystem from a guy up in fairbanks who got it at an auction after they closed down the fireweed theater in anchorage. 4 of the speakers look pretty normal large woofers then horns but one is weird ive never seen anything like it. its a sub that fires into this liquid filled bladder or something im not sure how it works cuz the box is entirely sealed except for a port and one sort of oval opening where you can fill the bladder. i wish my digital cam hadnt been stolen so i could take pictures. all i can find on this is patents i was wondering if any of you have seen or heard one of these

[breakjunki]

wow, thats a new one, would that be consider aperiodic? I don't know? Or is the inflation of the bag maybe to change tuning? let me know..

[cargodz]

Does it have any info on the speaker itself? Such as Name, Model #, etc.

[colemanyoungerinalaska]

not a thing none of the others have any marks o them either but maybe we can take out the woofers and see what brand model they are

[cargodz]

Yeah I can't find anything on a generalized search, but I'm sure I could dig up something if I had more info.

[colemanyoungerinalaska]

heres some of the patent i found i believe this is the same as what we have there are no pictures on here though so i cant be sure sounds about right though

this is from http://www.patentstorm.us/patents/60144 ... ption.html

SUMMARY OF THE INVENTION

Accordingly, it s an object of the present invention to provide an acoustic speaker system that efficiently reproduces low frequency audio signals.

Another object of the present invention is to provide an acoustic speaker system whose low frequency or bass response closely simulates that of actual instrumental tones.

Still another object of the present invention is to provide an acoustic speaker system that efficiently reproduces audio signals below 15 Hz.

Other objects and advantages of the present invention will become more obvious hereinafter in the specification and drawings.

In accordance with the present invention, an acoustic enclosure system for a loudspeaker is provided which includes a central chamber and two end chambers. The central chamber is separated from each of the end chambers by a common horizontal wall. Two loudspeakers are sealably mounted in the central chamber such that one speaker is mounted in each of the horizontal walls and the speakers face away from each other. The central chamber has a port in a side wall that is open to the outside of the enclosure. Each of the end chambers is airtight and contains a fluid chamber with a flexible bladder that is filled with fluid and maintained in the end chamber at a given distance from the corresponding loudspeaker. The flexible bladders receive acoustic pressure waves generated by the loudspeakers. Each of the bladders contacts the interior surfaces of the side walls and end piece that form the fluid chamber. A flexible support is provided underneath each of the bladders so that the bladders are each substantially maintained a distance L from the respective horizontal walls.

This enclosure system produces 11/2 times the vibrational effect over a single speaker design. In addition, smoothing of the bass waveform and more accurate definition of the waveform are achieved, which make the output stronger in the tactile response on the body and deliver a much smoother tone.

[colemanyoungerinalaska]

im gonna try to get this off him he got the whole setup cheap so im gonna make him an offer so i can play with this thing

[cargodz]

I REEALLY gots to see a picture of this thing :)

[breakjunki]

damn it like I really needed another thing to tweak over :) I've been searchin for something about this for a while. Its got me curious, especially the 11.5x over a single speaker? I thought I've seen most enclosure designs. I gotta see a pic....

[breakjunki]

I just re-read it, that thing is designed to hit low as hell, basically one big bass shaker.. but smoooothh, and shake the whole room.