Thursday, January 7, 2016

Latest Find - Pair Of Vintage Air-Suspension Speakers - Made In Japan

I could not find any images of these online so I am posting some photos I just took of a pair of Air-Suspension Speakers I saved from a dumpster day before yesterday.  Both of these had been heaved over the side and into a large open-top container.  One survived the impact pretty well with minor dents in the cabinet.  The other was already held together with fiber-reinforced packing tape and essentially came apart on impact.  I glued and clamped the taped one keeping the tape in place to maintain alignment of the joints.


Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan
For clamps, I used rubber stretch-cords.  While this one was apart, I discovered that the drivers in these vintage speakers have woven surrounds instead of molded foam.  I have not been able to find an image of the logo in the lower right corner online so here is a close-up of that.


Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan
Here are the binding posts on the back panel.




Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan
There are three drivers in each speaker.  The crossover consists of two nonpolar capacitors.  I might try the midrange driver in a new midrange horn design at some point.


Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan


After I unclamped the speaker yesterday, I connected both of these to a Lepai 2020A amplifier and listened to several tracks while I was processing several photos taken on a recent trip.  These sound pretty good for the size.  They have a very clean sound and undistorted bass.

There is a little damage around the edges but not too much.


Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan


Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan
Here is the setup for listening tests.  When there is deep bass in the source, it comes through cleanly and undistorted but at a lower relative level than the New Folded Bass Horn output in the bass region.

Pair Of Vintage Air-Suspension Speakers - Made In Japan
Pair Of Vintage Air-Suspension Speakers - Made In Japan
 

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