Saturday, December 19, 2015

Latest Find: Pair Of Altec Lansing Corona 893A Acoustic Suspension Loudspeakers

These turned up at the local transfer station.  Someone had left them at the edge of the small covered storage area and they were getting wet from rain blowing in from the East.  This is a quality design from about 1969 with treated cloth surrounds instead of the molded foam ones.  They are finished in the original black walnut.

Pair Of Altec Lansing Corona 893A Acoustic Suspension Loudspeakers
Pair Of Altec Lansing Corona 893A Acoustic Suspension Loudspeakers
Of course, I had to try out the woofers in the Folded Corner Bass Horns.  They worked quite well.  The upper frequency cutoff of these ten inch woofers on this horn appears to be a little over 250Hz.

Altec Lansing Corona 893A Woofer #1
Altec Lansing Corona 893A Woofer #1


Altec Lansing Corona 893A Woofer #2
Altec Lansing Corona 893A Woofer #2
Here is one of the woofers mounted on the New Folded Corner Horn.


New Folded Corner Horn - Altec Lansing Corona 893A 10" Woofer
New Folded Corner Horn - Altec Lansing Corona 893A 10" Woofer
It appears as if any reasonably good woofer works well as a driver for this horn.  Of course, "power handling" is not really a consideration because the music playback is pretty loud at input power levels of less than 1/100th to 1/10th of a Watt.

I now have the KLH CL-3A 12" woofers back in the horns.  The upper frequency cutoff for the KLH 12" woofers is around 350 Hz.  The Altec Lansing 893A pair have been reassembled and cleaned up and are near mint.



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