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Modding Altec Santana's

I would install 411B woofers with a resonance freq of 18 HZ and a 93 db sensitivity, or a 3154 with 25 hz resonance freq and a 95 db sensitivity. Then I would look for A small Mataray 500 Hz horn, either 60, 90 or 120 degree with a 902 driver using the latest diaphragm. Which should take you to 20,000 hz with in +/- 4 db. The woofer handles 100 RMS with 400 watt peaks, the Horn 30 watts with 100 watt peaks. With the efficiency difference and crossing over around 700 to 800 hz the horn should be easily capable of keeping up the woofers.
 
ok so ive sourced a pair of Stephens trusonic 120cx coaxial speakers in prestine condition,anyone have any opinions on these vintage speakers.They come with there original level control/crossovers which would leave me with just finding cabinets ,modding to accept the coaxials.

hunter
 
I would install 411B woofers with a resonance freq of 18 HZ and a 93 db sensitivity, or a 3154 with 25 hz resonance freq and a 95 db sensitivity. Then I would look for A small Mataray 500 Hz horn, either 60, 90 or 120 degree with a 902 driver using the latest diaphragm. Which should take you to 20,000 hz with in +/- 4 db. The woofer handles 100 RMS with 400 watt peaks, the Horn 30 watts with 100 watt peaks. With the efficiency difference and crossing over around 700 to 800 hz the horn should be easily capable of keeping up the woofers.
 
The sealed-box Altec "Dynamic Force" woofers (411 and 413) are oft-maligned -- but IMO they do get the job done.

In fact, dollar for dollar, I think that the (also sometimes maligned) Altec Santiagos are one of the great high-sensitivity loudspeaker bargains. At least the pair I have (found by botrytis on CL back when he lived in MA) were.

DSC_5663 by Mark Hardy, on Flickr
(Santiagos in the corners in photo above)
 
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heh -- as long as I am (was) on the subject; here's a better photo of one of the Santiagos in situ in the ol' house (living room):

santiago by Mark Hardy, on Flickr

Interestingly, the Santiago is only a bit larger than the Santana -- in a different league, though, I'd opine.

page02.jpg


image source: http://www.lansingheritage.org/html/altec/catalogs/1975-home.htm
 
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