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#1
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Stephens Tru-Sonic ??? What speaker is this?
Fellow RATs -- A little off point, but since this unidentified speaker was
originally used with a tube hi-fi setup: Can anyone identify the speaker/driver shown he http://www.cwo.com/~mitchell/Speaker.JPG This was in a home built cabinet with two Stephens Tru-Sonic speakers: a 15 inch woofer (model 103LX) and a horn tweeter (model 214), with two University crossovers (models N2A and N2B). The elderly gentleman selling this said that he used the speaker system in a mono hi-fi system in the 1950's, and was not able to duplicate it in the 1960's when he decided to go stereo. He chose a Altec Lansing 604E speaker as the closest thing for his stereo setup. The mystery speaker measures 6 inches in diameter, about 3.2 inches deep, and weighs about 4 pounds. It has no identifying marks visible. It uses screw terminals. There are 6 bolt holes on the front flange, and the cone appears to be a stiff phenolic material.The magnet structure is about 4.5 inches in diameter. It measures 12.4 ohms DCR. It was set up to cover the range of 2500 to 5000 Hz in this system. Is this possibly a compression driver for a mid-range horn, with the horn part missing? I've searched the web for information, but couldn't find anything definitive. It appears similar in overall appearance to some Stephens mid-range drives, but the terminals are different. I couldn't find anything in the University catalogs that appears even remotely similar. Thanks for any assistance via e-mail or posting on this newsgroup. Mitch |
#2
Posted to rec.audio.tubes
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Stephens Tru-Sonic ??? What speaker is this?
That's a mid range speaker, complete as is. Nice find, these are very
good speakers and have good value. The WoodMitch Shop wrote: Fellow RATs -- A little off point, but since this unidentified speaker was originally used with a tube hi-fi setup: Can anyone identify the speaker/driver shown he http://www.cwo.com/~mitchell/Speaker.JPG This was in a home built cabinet with two Stephens Tru-Sonic speakers: a 15 inch woofer (model 103LX) and a horn tweeter (model 214), with two University crossovers (models N2A and N2B). The elderly gentleman selling this said that he used the speaker system in a mono hi-fi system in the 1950's, and was not able to duplicate it in the 1960's when he decided to go stereo. He chose a Altec Lansing 604E speaker as the closest thing for his stereo setup. The mystery speaker measures 6 inches in diameter, about 3.2 inches deep, and weighs about 4 pounds. It has no identifying marks visible. It uses screw terminals. There are 6 bolt holes on the front flange, and the cone appears to be a stiff phenolic material.The magnet structure is about 4.5 inches in diameter. It measures 12.4 ohms DCR. It was set up to cover the range of 2500 to 5000 Hz in this system. Is this possibly a compression driver for a mid-range horn, with the horn part missing? I've searched the web for information, but couldn't find anything definitive. It appears similar in overall appearance to some Stephens mid-range drives, but the terminals are different. I couldn't find anything in the University catalogs that appears even remotely similar. Thanks for any assistance via e-mail or posting on this newsgroup. Mitch |
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