Ken-Audio / Delhan Audio Systems Tube Preamp


I need some help from the Hive Mind. A long time ago (1978? 1979?) when tubes were all the rage for the second time, I bought a tubed pre-amp at Woodland Stereo in Woodland Hills, California to replace my Hadley 621 pre-amp. I still have it, but I know almost nothing about it. I would be interested in knowing who was involved with the project, and anything about the circuit.

The serial number is on a sticker proclaiming "Delhan Audio Systems, Hollywood, CA"; it is identified as a SoundExplorer CR-1000, and the serial number is 780609, which makes me think it was made in 1978.

The tube compliment is 2x Mullard ECC82, and 4x Allegro Sound GS-6072. Allegro Sound are still around in Los Angeles and specialize in old tubes for very expensive professional recording microphones and other gear.

This was a quality item, built like a battleship, and stuffed with the best components money could buy (like the Alps precision volume potentiometer).

Here’s a picture of the pre-amp on a Japanese auction site....

https://aucview.aucfan.com/yahoo/u43702935/

Did Ken Shindo have something to do with this project? Did Delian Audio import this from Japan? Is there an expert out there?

Any help appreciated.
9e7ba07d 49a7 4363 a6bc 1ea80b28ce42phomchick
Ken Audio! Awesome. (I’m of the Ken clan)

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