I do recall Clarion's attempts to go upmarket in the late 1970s, an attempt that was unsuccessful because their brand name had a low-end car stereo connotation, even though the gear itself may have been perfectly good. They should have picked a more upscale sounding name for their new products. Anyway, the deck in the picture closely resembles what I remember from said furniture store. You may be correct in that they were NOS units. They do really look like some of the BSR and ADC units available for sale about that time and sold by Dixie Hi-Fi and others as well as mail order through DAK. I would be interested to see how they perform.