As OP suggested, Norman Laboratories appears to only have produced speakers. From what I could find, it's a company that was based in Norman OK in the 70's and 80's and apparently sold in a fairly localized area that included Little Rock AK. Sounds like they were considered audiophile grade speakers for their time.
Professional Identification help needed!
Recently purchased this amplifier off of an auction site. Any idea who was the manufacturer of this unit? Auction number 164639221826. Any and all help would be greatly appreciated.