SAE "X" Series Specs
The "X" series was an effort by SAE in to enter the "high end" audiophile market. Components were also available in black. I believe this series ran in conjunction with the "01" series and also was designed and manufactured in Los Angeles.
 

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Above is the front cover and rear page from the Japanese "X" series brochure. Two things are interesting about it- 1) it states that a box of Monster speaker wires are included and 2) Sanyo was the Japanese distributor.