Below Harman Card Harman/Kardon Citation X-1 from japan | eBay
AudioBaza: Harman Kardon Citiation X-I - Power Amplifier
Citation X-I and X-II Matching Preamp and Amplifier, Very Rare and Collectable | Reverb
Harman Kardon Citation X-I Amplifier - Very Rare and Collectable
Harman Kardon Citation X-II high end preamplifier … Very Rare | Inox Wind
Harman Kardon Citation XII Stereo Preamplifier Manual | HiFi Engine
Harman Kardon Citation X-1 | Hifi Classic Reparatur / Genuss für Auge und Ohr -- Ihr freundlicher und zuverlässiger Partner rund um Hifi Classic in Wuppertal Ennepetal Gevelsberg Schwelm