abbr. 南非共和国（Republic of South Africa）；RSA 公钥加密算法（Rivest–Shamir–Adleman）；英国皇家艺术学会（Royal Society of Arts）；RSA Security（美国信息安全公司）；无线电操作人员协会（Radio Service Men Association）；英国转播事业协会（Relay Services Association of Great Britain）
Among the custom-integration features included in all Denon "CI" models are a RS-232 for 3rd Party control and assignable high current DC trigger outputs.
Improvements to the Xperia line aren't merely cosmetic, though: Sony's added a 13-megapixel camera (featuring the HDR video-capable Exmor RS sensor) and a 1.5GHz quad-core Snapdragon S4 Pro -- Qualcomm's most potent mobile processor currently available.