Automatic, manual, and preset tuning  Two-way RS-232 serial port connection  Direct frequency access via remote and RS-232  Thirty station presets, switchable to eight for quicker scrolling  Forced Mono operation for mono zones  Remote handset assignable up to four different zones  Automatic on/off by 9 - 12 V trigger, with looping output  Fully remote controlled with discrete on/off commands  Rear panel infrared remote input and looping output  Gold-plated RCA output jacks  Multi-region European operation  Voltage switchable between 115v and 230v  Unique half-rack width chassis; 1 rack space high  Fastening hardware available for rack mounting  Parasound 2 year parts, 2 years labor warranty (For US & Canada purchases only)