Pioneer HTP-S313 Smart Theater 313 is a revolutionary model that will launch in the market late May. Input/output terminals include Optical digital audio input 2, coaxial digital audio input 1and audio input / output Input 1. HTP-S313 system features 5.1ch amplifier & FM/AM tuner on-board receiver sub woofer and front speaker (L and R), center speaker (L and R) and a display unit. The model comes with a remote control for controlling operations from a distance. Smart Theater 313 makes a good combo with Pioneer Plasma TVs of the SR+ functional attachment.