1. Dolby Pro Logic II decoder Dolby Pro Logic II is a new format for playing multichannel audio signals that offers improvements over conventional Dolby Pro Logic. It can be used to decode not only sources recorded in Dolby Surround but also regular stereo sources into five channels (front left/right, center and surround left/right). In addition, various parameters can be set according to the type of source and the contents, so you can adjust the sound field with greater precision. 2. Dolby Digital decoder Dolby Digital, a digital discrete system in which the different channels are completely independent, recreates “three-dimensional” sound fields (sounds with a sense of distance, movement and position) with no crosstalk between channels for greater reality. In addition, the 5 channels (excluding the 0.1 channel for low frequency effects) have a playback range extending to 20 kHz, the same as the range of CDs, thus resulting in clearer, more richly expressive sound. 3. DTS (Digital Theater Systems) decoder DTS provides up to 5.1 channels of wide-range, high fidelity surround sound, from sources such as laser disc, DVD and specially-encoded music discs. 4. High performance DSP simulates 7 sound fields Playback is possible in 7 surround modes: 5-channel Stereo, Mono Movie, Rock Arena, Jazz Club, Video Game, Matrix and Virtual. You can enjoy a variety of sound effects for different movie scenes and program sources even with stereo sources not in Dolby Surround. 5. Personal Memory Plus function Personal Memory Plus is an advanced version of Personal Memory. With Personal Memory Plus, the set automatically memorizes the surround mode, channel volume, surround parameters, etc., for each of the separate input sources. 6. Remote control unit with pre-memory function This unit comes with a remote control unit equipped with a pre-memory function. The remote control command codes for DENON remote controllable AV components as well as for LD players, video decks, TVs, etc., of other major manufacturers are prestored in the memory. 7. EXT. IN jack This unit is equipped with EXT. IN jacks for use with audio formats of the future.