Firstly I have seen one thing about this unit was the quality. I was very impressed with workmanship with which this was assembled. Mainly like a small rack system device you would have sitting in home theater together. I am going to go over some functions of this unit.

The important feature this unit is boasting is 3D surround & TruSurround. Here is a recommendation directly from website that describes this in detail.

"SRS, stands for Sound Retrieval System, came about many years of research on psychoacoustics of sound and dynamics of human hearing system. SRS regains spatial information from recordings and restores original three- dimensional sound field. Thus, replicated sound is much closer to a live performance. Like live performances, SRS has no serious listening position. Listeners can move around the room and continue to be immersed in complete three-dimensional sound."

Here are some other functions that are added in the user’s manual:
7 Band digital graphic equalizer
(60Hz, 150Hz, 400Hz, 1KHz, 2.4KHZ, 6KHZ, 15KHZ)

• 3 User setting Modes
• 4 Preset Modes (Normal, Rock, Pop, Classic)
DSP Functions
• 4Modes Hall, Live, Club, Stadium
Auxiliary Function
• Can play cassette Tape or Radio through the Microphone Jack.
Microphone Function
• Support condenser microphone
Digital Sophisticated VFD
• vacuum Fluorescence Display Panel
Various digital display modes of sound signal
• Spectrum Analyzer

Electric Master Volume Control
Headphone Jack
Mute Function

Here are some advantages of unit.

• Natural 3D sound image from any two speaker stereo system.
• Depend on features of human hearing system for natural, non-fatiguing sound.
• Supports mono, stereo, and surround sound for pleasure with any input material.
• Completely immersive sound without a apparent sweet spot, permitting excellent sound from any listening position.
• 60 U.S. and foreign patents issued.