his is a very good Stereo/ProLogic amplifier, NAD's best Dolby ProLogic amplifier so far.It plays very well in Stereo mode, you will be amazed of how powerful and good it sounds. The sound image is a bit on the warm side.You can't get any better amplifier in this price class.NAD chose to use a ANALOG Dolby ProLogic decoder because it gives much better sound quality than the DIGITAL ProLogic decoder.The DIGITAL ProLogic decoder has several A/D and D/A transformers that only can damage(and will if they're not of very high quality) the sound image/quality.You can crank the volume as much as you want without thinking about damaging your speakers(tweeters) because of hard clipping, when you have NAD's software clipping activated. If this amplifier for some reason doesn't give enough power to run all your speakers, connect extra amplifiers to the pre-outs to run them (for all channels). It has a RDS Tuner, and 5.1 channel inputs for later upgrades, like a Dolby Digital/DTS upgrade (from f.x. a DVD Player).Connect a speaker with any impedance, this amplifier can feel the impedance of the speaker. .You can connect 8 audio inputs (video 1 to 4, tape 1 to 2, aux, cd), and4 video (composite) inputs.