I bought this deck after I bought a $ 300 Kenwood. It only took me about 5 minutes on Alpine CDA-9857 price I understand that there is something strange sound Kenwood deck. It was dirty and Ringy, and all the audio controls, it could not make sound better! I had to alpine in another car, so I was used for a specific tone. I realized that I took for granted. I went back to the store and had them pull and replace it with a Kenwood CDA-9857th The difference was amazing! The all-stereo sound was better than it ever was. Everyone is different and likes different functions in the stereo. As an electrical engineer, the only thing that interests me, how well the intestine. Each Alpine CDA-9857 stereo amplifier or the costs may qualify for the gain or power, but also, and over what area? Strengthening of the distortion is not good! To listen to the CDs, this deck is met and exceeded my expectations. It has a warm and clean sound that great, if you turn up there. All the bells and whistles on some of these new decks fool to think that they are better at a lower price. There is no substitute for good regulation and that it is because the technology really is not much changed in the analog part of these decks. If you want good sound in stereo, you will need for more expensive components, the amplifiers in one, and to pay for a CD with the device. I think satellite radio and iPod functions are cool, but I think that if I Alpine CDA-9857 Fundamentals of E price are not good, do not just novelty items for the lack of good sound its best. And as I have learned from Kenwood, you can take control of the sound you want, and it has no real impact on quality. In addition, I use this particular Kenwood, as my Persian Alpine CDA-9857 value NAL example and do not think they do all the junk.