Your friend in other forum said the sound produce without amp is blur and can't make satisfication right? look at what speaker and component they are using. If your speaker is good enought, Pioneer can met satisfactory without amplifier.

If three of this i need to make a choice, i'll go for the Pioneer 5750MP.

1. Can flip Down, reduced or free of dust.

2. Ipod adapter ready.

3. Feel of technolody. (aiya.. pretty enough mah)

4. Sound clarity.

5. Hardly shock. (my own opinion lar..)

qing duo zhi jiao... if found that anythings wrong..