Let me preface by saying I am a complete newb to car audio. I just want to spend a little cash to play MP3s from USB media, and to improve the sound quality in my 2006 Toyota Corolla using its stock speakers. :-)

I'm trying to decide between two stereos sold on crutchfield.com. I'm trying to understand why there is a price difference, and whether RMS power is more important than PreAmp Output Volts or not.

Option 1: Kenwood Excelon KDC-X397
* $120
* 22 watts RMS/50 peak x 4 channels
* 6-channel preamp outputs (4-volt front, rear, and subwoofer)

Option 2: Pioneer DEH-X6500BT
* $130
* 14 watts RMS CEA-2006/50 peak x 4 channels
* 4-channel preamp outputs (2-volt front, rear/subwoofer)

I thought RMS power was supposed to be most important. If that's the case, why is the Kenwood cheaper?

 

* $120
* 22 watts RMS/50 peak x 4 channels
* 6-channel preamp outputs (4-volt front, rear, and subwoofer)

Option 2: Pioneer DEH-X6500BT
* $130
* 14 watts RMS CEA-2006/50 peak x 4 channels
* 4-channel preamp outputs (2-volt front, rear/subwoofer)

I thought RMS power was supposed to be most important. If that's the case, why is the Kenwood cheaper?
Ads by Google

 

when it comes to headunit power the difference is negligible...get the one with 4volt pre outs

 

The Pioneer has Bluetooth. The KDC-X597 has Bluetooth if it is important.

I would get the Kenwood.