This is like their top of the line cd player.It retails at 650 but they got it for 130 shipping plus all the gear and support need.I just ordered this and a KRU KONCEPTS DUAL 0/1 AMP KIT.
Here are the specs
http://www.crutchfield.com/p_105KDS100/JVC...00.html?tp=5684

General features:

CD receiver with built-in MOSFET amplifier (20 watts RMS CEA-2006/50 peak x 4 channels)
plays CDs, CD-Rs, and CD-RWs (including discs loaded with MP3 and WMA files)
motorized, detachable face
remote control

Audio features:
Bongiovi-designed Digital Power Station sound processing system
Virtual Subwoofer brings out maximum bass from your vehicle's existing speakers

Expandability:
works with JVC satellite radio tuner, iPod adapter, CD changer
inputs: front-panel USB input, SD card slot behind face plate
outputs: 6-channel preamp outputs (5-volt front, rear, 2-volt sub)

Other info:
compatible with most factory steering wheel audio controls (adapter required)
CEA-2006 compliant amplifier
warranty: 3 years

thats a deal

read da reviews on dat shit...knew it was too good to be true seems like some bullshit after reading it __ slow readtime between tracks ..no adj eq ..useless buttons (id steer clear of it but hey its your money )

I was about to order that but decided against it since its an old model and didn't have the features I was looking for. The S100 series was sold as an dealer option at some car lots. That's why the original price was so high. I ended up getting a Clarion CZ series after browsing Pioneer, JVC, and Clarion's website heavily comparing headunits. Clarions CZ series came out on top and I went with that.

The S100 is a deal though if your not looking to spend much, but it couldn't cut the butter for me.

1.reading time is average.I mean it is not like it is coming str8 off a CD
2.the Bongiovi-designed Digital Power Station sound processing system makes every song I play HD radio quality
3.better than paying $380 for the Pioneer avh 4100 I was just about to buy