Does anyone have any experience with this head-unit? I was looking for a good price on the Nakamichi CD400 model and came across this one. What are the improvements over the CD400?

Here's a link http://www.onlinecarstereo.com/CarAu...roductID=13363

 

>>Does anyone have any experience with this head-unit? I was looking for a good price on the Nakamichi CD400 model and came across this one. What are the improvements over the CD400?
>>
>>Here's a link http://www.onlinecarstereo.com/CarAu...roductID=13363
>>
CD400- $339
CD PLAYER
- 24 Bit D/A Converter
- CD-R/CD-RW Compatible

TUNER SECTION
- Presets (18FM/12AM)
- Auto DX-Local
- Preset Scan
- Auto Memory

AUDIO SECTION
- 47 W x 4
- Bass/Mid/Treble
- 6 ch Preouts
- 4 V Preouts (Voltage)
- 1 AUX Input (Analog)
- Variable Sub Out
- Loudness

GENERAL
- 1 Disc Capacity
- Mute
- Detachable Face
- Remote Control
- Rotary Volume
- Clock
- Beep Confirmation ON/OFF
- Internal Amp ON/OFF
- Clock ON/OFF
- AUX In ON/OFF

CD500- $479
CD PLAYER
- 24 Bit D/A Converter
- MP3 Compatible
- WMA Compatible
- Disc Text (MP3/WMA)
- CD-R/CD-RW Compatible
- Changer Controller

TUNER SECTION
- Presets (18FM/12AM)
- Auto DX-Local
- Preset Scan
- Auto Memory

AUDIO SECTION
- 47 W x 4
- Bass/Mid/Treble
- 6 ch Preouts
- 4 V Preouts (Voltage)
- 2 AUX Input (Analog)
- Variable Sub Out
- Loudness

GENERAL
- 1 Disc Capacity
- Mute
- Detachable Face
- Remote Control
- Rotary Volume
- Clock
- Beep Confirmation ON/OFF
- Internal Amp ON/OFF
- Clock ON/OFF
- AUX In ON/OFF

In summary the newer CD-500 costs more, plays more formats, has two aux inputs not one, and display color is blue.