Originally posted by nguyendot It's not a matter of opinion, more voltage reduces the likelihood of noise introduced into the system. This raises signal to noise ratio, higher s/n ratio = better sound quality.
Also.. the Alpine mentioned CDA-7995 is a dead head, with no internal amplifier, there is better quality, less interference, (along with the blackout mode to turn off the face).
MP3 is definitely better... AND existant on the CDA-7995. It is non-existant on the Panasonic CD-DF903U.
Panasonic uses Sirius, Alpine uses XM. XM has been proven in car audio magazine, and many others to have better sound quality over its broadcasts.
Frequency response on Panasonic: 20-20khz
Frequency response on Alpine: 5-20khz
CD signal to noise ratio Panasonic: 96db
CD signal to noise ratio Alpine: 105db
No cd-text on the panasonic
Cd-text on the alpine
Angle-adjustable face on the Alpine
Stationary on the Panasonic.
In the case of the 2 he's looking at, the Panasonic has 5v preout, and the Alpine 4v.
The panasonic has an aux input, the alpine optional (29.99 for the adapter).
All in all, you get what you pay for. The alpine he's looking at IS better, clearer..etc.