Verified answer

I see no significant difference other than looks.

The 152 just a newer version of the 148.

It a remember of signal.. and shortage of your music by technique of the time it reaches your amp...I favor 4+volt outputs...through an amplifier then received't could be grew to change into as a lot as make up for the losses in the signal ..and the further you ought to take position the amp's income...the further noise is also amplified. in different words.. the further music signal voltage the a lot less noise which will enter your equipment and be amplified through noisy ecosystem of a automobile....gasoline pumps, alternators ecu's etc etc etc ......( aka that demanding little hiss between your songs) which truthfully harms extra then it does sturdy.

absolutely no difference i can see from comparing the 2 from the kenwood site. other than the fact that one has blue light and one has red :P