My 2006 TL with Navigation currently has Rockford Fosgate 4 corner speakers with Kicker Rear Sub. Alpine MRXV60 5 channel to be soon installed to power up those speakers.

I'm still torn on between getting the above mentioned RF sound processor or going ahead and install the Alpine amplifier without sound processor (I know I can install the processor later).

Can somebody describe in detail how it would sound with the processor installed? A car audio dealer guy says you would hear some sort of "echoing" effect.

 

save your money on the 3.sixty.2 and go with a JBL MS8, IMO it's much better and if your questioning about the echo, it's going to be a bit cheaper and easy for you to setup and like

The "echo" is simulated 5.1 where the 3.sixty adds/subtracts time delays for each speaker signal so the front speakers if tuned improperly will get the signal before the rears so it sounds like the sound is coming from the front and taking it's time to get to the rear.