Audio Upgrade for 2015 GLK
My intention is to replace either the speakers OR add an outboard amplifier (or DSP/amp). So my questions are:
1) which do you believe is the weaker link in the standard package, the speakers or the amp? Which upgrade would give the biggest bang for the buck?
2) how many watts is the standard head unit (my understanding is that there is no separate amp)?
3) does the standard head unit have a pre-amp out or do you need to use line-level outputs to a new amp? Is a fiber interface required?
THANK YOU!






