I have recently become the owner of a 2007 Sportback with the Concert "audio" system (non Bose). The sound is not too shabby but like most factory fit systems it lacks "something" (mainly tight bass and midrange definition). I still have some Focal speakers lying around and was wondering if it is possible to replace the factory fit ones with these. I know it won't do much for the bass but I was hoping to improve some midrange definition. So here's a few questions:
Will the standard rear amplifier drive 4 Ohm units or do they require 2 Ohm like the Bose system?
Does the rear amp use a high pass filter for the rear speakers or just a low pass for the sub?
Does the concert radio have any hidden EQ settings like the Symphony? My previous car had a Bose system and if you unhooked that the full range of EQ presets became available.
Knowing me I will probably end up replacing the whole system anyway as i also still have a 5 CH Alpine amp lying on the shelf but l don't feel up to all the hassle just right now. I really like AndyMacs stealth sub solution