I could could use some advice on tweeter location.
There are three options that come to mind:
1. Flush mount on the partition behind the seats (same board the speakers are mounted on)
2. Surface mounted behind the seats on one of the various flat, but angled surfaces
3. In the dash area*
*Option "3" is really the big unknown, not sure how high freqs in the front with mids/lows behind will sound. Any experiences?
i have a huge experience in that but this is an other story , i can simply say your setting is wrong for what you expect : listen well the music, roof open in fast speed in highway, separate tweeter is only valid in closed car and in front speaker.
in open car the setting must be 13 cm in front (w or w.o tweet separate) and in rear 16cm or 21 cm 2 or 3 way co-axial.
Your amp is slim & nice but will not be enough when you will need power
