I just had my Rainbow CMX 265 Kicks installed in my '03 M3 this weekend and there is minimal if any midbass coming from the front end. I bought them through Premir Audio (who was awesome to work with and would not hesitate to do business again) and they came in on Friday and installed on Saturday. I know there is a break in period, but seriously there is NO midbass. The factory HK system WITHOUT the 6x9 subs put out 3-4 times the amount of midbass.
I wish I would have taken pics of the install, but they are mounted in the factory location and the doors and deadend to death with 3 Dynamat Extreme door kits for the 2 doors. There is no vibration on the door itself. I can feel a good amount of air being moved by the 6.5s, enough to move a tissue back and forth, but there is no sound, no impact at all. What gives???
My installer contacted a guy named Craig who sells Rainbows on the west cost and he thinks the problem could be a lack of airspace behind the speaker. He recomended we try the following:
1) Wire one side out of phase - tried it, slight improvement
2) Wire both sides out of phase - tried it, no improvement
3) Remove one or two of the 2" gromets to get some air flowing
4) Cut a hole in the metal behind the speaker to get air flowing
The set is getting 150W per channel via an Alpine PDX-2.150. The amp is getting a full range signal from the HU and is HP'd at 80Hz per the CMX instructions.
Anyone have ideas?