What I have: Stock head unit, 50x2 xtant amp, dimond m5 components (tweeter in front of door handles). These crossovers have an output for rear fill which is -10dB.

I'm thinking of either boston acoustics fx4 90-20000 Hz, sensitivity = 92 dB
or diamond m3 4inch 75-20000 Hz, sensitivity = 89 these also have adjustable tweeter angle and the description says they have extended speaker travel.


Suggestions Please!

 

I have my stock speakers back there right now but they don't produce much sound. Should I just run the rears from the amp (down to 2ohms)? Would this make too much distortion? Maybe then I'd even consider components back there. (4 inch M5) I'd have to play around with the best tweeter position to make it sound balanced.

 

I've never used this brand before. Their web site gives no indication to what the magnet width would be on the FX4. Even magnet weight would be of some help!