Speaker Comparison

[SupremeWill]

Looking to upgrade my factory Alpine speakers. I see most people use Infinity. What would be my best option the Reference series or the Kappa series?? Thanks in advance.

 

[JJRamTX]

Looking to upgrade my factory Alpine speakers. I see most people use Infinity. What would be my best option the Reference series or the Kappa series?? Thanks in advance.

Kappa are a little better from what I know but they may also be bigger and possibly have fitment issues.