Each brand of sub creates a unique sound and with these subs its up to you to determine which is to your liking. its not like trying to determine whether a audiophile sub or an alpine sub is better because these subs are on the same level, and have equal reliability. I prefer the sound of alpine...
im guessing since you said plexiglass you have bandpass box, if you do theres you problem go sealed or ported. bandpass is for show, if thats not it then your gonna need to upgrade to a more pwoerful system.