I have spica angelus speakers, how do I know when the cross over needs rebuilding?


My spicas sound a little dull. I was wondering if the cross over is the cause. How do I check? They are large and it's cumbersome to take to a repair shop. I,m not sure if it's the speaker, my hearing or the fact I have single driver speakers in my other system. Thanks for your thoughts.
brian
128x128brianportugal
I heard S. Angelus on several occasions and while it was an exceptional speaker for the price a number of years ago, I feel replacing it with something new (or even a vintage speaker of better quality) would be a better choice- they just sounded "indistinct".  Even many small monitors these days get exceptional reviews while lacking just a bit of low bass- and more often than not, this is not regarded as critical on many types of music.  
Thanks everyone. I wonder how new caps on the crossover would impact the sound? The tweeters are fine so are the woofers. Just don't sound crisp if that is an audio file term.

Just did a quick search and came across this Spica enthusiast site,  it gives you all the info that you'd ever need. 

http://spicaspeakers.com/specifications/spica-angelus-datasheet.php