So these are the sizes and spec of the standard speakers? Useful to know if they need to be upgraded at any point.

 

A bit late to the party and bringing a thread back from the dead, but has anyone noticed the massive frequency hole here?

I wonder if a decent pair of crossovers or the correct capacitors might solve some of the weakness of the system.

I am also interested in doing an upgrade by replacing the drivers maybe with something more professional like Hertz let's say.

 

Did anyone try this?