Better speakers will give you better quality of sound.
I'm a fan of Crutchfield.com, as it has a 'what fits your vehicle' option that will show you what replacement speakers will fit in your front and rear doors.
Thank you, I was thinking of a small upgrade to get somewhat cleaner sound. Any idea if changing the rears helps. My 2013 accord is the same way. Rear is just. muffled sounding crap. Honda said normal so I'm assuming same with the crv.
The LX has 160 watt audio system with 4 speakers.
The EX has 180 watt audio system with 6 speakers.
The EX-L has 180 watt audio system with 8 speakers.
The Touring has 330-Watt Premium Audio System with 9 Speakers, including Subwoofer.
Looking at the actual part information for the speakers they're described as:
Speaker Assembly, Rear (17CM) (Pioneer)
And that speaker is the same across the LX, EX, and EX-L CR-V models, and is also used in Accord, Civic, and Insight models.
Looking at the touring there are three different types of speakers:
Speaker Assembly, Woofer (20CM) (Premium) (Foster) [mounted in the cargo area]
Speaker Assembly, Tweeter (Normal) (Foster) [mounted in the front doors next to the outside mirrors]
Speaker Assembly (17CM) (Normal) (Foster) [mounted in all four doors]
I would start with upgrading the four speakers in your LX to something better.
After you've done that drive it for awhile, and then you can decide if you also want to upgrade the headunit.