You have two problems. As you already found out, the JM are very bright and tinny IMO. The second issue is that amp. There are a couple of speakers out there that will give you better (not great on a bike, but certainly better) bass, but that clarion doesn't have the intestinal fortitude to push them.
What year bike? 13 and down look at BT 7.1 with either a BT 2180 or CV B52 amp. 15 and up look at arc moto 602 with same amps (7.1 won't fit in 15 and up).
In my opinion the arc 602s are just slightly above average at low to mid volumes, but they really go into beast mode when you put the power to them. To me the BT 7.1 is a better overall speaker than the 602, with a little less bass available but what I think is better sound quality at all volumes and they will get plenty loud.
What year bike? 13 and down look at BT 7.1 with either a BT 2180 or CV B52 amp. 15 and up look at arc moto 602 with same amps (7.1 won't fit in 15 and up).
In my opinion the arc 602s are just slightly above average at low to mid volumes, but they really go into beast mode when you put the power to them. To me the BT 7.1 is a better overall speaker than the 602, with a little less bass available but what I think is better sound quality at all volumes and they will get plenty loud.