Not the highest end system, but can definitely rock out - as well as present pretty convincing soundstage, vocals, imaging and instruments. Configuration subject to change as whims and budget allow.
As I have found in over 45 years having many different system speakers. Eggelston Andra's, Thiel CS6's, Vandersteen 5A's & JBL Lancer L55's. Speakers need to be at ear level. Wharfedale Speakers and others recognize the significance of this with the speaker stands they sell and have developed. Are you really getting the most out of your JBL's at that low height raised a bit in the front? My JBL Lancer L55 I have. When setting them up on an 8-inch stand to 16 inches. Well, it was like night and day. Again, at a sitting position having any speaker at ear height is the key that will give you and anyone a beautiful musical experience.