LSR310S

I’d probably just go Yamaha HS5s, HS7s, or HS8s and then add a sub like the Yamaha HS8S or JBL LSR310s. The Yamaha sub I’ve heard is more accurate but doesn’t pack a big punch. Whereas the JBL is the opposite. I’ve heard great things about Atoms stuff but a bit more expensive.

what JBL speakers do you have? Active monitors I assume? For good bass you will need a sub with 80 hz crossover. So it takes care of any frequency at and below 80hz, and monitors will take care of higher frequencies. This will add deep bass to your sound and more importantly open up your monitors wh

Piano needs subwoofer as well, as the lowest note has a frequency of 27.5 hz You would do better with a sub with crossover and two smaller monitors rather than just two midsize monitors. JBL LSR310S us a good budget option. Edit: a set with monitors is right within your budget https://www.sweetwater