This is all very subjective but when I was comparing them not only do the 130's crush the 120's in terms of bass output, I believe they are exponentially more dynamic sounding and my perception was woofer distortion is likely much lower with the 130's. I could hear much more detail from the 130...
I just got the JBL stage a130's and am running them from my MacBook off a Loxjie a30. Amazing setup for around $380 all in when purchased on sale. I ordered the a120's to compare and after a few songs I boxed them up and sent them back. No comparison to the a130's. Anyhow I've got them on my...