I've had pi 4's with the Eminence Omega woofers and they had good bass definition; very easy to tell the difference between electric bass's, cello's, string bass's, etc. I've got the JBL 2226's now, and you can hear the bowing, plucking, etc. of the strings for each note. Very nice. No super low frequencies, but plenty low enough for bass guitar and string bass.