I have the JBL 4319, which are a close cousin to the L100 and drive them with a 90W/channel Marantz PM15S2b and have great, deep and controlled bass. It's 12" woofer is adroitly handled by the Marantz.
All the best,
Nonoise
All the best,
Nonoise
JBL L100 Amplifier Recommendations