Used - Very Good: JBL Cinema 610 5.1 CH Home Theater Speakers System with Powered Subwoofer and Dedicated Center Speaker Home Audio Speakers - Newegg.com
Professional Loudspeaker Package with 2 JBL Powered Bluetooth IRX108BT Loudspeakers and a Powered IRX115S Subwoofer (Crowds up to 300)
JBL ES250PB Powered Subwoofer (Black) ES250PBK B&H Photo Video
JBL SCS-300.5 Complete 6-Piece Home Theater Speaker System