Klipsch Replacement Woofer Speaker for R-120SW 12" 4Ω | Reverb
Amazon.com: Klipsch Synergy Black Label Sub-120 12” Front-Firing Subwoofer with 200 Watts of continuous & 400 watts of Dynamic Power, and Digital Amplifier for Powerful Home Theater Bass in Black : Everything Else
Klipsch Reference Premiere 1400 14" 1000W Subwoofer black 1070649 RP-1400SW - Best Buy