KRK S12.4 Pro Subwoofer 12" 12inch Studio Sub - Brand New - Belfield Music | eBay
KRK S10 Generation 4 10" Active Powered Studio Recording Subwoofer Sub w Cables | Reverb
KRK Systems - The wait is over! The new KRK Pro Subwoofer Series is officially available, with 8-, 10- and 12-inch options. Building on KRK's legacy of sonic accuracy and performance, the
Review: KRK V8 S4 Studio Monitors & 10S.4 Sub - Magnetic Magazine