KRK
KRK S10.4 S10 Generation 4 10" 160 Watt Powered Studio Subwoofer
Edifier
Edifier T5 Powered Subwoofer - 70w RMS Active Woofer with 8 inch Driver and Low Pass Filter
Yamaha
Yamaha 8" 100W Powered Subwoofer - Black (NS-SW050BL)
Genelec
Genelec 7040APM 50W Active Powered Studio Subwoofer with 6.5 Inch Speaker - Stereo or Multichannel - Built in Bass Management System - Crystal Clear Sound - Black
KRK
KRK S8.4 S8 Generation 4 8" 109 Watt Powered Studio Subwoofer
Mackie
Mackie CR-X Series, 8-Inch Multimedia 200w Subwoofer with Professional Studio-Quality Sound, Bluetooth and Desktop Volume Control (CR8S-XBT)
Genelec
Genelec 7050CPM 70W Active Powered Studio Subwoofer with 8 Inch Speaker - Stereo or Multichannel - Built in Bass Management System - Crystal Clear Sound - Black
Audioengine
Audioengine S8 Powered Subwoofer Speaker - 250W 8-inch Home Subwoofer with Built-in Amplifier and Dual Audio Inputs for Home Speaker System (White)
Adam Audio
ADAM Audio T10S Subwoofer for Recording, Mixing and Mastering, Studio Quality Sound