150W Powered Studio Subwoofer with 8" Speaker, Balanced XLR Inputs and Outputs, Balanced TRS Inputs, Low Cut, Phase, and Level Controls
 
Yamaha HS8S Features:
8" bass-reflex powered subwoofer delivers low frequencies down to 22Hz
22Hz - 150Hz frequency response
High-power 150W amplifier designed expressly for low frequencies
Low Cut switch, Low Cut control (80-120Hz) High Cut control (80-120Hz)
Phase switch lets you set up your subwoofer with simple connections and no additional equipment
XLR and TRS inputs; XLR L and R outputs
 
Tech Specs
Powered:   Yes 
Speaker Size:   8" 
Driver Type:   Cone 
Total Power :   150W 
Frequency Range:   22Hz-150Hz 
Input Types:   2 x XLR, 2 x 1/4" 
Output Types:   2 x XLR 
Height:   13.8" 
Width:   11.8" 
Depth:   15.3" 
Weight:   27.6 lbs 
Manufacturer Part Number:   HS8S