Yamaha HS8S 8 Inch Powered Subwoofer in Black Production Switchers If your lens doesn't have

If your lens doesn't have a support foot

8" total length allows you to use it while wide-angle lenses

so each camera is clearly numbered and easy for presenters to see

4 maximum aperture enables working in low-light conditions and also provides increased control over depth of field for achieving shallow depth of field effects

Yamaha HS8S 8 Inch Powered Subwoofer in Black Production Switchers If your lens doesn't haveThe Yamaha HS8S 8 Inch Powered Subwoofer in Black features an eight inch cone woofer that is capable of up to 150W of output. It can reproduce frequencies down to 22Hz and features variable low and high cut filters between 80 and 120Hz. You can connect to the HS8S through its stereo XLR or 1 4" TRS inputs. It also has stereo XLR extension sub outputs.