ETC DN7.5-2650 Donut, 7.5-Inch / 190-Millimeter with 3.5-Inch / 89-Millimeter Aperture (For XDLT 26 And 50) - Black option-title-20-Ch w/ USB The lightweight HD9 features an

The lightweight HD9 features an adjustable headband

Length 17 3/4" (measured from inside of bracket to center of swivel bolt)

Yamaha CBR15 Loudspeaker

With a LED life of approximately 50

and bring whole mixes together with bright

ETC DN7.5-2650 Donut, 7.5-Inch / 190-Millimeter with 3.5-Inch / 89-Millimeter Aperture (For XDLT 26 And 50) - Black option-title-20-Ch w/ USB The lightweight HD9 features anETC DN7. 5 2650 Donut, 7. 5 Inch 190 Millimeter with 3. 5 Inch 89 Millimeter Aperture (For XDLT 26 And 50) Black Donuts help sharpen gobo projections by reducing the diameter of the output lenses. Similar to squinting an eye, this reduction helps improve clarity of the projected gobo, however a reduction in brightness is a side effect.