Bass Drum O's

O's will improve the sound of any kick drum. The O's hole in the front of a kick drum creates a path of least resistance, focusing the sound waves and allowing both front and back heads to vibrate independently. The result is a noticeably fuller tone and more pronounced attack. Applying the O's protects your drum head and give it a professional look. Perfect mic placement is now possible because the O's creates access to the batter head through the drum chamber.