วงแหวน Bass Drum o s รุ่น HC4

OVERVIEW
Adds Clean, Sturdy Port Hole to Bass Drum
Lets More Air Escape
Drier, Punchier Tone
Excellent for Mic Placement
Foam Lining Prevents Any Rattles
Easy to Install
ITEM DETAILS
Bass Drum O's make it easy for you to add a 4",5'',6'' port hole to your bass drum that looks good and stays that way. Many drummers choose to port their bass drums to let more air escape for a drier, punchier tone, and it makes mic placement much easier when recording or playing while amped.

Installation is simple - place this chrome ring against your bass drum head, mark the circle it makes, and cut that portion out with the handy Bass Drum O's head cutter or an exacto knife. Clean the area around the hole to remove dust, install the male half of the O into the front side of the head, and snap the female half of the O into the male half from the inside.