Hear the Difference We make the finest audio noise suppressors on the market. Listen to the difference between a raw signal and one that has been processed by our unit. Listen Learn the History Forming a business was never in the original plans; we just wanted something that would help us enjoy our personal record collections more fully. Learn More See the Best With our newest unit, the Model 325, we maintain our position as an industry leader in audio noise suppression. Learn More Where is your Packburn? Add a pin to the map to show what city your Packburn is in.