Speaker Hole Bass Reflector (Sizes)

The box that houses speakers has audio bouncing around inside it until it leaves the box through the hole in the back, producing very low bass that seems to have an echo to it from the reverberation inside the box. With the Speaker Hole Bass Reflector mounted over this hole, it reflects the bass out in every direction to the rest of the room, filling it evenly with bass. As the bass hits it, the reflector vibrates like a speaker, turning it into a passive speaker as it sends the bass out to the room. This passive speaker effect cleans up the bass, removing the echo sound from inside the box and making it sound crisp and defined. Since installing these on my surround speakers, I have enjoyed more beautiful bass than I had before.

The different sizes have the following distances between the mounting feet as measured across the point of the cone:
Extra Small: 9 cm
Small: 9 cm
Medium: 13 cm
Large: 17 cm

The price is due to the size of the cone. Bass needs size to make it sound right, and the depth is necessary to spread the bass out to the room. It's actually small for a household object but large for a 3D print.

I don't receive any profit. I've set the prices to Shapways' costs.