31. They may also be present in front of woofer cones in some loudspeaker designs. 32. Brooks remains an all-conference woofer . 33. Hersman posed for a picture with his brother Rob and a pack of regular woofers . 34. Five $ 1, 500 Cello speakers and four sub-woofers surround the audience. 35. To re-engineer a piece so that it sounds better on a car woofer . 36. They each have a 3-inch woofer and a 1-inch dome tweeter. 37. However, there is often a problem with integrating such a woofer with the electrostatics. 38. The loudspeakers have built-in amplifiers and feature a feedback sensor on the woofer . 39. Some of these systems had speakers with removable covers, exposing the woofer and tweeter. 40. Coupled with the Transar towers was a sub-woofer driven by a dedicated amplifier.