Custom & broad-band bass traps, designed to combat standing wave problems in recording studios and listening rooms. The BASS - O - NATOR: an attractive and effective room tuning device. Designed to combat standing wave problems in recording studios and listening rooms. The resonator is tuned to "trap" problem bass frequencies. In addition, it will absorb mid/high frequency room reflections. We calculate the frequency of the standing waves from your room dimensions, and individually tune the resonators to take care of the problem. Product specification: Both versions of the Bass-O-Nator are the same size and price, the only difference is the frequency they deal with. The broad-band model is designed to combat problems between 80Hz - 220Hz, whereas the custom model is build to spec and only deals with a single problem frequency. Dimensions: 1200 x 600 x 160 mm The standard colour is midnight blue but custom colours are available for an additional fee.