It has two air woofers for the very low bass frequencies and uses the cone for the mid and higher range bass frequencies. The cabinet is, like the rest of the Soavo units, made of birch and is available in several different color finishes. The overall frequency response is from 18Hz to 160Hz. The unit also has three preset bass settings for different types of media (movies versus music, for example) that can be accessed with a button on the cabinet. It also has a sleep timer that shuts off the woofer in case it is left on, and a remote control that allows adjustment of the presets, volume and the high cut filter. The 900SW has a high price point.
