![]() ![]() I like to bring the sub's volume up to the point where I just start to hear the bass filling out the speakers' sound, but some listeners prefer more pronounced bass fullness. Then set the sub's volume control to provide the level of bass support you want. With small speakers with 4-inch or smaller woofers, you'll set the sub's crossover frequency at 100Hz or higher, and with speakers with 5-inch or larger woofers, 80Hz or lower. The sub will use its built-in crossover (aka "low pass" filter) to determine the upper limit of the frequencies produced by the subwoofer. With this arrangement, the stereo speakers and sub receive all of the bass, midrange, and treble frequencies. The top picture has just the speaker cables connected to the stereo amp the bottom picture has the speaker and subwoofer cables connected. That means you have to double up the connections on the receiver or amplifier (see photo below that illustrates that connection method). Most, but not all, subwoofers have these inputs they get connected using speaker cables to the same speaker output jacks on your receiver or amplifier that are also hooked up to your speakers. So instead of using those connections, we'll use the subwoofer's speaker-level, aka "high-level," inputs. Stereo receivers, pre-amps, and integrated amplifiers rarely have subwoofer output jacks or offer bass-management options. The subwoofer is hooked up to the receiver with a single interconnect cable. AV receivers feature bass management to direct the low bass frequencies to the sub and the midrange and treble frequencies to the speakers. Subwoofer connection to a two-channel system differs from the methods used in home theaters. A subwoofer's volume and crossover controls So adding a sub is not just about adding more and deeper bass rather, a properly integrated subwoofer can improve the overall sound of the system. Subs can provide a foundation to the sound that few speakers can muster on their own. Subwoofers are used in most home theater systems, but subs can also radically improve the sound of stereo systems - and not just the ones with small speakers. ![]()
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