How do I Install a Yamaha YST-SW60 Active Servo Processing Subwoofer System?

The Yamaha YST-SW60 is an external subwoofer with a 50-watt amplifier and Yamaha's active servo technology (AST). AST subwoofers leverage an "air woofer" to increase their bass response. This subwoofer offers great performance coupled with a reasonable cabinet size. It also has a range of connections, making it easy to use with stereos of just about any type. A range of controls are also included to allow you to better tailor its tonal characteristics to your listening room.

Locate the YST-SW60 in a corner of your room, either to the left of your left speaker or to the right of your right speaker. Place it with its front grille at a 45-degree angle, pointing diagonally at the opposing wall a little bit forward of where that wall's 90-degree junction with the next wall. In most cases, you should not place the subwoofer where it will directly bounce its sound waves off of the facing wall.

Ensure that your audio components are turned off and unplugged from the wall. This includes your receiver or amplifier and your YST-SW60.

Find the "Subwoofer-Out" connection on your receiver or preamplifier. It will be either a single or double phono plug. Use an analogue audio interconnect cable with phono plugs on both ends to connect between the output on your receiver or amplifier to the phono plug inputs (labelled as "Inputs) on your YST-SW60. If your amplifier has only one subwoofer output, connect it to either the L or R input on the subwoofer, but if it has two, connect each output to each of your YST-SW60's inputs.

Plug in and turn on your entertainment system, and then set it to play a source which will have a lot of bass so that you can test your subwoofer.

Plug in your YST-SW60 and press the "Power" button on the top of its front panel. Adjust the "High Cut" control to define the highest frequency at which the subwoofer will operate. Placing it in the centre is a good place to start. You can use the volume control to determine its loudness as well.

Fix sound which is less than perfect by flipping the "Phase" switch on the back panel from "Nom" to "Rev". This switch will determine whether the subwoofer complements or cancels out the sound produced by your main speakers, and the correct setting will be immediately audible as the one which produces the most bass.

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About the Author

Solomon Poretsky has been writing since 1996 and has been published in a number of trade publications including the "Minnesota Real Estate Journal" and "Minnesota Multi-Housing Association Advocate." He holds a Bachelor of Arts, cum laude, from Columbia University and has extensive experience in the fields of financial services, real estate and technology.