Genesis Advanced Technologies S4/8 owner manual a b s o l u t e f i d e l i t y

a b s o l u t e f i d e l i t y ™

The final touch will be a fifth subwoofer added into one corner of the room. This will excite all room modes equally, so pick any convenient corner. In asymmetric rooms, find a corner that makes the system sound smoothest. This subwoofer can be used to also augment the nearest speaker to make it full-range.

Notes:

1.Bass frequencies are not localizable below 60Hz. With a wavelength of over 18 feet (6 meters), it is possible to use a subwoofer with the low-pass set at 60Hz to augment nearly any loudspeaker in a reasonably sized room (longest dimension < 18 feet).

2.The response of any subwoofer (or even the bass response of any loudspeaker) is very placement dependent. Whether it is placed against a wall, into a corner, or on a pedestal will change its response and gain. Hence, it will be necessary to tune EACH subwoofer individually before tuning them all together.

3.Each subwoofer in a multi-LFE installation will have a different frequency response. Each will excite different room modes depending on positioning. Multiple subwoofers will more likely smooth out such bass problems, however, while theoretically more subwoofers are better, five is really all you need in a reasonably sized room.

4.Sound waves are 3-dimensional. Hence, placing subwoofers at differing heights in the room will also help even out the bass response of the room.

For even more information on setting up multiple subwoofers, check out the Genesis white paper “Setting up an absolute surround distributed bass multi-channel music/movie system”.

Good luck!

S4/8 Owners Manual Ver 0.1

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