- Genesis Surround ServoSubTM 2/12t Owner's Manual

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Placement of the Subwoofer

One of the most common reasons to buy a subwoofer is to augment

your existing loudspeakers when they do not provide enough bass for

your liking. In general, the S2/12t is used to augment surround or rear

channel speakers in a multi-channel system, and would be placed in a

room corner closest to the surround/rear channel that you are going to

augment. In this case, you should also connect the LFE input of the

S2/12t to the LFE/Subwoofer output of your processor (or daisy-

chained from the nearest Genesis subwoofer with an LFE output).

Since the S2/12t has speaker-level inputs for left and right channels,

you can place a single sub against the back wall between the two rear

speakers of your multi-channel system. If you are using a 7.1-channel

system, the S2/12t’s dual inputs can also be connected so as to

augment both surround and rear channels.

If you are using only one S2/12t for just the LFE channel, place it in

one corner of the room. Try all available corners and pick the one that

sounds best. Note that corner placement of a subwoofer excites

EVERY bass mode in your room, the good, the bad, as well as the

ugly. In a very well designed room, this may be the ideal placement. In

a badly designed room, this could be a nightmare.

A useful excel spreadsheet can be found on the Stereophile Guide to

Home Theater’s website at www.guidetohometheater.com. “The

Sweet Spot” about 2/3 of the way down the page, has the spreadsheet

to check the acoustics of your room.

Adjusting the Controls

Locate the spec sheet for your existing main L/R loudspeakers, and

adjust the Low Pass frequency on the S2/12t so it matches the –3dB

point of your L/R speaker’s frequency response (If you can’t find that

the -3dB frequency, set the S2/12t to 63Hz – the 12 o’clock position on

the knob). For speakers of general sensitivity, the Bass Gain and LFE

Gain can also be set at the 12 o’clock position.

Note: Should your woofer amplifier unexpectedly turn off and you are

unable to turn it back on, you may have overheated or over-driven the

amplifier. It can take up to thirty minutes for the amplifier to turn back

on. Be patient. The two most common causes for this are poor

ventilation and too much amplifier gain (ie, the amp is being driven too

hard). If the amplifier is well ventilated and it still shuts down then you

may have the volume control turned up too high. Refer to the section

on increasing the low frequency response of your speakers without

turning up the volume control.