Atlantic Technology T70.1PBM Manuel d'instruction - Page 8

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Model T70.1 PBM

with no signal detected from the rest of the system, the amplifier will shut itself off and go into

standby mode. Power consumption in the standby mode is negligible. Standby operation can be

completely bypassed by placing the "Auto" switch in the "On" position. In this mode, the subwoofer

will be controlled by the position of the Main Power switch.

Placement and Operation

Generally speaking, the best location for your new Subwoofer will be in the front of the room, in or

close to a corner (Figure 2). Every room has its own unique sound characteristics, and flexibility in the

exact placement of the subwoofer is always desirable. The closer the subwoofer is placed to a wall and

especially a corner, the more and deeper the bass response you will hear. However, in some rooms,

corner placement can produce too much bass or a "one note" boomy effect. Under such circumstances

the subwoofer may work better away from the wall or corner. You should experiment to find the best

position in your room.

Figure 2:

Typical arrange-

ment for a single

subwoofer in a

home theater.

Helpful Hint: A particularly useful experiment is to place the subwoofer right at the prime listening position

(move that couch or chair out of the way and put the sub in its place). Then play something with lots of good

bass (preferably music), and walk around the room, listening to the subwoofer's response. When you locate an

area that has ample amounts of well defined bass you have found a good potential place to locate the sub.

Dual Subwoofer Placement

When two subwoofers are used you may wish to place them asymmetrically; that is, in slightly

different positions in the room (Figure 3). This will reduce common mode room resonances that

typically occur with symmetrically placed subwoofers. Another good option is to place the subwoofers

in the same corner. Several tests have shown this to be a viable means of producing smooth bass

response in many rooms.

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