Dynaudio SUB 250 SAT 用户手册

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Operation
Dynaudio Sub 250
13
Positioning possibilities
Moving the subwoofer closer to walls and corners in particular will generally increase 
the amount of bass. Although the extra amount of bass can be compensated for by 
reducing the volume level of the subwoofer relative to the rest of the system, this can 
result in uneven bass response at the listening position. You can try starting with 
placement in a corner and experiment by gradually moving it out of the corner or 
further away from the wall. Try to locate the position which yields the best compromise 
between position, volume and even bass response. Note that every time that you 
reposition the subwoofer (even if it’s over a short distance) you may need to adjust 
the level and phase settings again.
Corner placement
This placement yields maximum boost of bass level but potentially uneven distribution 
of bass in the room (room-modes), particularly if the room is square or shoe-box 
shaped.
X From the listening position, check if the bass is even across the entire bass 
spectrum. If not, move the subwoofer out of the corner. Try moving it along either 
wall.
Next to wall, away from corner
This position still provides considerable boost but less than the corner placement as 
above. Room-modes can also still be considerable but less so than with corner 
placement.
X From the listening position, check if the bass is even across the entire bass 
spectrum. If not, move the subwoofer away or towards your listening position until 
the most even response has been obtained. 
X Avoid placing the subwoofer exactly half-way or at a quarter of the wall’s length.
Free standing, away from wall and corner
This position will give least boost compared to wall or corner placement, but in general 
offers the best flexibility at achieving most even bass distribution at the listening 
position.
X Avoid placing the subwoofer exactly half-way or at a quarter’s length of either 
sidewall.
X Particularly in smaller square or “shoe-box” shaped rooms the free standing 
position is recommended.
Using multiple subwoofers
By using carefully positioned multiple subwoofers it is possible to even out the 
different room-modes and thus create a more coherent overall bass response in the 
room. It is worth experimenting with different locations around the room for the 
additional subwoofers, even using the rear of the room. As adding subwoofers will not 
increase the effect of room-modes, even adding a subwoofer without much care or 
thought to positioning is likely to help even out room-modes.