JBL 305PMKII Руководство по эксплуатации онлайн [8/22] 758108

• Ideally, 3 Series MkII Studio Monitors should be placed on suitable speaker stands, rather than on the

work surface. This will reduce resonance and deterioration of low frequency performance caused by the

speaker’s mechanical coupling with the work surface.

• For optimum imaging, the left and right speakers should be placed symmetrically in the room,

so each speaker is the same distance from adjacent walls and reective surfaces.

• The speakers should be placed so the position of the listener and the two speakers form an equilateral

triangle. Adjusting the distance between the speakers will affect the quality of bass heard at the listening

position. You can experiment with speaker placement to nd the placement that produces the preferred

bass response, imaging, and—when listening to stereo material—produces a strong “phantom center", in

which vocals and some instruments seem to originate from a point between speakers.

• The listening distance can be determined according to your preference, the acoustics of your room, and

the maximum SPL (sound pressure level) you want to hear at the listening position. You can nd the

speaker’s maximum SPL at 1 meter in the Specications section at the end of this manual. Each doubling

of listening distance will reduce the SPL at the listening position by as much as 6dB in an acoustically

absorptive room, but only 3 or 4dB in an acoustically reective room.

LSR310S subwoofer placement: The low frequency driver of the LSR310S is mounted on the bottom panel of

the subwoofer. Before placing the subwoofer, make sure the position on the oor is free of any large objects that

can interfere with or damage the woofer.

In a stereo system, the LSR310S subwoofer should be placed directly on the oor, located between the left

and right speakers. In a surround sound system, the subwoofer can be located between the left and center or

between the right and center channel speakers. The distance of the subwoofer from the listening position can

be adjusted to produce the optimum bass in the system. Placing the subwoofer close to a wall or in a corner

generally will increase the amount of bass heard in the room. Experiment to determine the Subwoofer placement

that produces the best balance and quality of bass in the system.

MIX POSITION MIX POSITION

LEFT

SUB / LFE

RIGHT

CENTER

LEFT

SURROUND

RIGHT

SURROUND

LEFT

SUB / LFE

RIGHT