JBL P81, P941 , Painting the Frame

It is highly recommended that you

make front-panel control adjustments

before installing the grille. Experiment

with settings and carefully listen to

ensure that the proper adjustments

have been made.

Tooptimize the P81 and P941 for best

performance:

1. Refer to the Loudspeaker Placement

section on page 8 for information

about loudspeaker installation.

2. Set the High-Frequency Level control

to 0 (different listening rooms may

require other High-Frequency Level

control settings).

3. Set the Low-Frequency Boundary

Compensation control to the appro-

priate position.

•Select the “off” setting if the speak-

er is mounted at least 4 feet away

from adjacent walls or boundaries.

•Select the “on” setting if the speak-

er is mounted close to one (or pos-

sibly two) or more adjacent walls

or boundaries. In the “on” position,

system output is reduced below

approximately 400Hz to offset the

increased low-frequency support

due to the boundary.

4. Begin playback of a familiar music or

film source.

5. Listen from the primary listening

position, increasing volume to a

comfortable level.

6. Adjust the High-Frequency Level

con-

trol on each P81 or P941 to change

high-frequency balance and timbre.

7. Adjust the Listener Axis control

depending on the position of the

primary listening location. Refer to

Figure 19.

•Select the “high” (up arrow) setting

if the speaker is mounted so that

the listener is above the tweeter

level.

•Select the “on axis” setting if the

listener location is directly on axis.

•Select the “low” (down arrow) set-

ting if the speaker is mounted so

that the listener is significantly

below the tweeter.

When the loudspeaker has been

mounted upside-down, (with the

woofer higher than the tweeter), refer

to Figure 19. The listener axis control

settings function in the opposite manner

as normal operation:

•Select the “low” setting if the

speaker is mounted so that the lis-

tener is at tweeter level or above.

•Select the “high” setting if the

speaker is mounted so that the

listener is below the tweeter.

8. Set the High-Frequency Tilt switch to

“+” if your listening position is far off

the tweeter axis; otherwise, leave it

at “0.”

9. Repeat these steps to optimize per-

formance of the second P81 or P941.

NOTE: For best results, set the High-

Frequency Level, High-Frequency Tilt,

and the Listener Axis controls to the

same positions on both loudspeakers.

Painting the Frame

Proper surface preparation is critical

for best results. Use spray, roller

(smooth), or a pad to apply the paint.

Clean and prime the frame surface

prior to painting.

1. Place frame on a protected work

surface.

2. Install plastic paint mask (included)

into the frame.

3. Clean front edges of frame face by

gently rubbing with a soft rag damp-

ened with rubbing alcohol.

4. Apply one coat of white or neutral

color water-based primer and let dry.

5. Apply one to two coats of paint for

desired finish.

OPTIMIZING PERFORMANCE

Figure 19: Listener Axis Control Upright Speaker Placement

Tweeter

Woofer

Set Listener Axis Switch to “High” if

listening position is at tweeter level

or above.

Set Listener Axis Switch to “Low”

if listening position is below

tweeter level.

Set Listener Axis Switch to “High”

if listening position is below tweeter.

Set Listener Axis Switch to “Low”

if listening position is at tweeter

level or above.

Inverted Speaker Placement (woofer is above tweeter)

Woofer

Set Listener Axis Switch to “on axis”

if listening position is directly at

tweeter level.

Tweeter

Woofer

Tweeter

Set Listener Axis Switch to “on axis”

if listening position is directly at

tweeter level.

Wall

Figure 19: Listener Axis Control Upright Speaker Placement

P81, P941 OM 2/18/05 10:55 AM Page 12