JSR 655 - JBL Audio User Guide / Operation Manual. Page 5

4

Press this button to turn the power
on. Press again to turn the power off.
It can also be used as a system
power button, if you connect the
other components to the switched
outlets.

In POWER OFF state, the

POWER indicator will light up orange
and power is partially supplied to the
infrared remote control receiver and
the memory circuitry.

These switches allow you to select
various combinations of speakers as
follows:

■

To play 1 pair of speakers, push
only the speaker 1 switch in.

■

To play a second pair of speakers,
push only the speaker 2 switch in.

■

To play both pairs of speakers,
push both 1 and 2 switches in.

■

To use headphones for private lis-
tening or monitoring, leave both 
1 and 2 switches pushed out.

If both speaker switches 

are pushed in and only one set of
speakers is connected to the
receiver, no sound will be heard.

Stereo headphones can be plugged
into this jack for private listening.
Headphone impedance should be
between 8 and 2K ohms. Best results
will be between 200 and 400 ohms.

Modifies the low-frequency sound of
the left and right channels as much
as 

±

10dB. Set this control at a suit-

able position for your taste and room
acoustics.

Modifies the high-frequency sound of
the left and right channels as much
as 

±

10dB. Set this control at a suit-

able position for your taste and room
acoustics.

This control is used for balancing the
relative sound volume of the left and
right channel speakers. Clockwise
rotation reduces the volume from the
left speaker, counterclockwise rotation
reduces the volume from the right
speaker.

Press this switch to select the de-
sired surround mode. The mode is
changed as below, when it is pressed
in succession.

The mode indicator, 

fl

on the display

window, indicates the selected mode.
In the OFF mode, the indicator disap-
pears.

Delay Time (see page 16)

This button operates only in DOLBY*
PRO LOGIC* and DOLBY 3 STEREO
mode. The mode changes as below
when the button is pressed in
succession.

NORM

WIDE

NORM

WIDE

PHANTOM

DOLBY PRO LOGIC

DOLBY 3 STEREO

HALL

OFF

The display window shows each
mode.

Select this mode if you use a

small center speaker. The bass
sound of the center channel is repro-
duced from the front speakers,
because the small speaker cannot
produce enough bass.

Select this mode if you use a

medium-to-large center speaker. The
bass sound is reproduced from the
center speaker.

Select this mode if you

don’t use a center speaker. The cen-
ter speaker’s sound is reproduced
from the front speakers.

This button operates only in DOLBY
PRO LOGIC and DOLBY 3 STEREO
mode. When the button is pressed, a
2-second test tone is generated in all
channels (Left, Center, Right, and
Surround) in succession. The display
window shows TEST L, C, R and S in
succession.

The letter L, C, R or S (in DOLBY
PRO LOGIC mode) or L, C or R (in
DOLBY 3 STEREO mode) blinks 2

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