JBL SA750, Руководство пользователя

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EN-13
LISTENING
Listening Using Headphones
The headphone socket ( PHONES ) accepts
phones with an impedance rating between 16Ω
and 2kΩ, fitted with a 3.5mm stereo jack.
By default the pre-amp outputs and speakers are
muted when the headphones are plugged in.
The speakers and pre-amp outputs can be
configured to remain active when headphones
are connected using the Headphone Override
function in the setup menu. See "Phones Ovr" on
page EN-17 for more information.
The headphone output is always active, unless
the amplifier has been muted.
Balance Control
Use the balance control on the front panel to
move the sound stage from left to right.
Direct Mode
The SA750 allows the option to bypass certain
elements of the audio processing to allow for a
purer listening experience.
Analog Direct
In order to apply Dirac Live room correction the
SA750 converts all analog inputs to a digital signal
using a high quality Analog to Digital Convertor
(ADC). Once the signal has been processed by
the on board Digital Signal Processor (DSP) it is
converted back to an analog signal using a high
quality Digital to Analog Convertor (DAC).
The DIRECT function bypasses the ADC, DSP
and DAC to allow the analog signal to be sent
directly to the preamp stage for the purest signal
path.
An icon on the display indicates if the direct path
is enabled for the current analog input.
Analog direct is enabled. ADC, DSP and
DAC are bypassed.
When Analog Direct is enabled DIRAC room
correction cannot be applied.
Processor Mode
Processor mode can be assigned to most Analog
inputs. In this mode, the volume is set to a fixed
level.
This mode allows the use of the SA750 to be
used in conjunction with a AV receiver in a
combined home cinema and two channel listening
environment.
Please refer to "PM Input" on page EN-17 for
details on how to specify which input is to be used
in processor mode. For setting the desired fixed
volume level, please refer to "PM Input" on page
EN-17.
Pre-Amplifier Output
To use the SA750 as dedicated pre-amplifier, or
as part of a bi-amped system, connect the
sockets to the input sockets of your power
amplifier.
See "Bi-Amping" on page EN-11 for details of
a suggested system using an external power
amplifier.