Sony STR-DH740 Benutzerhandbuch

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• Get accurate measurement by making 
sure the environment is free from noise 
and quiet.
• The speakers emit very loud sound during the 
calibration and the volume cannot be adjusted. 
Provide consideration to your neighborhood and 
to the children in presence.
• If the muting function has been activated before 
you perform Auto Calibration, the muting 
function will shut off automatically.
• The correct measurements may not be able to 
take or Auto Calibration cannot be performed 
when special speakers, such as dipole speakers 
are used.
To set up the Auto 
Calibration
1
Connect the supplied optimizer 
microphone to the AUTO CAL MIC 
jack.
2
Set up the optimizer microphone.
Place the optimizer microphone at your 
seating position and set it at the same 
height as your ears.
Confirm active subwoofer 
setup
• When a subwoofer is connected, turn on 
the subwoofer and turn up the volume 
prior to activating the subwoofer. Turn 
the LEVEL to just before the mid-point.
• If you connect a subwoofer with a 
crossover frequency function, set the 
value to maximum.
• If you connect a subwoofer with an auto 
standby function, set it to off 
(deactivated).
Depending on the characteristics of the 
subwoofer you are using, the setup distance value 
may be different from the actual position.
When you connect two 
subwoofers to the receiver
If you cannot obtain measurement results 
of the “Auto Calibration” function 
correctly, depending on the environment, 
or you want to make fine adjustments, you 
can set up the subwoofers manually. For 
details, see “Manual Setup” in the Speaker 
Settings menu (page 61).
Notes on the speaker 
impedance
• If you are not sure of the impedances of 
the speakers, refer to the operating 
instructions supplied with your speakers. 
(This information is often on the back of 
the speaker.)
• When you connect front speakers to both 
the FRONT A and SURROUND BACK/
BI-AMP/FRONT HIGH/FRONT B 
terminals, connect the speakers with a 
nominal impedance of 6 ohms or higher.
To set the surround back 
speakers
You can switch the usage of the speaker(s) 
connected to the SURROUND BACK/
BI-AMP/ FRONT HIGH/FRONT B 
terminals in accordance with the intended 
use. For details, see “SB Assign (Surround 
back speaker assign)” (page 60).
Notes
Optimizer microphone
Note