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▶Before operating the Auto EQ function
• Perform Auto EQ in a quiet place with the vehicle engine and air conditioning
switched off. Also, cut the power of car phones or mobile phones in the vehicle, or
remove them in advance. Surrounding sounds may prevent correct measurement of
the vehicle's acoustics.
• Be sure to use the microphone for acoustical measurement (sold separately). Using
other microphones may prevent measurement, or result in incorrect measurement of
the vehicle's acoustics.
• To perform Auto EQ, the front speakers must be connected.
• When this product is connected to a power amp with input level control, Auto EQ may
be impossible if the power amp's input level is set below the standard level.
• When this product is connected to a power amp with an LPF (low pass filter), turn the
LPF off before performing Auto EQ. Also, set the cutoff frequency for the built-in LPF of
an active subwoofer to the highest frequency.
• The distance has been calculated by a computer to provide optimum delay to ensure
accurate results. Do not change this value.
– The reflected sound within the vehicle is strong and delay occurs.
– The LPF on active subwoofers or external amps delay the lower sounds.
• If an error occurs during measurement, check the following before measuring the
vehicle's acoustics.
– Front speakers (left/right)
– Rear speakers (left/right)
– Noise
– Microphone for acoustical measurement (sold separately)
– Low battery
▶Performing Auto EQ
CAUTION
Do not turn off the engine while the measurement is in progress.
NOTES
• Auto EQ changes the audio settings as follows:
– The fader/balance settings return to the centre position (page 40).
• Previous settings for Auto EQ will be overwritten.
1
Stop the vehicle in a quiet place, close all doors, windows, and sun roof, and then
turn the engine off.
If the engine is left running, engine noise may prevent correct Auto EQ.
NOTE
If driving restrictions are detected during measurement, the measurement is cancelled.
2
Fix the microphone for acoustical measurement (sold separately) in the centre of
the headrest of the driver's seat, facing forwards.
The Auto EQ may differ depending on where you place the microphone. If desired,
place the microphone on the front passenger seat and perform Auto EQ.
42
En
3
Disconnect the iPhone or smartphone device.
4
Turn on the ignition switch (ACC ON).
If the vehicle's air conditioner or heater is turned on, turn it off.
5
Switch the AV source to [Source OFF] (page 15).
6
Press
.
7
Touch
then
.
8
Touch [A-EQ&TA Measurement].
9
Connect the microphone for acoustical measurement (sold separately) with this
product.
Plug the microphone into the AUX input jack on the back panel of this product.
NOTE
Use an extension cable (sold separately) if the cord of the microphone (sold separately) is not long
enough.
10
Touch [Front Left] or [Front Right] to select the current listening position.
11
Touch [Start].
A 10-second countdown starts.
NOTE
The Bluetooth connection is disconnected before the process starts.
12
Exit the vehicle and keep the doors closed until the countdown finishes.
When the countdown finishes, a measurement tone (noise) is emitted from the
speakers and Auto EQ measurement begins.
13
Wait until the measurement is completed.
When Auto EQ is completed, a message is displayed.
NOTE
The measurement time varies depending on the type of vehicle.
TIP
To stop the measurement, touch [Stop].
14
Store the microphone carefully in the glove box or another safe place.
If the microphone is subjected to direct sunlight for an extended period, high
temperatures may cause distortion, colour change, or malfunction.
Adjusting the cutoff frequency value
You can adjust the cutoff frequency value of each speaker.
The following speakers can be adjusted:
[Standard Mode]: Front, Rear, Subwoofer.
[Network Mode]: High, Mid, Subwoofer.
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