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Menu Item
Description
[Automatic Level Control]
Corrects automatically the audio level difference between
the music files or the sources.
[Off]
Turns the auto level control setting off.
[Mode1]
Corrects a little the audio level difference between the
music files or the sources (for the narrow dynamic range
audio signal).
[Mode2]
Corrects widely the audio level difference between the
music files or the sources (for the wide dynamic range
audio signal).
[Sound Retriever]
Enhances compressed audio and restores rich sound
[Off] [Mode1] [Mode2]
automatically.
TIP
[Mode2] has a stronger effect than [Mode1].
*1 [All] is not available when [Network Mode] is selected as the speaker mode.
*2 If you change the listening position setting, the output levels of all the speakers will change in
conjunction with the setting.
*3 To use this function, the vehicle's acoustics must be measured in advance.
*4 This function is not available when adjusting the High speaker.
*5 This function is available only when the listening position setting is set to [Front Left] or [Front
Right].
Adjusting the equaliser curve automatically (Auto EQ)
By measuring the vehicle's acoustics, the equaliser curve can be adjusted automatically
to suit the vehicle interior.
WARNING
A loud tone (noise) may be emitted from the speakers when measuring the vehicle's acoustics. Never
perform Auto EQ measurement while driving.
CAUTION
• Thoroughly check the conditions before performing Auto EQ as the speakers may be damaged if this
is performed under the following conditions:
– When the speakers are incorrectly connected. (For example, when a rear speaker is connected as a
subwoofer output.)
– When a speaker is connected to a power amp delivering output higher than the speaker's
maximum input power capability.
• If a microphone for acoustical measurement (sold separately) is not placed in the appropriate
location, the measurement tone may become loud and measurement may take a long time, resulting
in battery drainage. Be sure to place the microphone in the specified location.
46
En
▶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 44).
• 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.
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