Sony MEX-BT3900U User Manual

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To not customize a preset equalizer curve,
skip to step 5.
4 Rotate the control dial to select the
equalizer curve, then press it.
5 Setting the equalizer curve.
1 Rotate the control dial to select the
frequency range, then press it.
BAND1: 63 Hz
BAND2: 160 Hz
BAND3: 400 Hz
BAND4: 1 kHz
BAND5: 2.5 kHz
BAND6: 6.3 kHz
BAND7: 16.0 kHz
2 Rotate the control dial to adjust the
volume level, then press it.
The volume level is adjustable in 1 dB
steps, from -6 dB to +6 dB.
Repeat steps 1 and 2 to adjust other
frequency ranges.
6 Press (BACK) twice.
The equalizer curve is stored in “CUSTOM,”
and the display returns to normal reception/
play mode.
Optimizing sound by Time
Alignment — Listening Position
The unit can change the localization of sound by
delaying the sound output from each speaker to
suit your position, and simulate a natural sound
field with the feeling of being in the center of it
wherever you sit in the car.
The options for “POSITION” are indicated
below.
You can also set the approximate subwoofer
position from your listening position if:
– the audio output is set to “SUB-OUT.”
– the listening position is set besides “OFF.”
The options for “SET SW POS” are indicated
below.
“NEAR” (A): Near
“NORMAL” (B): Normal
“FAR” (C): Far
1 During reception/playback, press the
select button.
2 Rotate the control dial until “SET
POSITION” appears, then press it.
3 Rotate the control dial to select from
“FRONT L,” “FRONT R,” “FRONT” or
“ALL,” then press it.
4 Rotate the control dial until “SET SW
POS” appears, then press it.
If you select “FRONT L,” “FRONT R,”
“FRONT” or “ALL” in step 3 above, you can
set the subwoofer position.
Rotate the control dial to select from
“NEAR,” “NORMAL” or “FAR,” then press
it.
5 Press (BACK).
The display returns to normal reception/play
mode.
To cancel listening position, select “OFF” on
step 3.
Adjusting the listening position
You can fine-tune the listening position setting.
1 During reception/playback, press the
select button.
2 Rotate the control dial until “ADJ
POSITION” appears, then press it.
3 Rotate the control dial to adjust the
listening position, then press it.
Adjustable range: “+ 3” – “CENTER” –
“– 3.”
4 Press (BACK).
The display returns to normal reception/play
mode.
DM+ Advanced
DM+ Advanced improves digitally compressed
sound by restoring high frequencies lost in the
compression process.
1 During playback, press the select
button.
“FRONT L” (1): Front left
“FRONT R” (2): Front
right
“FRONT” (3): Center front
“ALL” (4): In the center of
your car
“OFF”: No position set
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Sony MEX-BT3900U Specifications

General

MP3 playback	Yes
AM band range	530 - 1710 kHz
FM band range	87.5 - 107.9 MHz
Supported radio bands	AM, FM, LW, MW
Preset stations quantity	18
Output power	52 W
Product color	Black
Frequency range	2.400 - 2.4835 Hz
Equalizer bands quantity	7
Display type	LCD
Display number of lines	1 lines
USB version	2.0
Bluetooth profiles	A2DP, AVRCP, HFP, OPP, PBAP
USB ports quantity	1
Number of optical discs	1 discs

Weight and Dimensions

Weight	1200 g
Dimensions (WxDxH)	178 x 179 x 50 mm