Output Adjustments - Sony XM-C6000 Service Manual

Output Adjustments
When you are installing either a 2-way or 2-Way System
3-way system, adjust the balance of the mid- 1 Turn down the volume of the head unit
range sound first, then the high and finally the completely. Then adjust the crossover
low. frequencies to fit the connected speakers'
Make sure that the bass sound is turned down frequency response ranges. See page 17
compietely while adjusting the treble and the about the crossover frequencies.
mid-range sound. {f the bass sound is present, Set the FRONT MID/REAR FULL LEVEL
it will be difficult to balance the overall sound.
and the FRONT TWEETER/FRONT FULL
After these adjustments are completed, turn up
LEVEL controls to the center positions and
the bass and adjust the whole balance.
the SUB WOOFER
LEVEL control to the
MIN position.
Playback some musie and turn up the
volume to a moderate level with the head
unit.
Adjust the FRONT MID/REAR FULL LEVEL
and the FRONT TWEETER/FRONT FULL
LEVEL controls to the optimum level. You
can adjust the fader control of the head unit
to get the same effect.
White checking the congeniality of the audio
relationship between the speakers to be
smooth and natural by playing back some
music with a lot of bass sound, adjust the
SUB WOOFER LEVEL contro! to balance
the sound.
if the congeniality of sound is not smooth,
readjust the LEVEL controls. lt such
measures do not improve the situation, turn
down the volume control of the head unit
completely and rearrange the settings of the
filter selector switches and then readjust the
LEVEL controls.
7 Repeat steps 1 to 6 until the optimum sound
is achieved.
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15
- Output Adjustm ts
3-Way .System
1 Turn down the volume of the head unit
completely. Then adjust the crossover
frequencies to fit the connected speakers'
frequency response ranges. See page 17
about the crossover frequencies.
Set the FRONT MID/REAR FULL LEVEL
and the FRONT TWEETER/FRONT FULL
LEVEL controls to the center and the SUB
WOOFER LEVEL contro! to the MIN
position.
3 Playback some music and turn up the
volume to a moderate level with the head
unit.
Adjust the FRONT MID/REAR FULL LEVEL
and the FRONT TWEETER/FRONT FULL
LEVEL controls to the optimum fevel. if a
S-way system and a pair of full-range
speakers are installed, adjust the balance of
the volume of the front and rear speakers
with the fader control of the head unit.
While checking the congeniality of the audio
relationship between the speakers to be
smooth and natural by playing back some
music with a jot of bass sound, adjust the
SUB WOOFER LEVEL control to balance
the sound.
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wn
16
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tf the congeniality of sound is not smooth,
readjust the LEVEL controts. If such
measures do not improve the situation, turn
down the volume control of the head unit
completely and rearrange the settings of the
fiter selector switches and then readjust the
LEVEL controls.
lf the congeniality of sound between the
speakers is difficult to achieve, change the
settings of both PHASE switches.
Adjust the SUB WOOFER LEVEL and LOW
BOOST controls according to your taste.
Repeat steps 1 to 8 until the optimum
sound is achieved.
Set the crossover frequencies by changing the
setting of each filter selector switch to suit the
frequency response of the connected speakers.
See the diagram below.
Setting of crossover frequencies
.,
2 WAY
SUB WOOFER FRONT REAR
LOW MIDHIGH
LOW-PASS FRONT MI-PASS S070 Hz
SOUTONDONNAO Hz REAR HEPASS SO/70/100/1a0 He
12 dBloc! 1B aBioc!
3 WAY
MID HIGH
MID-RANGE
Congeniality of Audio Relationship —Setting of Fitter Selector Switches
However, in some cases depending on the
different types of car and the tocation of the
speakers, these settings may implove the
overall sound,
if the bass (LOW-PASS) and treble (HIGH-
PASS) filter selector switches are set at the
same crossover frequency points, both audio
compasses will drop by 3 dB when they meet
and the overall frequency response will be fiat.
See diagram (a). if the filter seictor switches
are set to different frequencies, the overall
frequency response characteristics may have
uneven sections. See diagram (b) and (c).
-
(a) (b) {c)
Paak 'Overall hequency
overall frequency response ovetall Kequency response response
Flat chatacterisucs characterauice Dent charactersice
ee ase e LLL Se ee
WOR sree teeter aware
MB - eee eee cane ssateen titer
° characteristics
100 He Hr 100 Hy 24 ehz 35 eee
(LOW PASS. sH-PASS! (LOW-PASS: LOWPASS) = pHLPASS;
HHEPASS:
17
| Low Boost Characteristics
+410
(dB)
FREQUENCY (Hz)
Block Diagram
|
INPUT OUTPUT
FRONT (3 WAYI2 WAY)
Hi-PASS
{¥2dBvoct) HIGHIFRONT
Fox SOOT 5k/S KH? e
3. WAY
Q HI-PASS LOW-PASS
. (12¢Bvoct) (reeBinee) FAPOWER) 6 MIDIREAR
° Fee SO70N00/140 Ha Fos 2 Akg SWSKIFLAT
2 WAY
LOW BOOST
Fo 340 Hz e) SUB WOOFER
Gain = O- «10 Hz fd
LINE OUT