Ojawa XP-1450, XP-1750C, XP-2050C Operation Manual
Eng/Persian
Eng/Persian
Portable Powered Mixer
XP-Series
(1450/1750C/2050C)
Control No:
92
Revision No:
1.0
OPERATION MANUAL
(http://www.ojawa.com)
XP-1450
XP-1750C XP-2050C
XP-1450
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MON
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VOL
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POWER
2+1 OUTS
POWERED MIXER
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MASTER-1
MASTER-2
XP-SERIES 2+1 OUTS POWERED MIXER
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TAPE/MP3
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MONITOR
OUT
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EFFECTS
TAPE/CD
MP3
SELECT
MONITOR
OFF
ON
EFFECT
STEREO
MONO
MODE
LONG
SHORT
DELAY TIME
PLAY
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REC
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-9
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+3
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HEADPHONE
HEADPHONE
OUT
USB
Remote
Receive
SD
MP3 PLAY / RECORD
PLAY DELSTOP NEXT BACKREC
USB/SD
®
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No Disk
Please Add Disk
OFF
ON
PLAY
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MUTE
OFF
ON
MUTE
TAPE
(CD)
MP3
SELECT
REC
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FOOT S/W
MONITOR
OUT
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DELAY TIME
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STEREO
MONO
MODE
TAPE/CD EFFECTS
VOL
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LOW
VOL
PRE
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LOW
MASTER-1 MASTER-2 MASTER-3 MONITOR H/P
XP-SERIES 3+1 OUTS POWERED MIXER
HEADPHONE
Remote
Receive
USB
SD
MP3 PLAY / RECORD
PLAY DELSTOP NEXT BACKREC
USB/SD
VOL
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HEADPHONE
No Disk
Please Add Disk
®
XP-1750C
XP-Series
15
XP-Series
3
All the safety and operation instructions should be read before the
appliance is operated.
Retain Instructions :
The safety and operation instructions should be retained for future
reference.
Heed Warnings :
All warnings on the appliance and in the operating instructions should
be adhered to.
Follow instructions :
All operation and user instructions should be followed.
Water and Moisture :
The appliance should not be used near water (e.g. near a bathtub,
washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool etc.).
For apparatus having no protection against splashing water.
- The instruction for use shall state that the apparatus shall not be
exposed to dripping or splashing and no object filled with liquids, such
as vases, shall be placed on the apparatus.
Heat :
The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances(including amplifiers)
that produce heat.
Power Source :
The appliance should be connected to a power supply only of the type
described in the operating instructions or as marked on the appliance.
Power-Cord protection :
Power supply cord should routed so that they are not likely to be
walked on or pinched by items placed upon or against them, paying
particular attention to cords and plugs, extension cords and the point
where they exit form appliance.
Non-use Periods :
The power cord of the appliance should be unplugged from the outlet
when left unused for extended periods of time.
Cleaning :
The appliances should be cleaned only as recommended by the
manufacturer.
Debris and Liquid Entry :
Care should be taken that debris and/or liquids do not enter the enclosure through openings.
Grounding or Polarization :
This device must be grounded.
Precautions should be taken so that the grounding or polarization
means of a appliance is not defeated.
Damage Requiring Service :
The appliance should be serviced by qualified
service personnel when
- The power supply cord or the plug has been damaged; or
- Debris or liquid has entered the appliance; or
- The appliance has been exposed to rain; or
- The appliance does not appear to operate normally or exhibits a
noticable change in performance; or
- The appliance has been dropped, or the enclosure damaged.
Servicing :
The user should not attempt to service the appliance beyond that which
is described in the operating instructions. All other servicing should be
referred to qualified service personnel.
This symbos is intended to alert the user to
the presence of uninsulated “dangerous voltage” within the product’s enclosure that may
be of sufficient magnitude to conslitute a risk
of electric shock to persons.
CAUTION:
To reduce the risk of electric
shock, do not remove the top cover
(or the rear section). No user serviceable parts inside, refer servicing
to qualified service personnel.
This triangle on your component alert you to
important operation and maintenance instrucitons in this accompanying liferature.
WARNING:
To prevent fire or shock hazard do
not expose this appliance to rain
and moisture.
▒ IMPORTANT SAFTY INSTRUCTION ▒
XP-Series 3
XP-Series
4
HI-Z
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GAIN
VOL
LINE
MIC
EFF
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MON
MID
HIGH
1
LOW
(Control Section)
1
2
3
4
1. EQUALIZER CONTROLS ( HIGH, MID, LOW )
This is a 3-band equalizer that adjust the high frequency range, mid frequency
range, and low frequency range of each channel. Response is flat when the knobs
are in the center position. Rotating knob toward the right will boost the corresponding frequency band, and rotating knob toward the left will cut it. The followings are the base; range of boost or cut, and equalizer type of each band.
※Channel Frequency Character
※Master Frequency Response
2. MONITOR CONTROLS (MON)
This knob sends each channel’s signal out to an external amplifier, which powers your monitor speakers, via the MONITOR LINE OUT jack. Each channel’s
monitor send signal is controlled by the channel ’ s MON knob.
The monitor signal is for pre-VOLUME, so that adjust only the main mix. Each
MON control from off through triangle (the center detent position) on up to +15dB
of extra gain.
3. EFFECT CONTROLS ( EFF )
Each channel’s effects signal is controlled by the channel’s EFF knob, and the
overall effects level is controlled by the EFF LEVEL knob. The effects signal is for
post-EQ and post-VOLUME, so these control s affect the signal going to the effects processor, be it internal or external. Each EFF controls from off through triangle (the center detent position) on up to +10dB of extra gain. Normally the effects
signal is routed to the internal 32-bit precision digital stereo effects processor.
CONTROL MAX. BOOST/CUT FREQUENCY TYPE
HIGH
±15dB 12kHz Shelving
MID ±15dB 2.5kHz Shelving
LOW ±15dB 80Hz Shelving
▒ MONO (MIC CH.) - 1/3
(그림: Frequency Response)
Fig
XP-Series 4
XP-Series
5
(Control Section)
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MON
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5
4
6
7
4. GAIN CONTROLS ( TRIM )
GAIN adjusts the input sensitivity of the MIC and LINE inputs. Gain may adjust signals from the outside to be adjusted to optional internal operating levels.
Through the XLR jack (MIC), there will be -20dB of gain at the knob fully down,
ramping to -50dB of gain fully up.
* Every time you plug something into a MIC or LINE input jack, you should perform the Level-Setting Procedure, to see “ how to use the TRIM knob.” *
5. VOLUME CONTROLS ( VOL )
The rotary VOLUME knob controls the channel’s level from off to, on up to
+20dB of additional gain when turned all the way up. The VOLUME control is
equivalent to a channel fader.
6. LINE INPUT (LINE)
Line input connects standard 1/4” plug unbalanced line; other than microphone
signals, it receives all other kinds of signals, from sources like keyboard, electronic
drum, tape recorder and etc.
7. MIC INPUT (MIC)
Electronically balanced XLR-type inputs for the connection of low impedance
microphones like the ones featured in major studio and live mixing consoles.
This type of input stage provides extraordinary low noise signal conversion at an
extremely low distortion rate (typical < 0.02%) even in the high frequency range.
Generally, any type of microphone can be connected as long as its pin assignment is in accordance to the diagram shown below.
※See illustration on how to connect
Fig 2 Line Input
Fig 1 Mic Input
Hot
Cold
Shield
1
2
3
Cold
Hot
Shield
Balanced XLR
Connectors
▒ MONO (MIC CH.) - 2/3
Pin1: GND
Pin2: HOT(+)
Pin3: COLD(-)
PHASE (Normal)
Pin1: GND
Pin2: COLD(-)
Pin3: HOT(+)
PHASE (Reverse)
MIC Input Jack(XLR) Pin 연결방법
How to connect mic input jack(XLR)
(Tip: Signal)
(Ring: Gnd)
(1/4”Phone Plug 연결 방법)
How to connect 1/4”phone plug
XP-Series 5
XP-Series
6
PLAY
R
TAPE
(CD)
MP3
SELECT
REC
L
VOL
V
o
l
u
m
e
C
o
n
t
r
o
l
010
TAPE/CD
OFF
ON
MUTE
HI-Z
LO-Z
VOL
LINE
MIC
V
o
l
u
m
e
C
o
n
t
r
o
l
010
(Input Section)
(Input Section)
8. MUTE
The MUTE button mutes the input signal post fader, including all MIC/EFF/MON
sends. Signal/Peak stay functional.
HINT: Use the MUTE button for muting temporarily not used input channels without
changing the settings of the MIC/EFF/MON controls and the channel fader.
※As all other features are the same as the mono channels, please see the
description of the mono channels.
※ Unbalanced 1/4” TS Plug Connection
9. MP3 / TAPE(CD) VOLUME
This is a switch that adjust the playback volume.
(※Caution: Please reduce this volume to a minimum to prevent noise and trouble
when recording in MP3.)
10. MP3 / TAPE(CD) SELECT SWITCH
This is a switch that select a device to use. Each time the switch is pressed,
Tape(CD) and MP3 are selected alternately.
11. TAPE / CD IN and TAPE / CD OUT
These are unbalanced RCA-type connectors that match those typically used on
tape decks and CD players. Use RCA-to-RCA patch cables to make these connections.
Caution : When using the TAPE OUT connectors for recording, don’t connect
the output of the tape deck to the TAPE IN connectors. If you do, MAKE SURE the
TAPE IN LEVEL control is turned all the way down or you will create a feedback
loop that will cause great distress to you and everyone around you.
Signal
Ground
UnBalanced 1/4" TS Plug
Tip
Tip
Sleeve
Sleeve
8
10
9
11
▒ MONO (MIC CH.) - 3/3 ▒ TAPE/CD CH.
XP-Series 6
XP-Series
7
D
a
m
p
i
n
g
C
o
n
t
r
o
l
0
10
D
e
c
a
y
T
i
m
e
010
TIME
DAMP
LEV
R
e
v
e
r
b
L
e
v
e
l
010
R
E
V
E
R
B
D
E
L
A
Y
D
e
l
a
y
T
i
m
e
010
TIME
R
e
p
e
a
t
C
o
n
t
r
o
l
010
RPT
LEV
D
e
l
a
y
L
e
v
e
l
010
MON
M
o
n
i
t
o
r
L
e
v
e
l
010
EFFECTS
OFF
ON
EFFECT
STEREO
MONO
MODE
LONG
SHORT
DELAY TIME
(Effects Control Section)
(XP-1750C/2050C) (XP-1450)
1. REVERB DAMPING CONTROL
REVERB DAMPING CONTROL adjust the depth of the sound
effect.
2. REVERB TIME CONTROL
REVERB TIME CONTROL adjust the time of the sound effect.
3. REVERB LEVEL CONTROL
REVERB LEVEL CONTROL adjust the volume of the sound
effect. Raising too much volume for this effect, howling occurs
due to the Feedback.
4. DELAY TIME CONTROL
DELAY(ECHO) TIME CONTROL adjust the length of the sound
effect. This is used to use very long or short.
5. DELAY TIME CONTROL
DELAY(ECHO) TIME CONTROL adjust the length of the sound
effect minutely.
6. DELAY REPEAT CONTROL
DELAY(ECHO) REAPEAT CONTROL adjust the number of
iteration.
7. DELAY LEVEL CONTROL
DELAY(ECHO) LEVEL CONTROL adjust the volume of the
sound effect. Raising too much volume for this effect, howling
occurs due to the Feed back.
8. MONITOR LEVEL CONTROL
Reverb & Delay(Echo) is sent to monitor channel by this control. And you can adjust the volume of Reverb & Delay(Echo)
by using this control.
9. EFFECTS ON/OFF SWITCH
Using this switch, you can stop or activate the sound
effects(DELAY/REVERB).
10. MODE (ST/MONO) SELECTOR
This is a switch button you can choose mono or stereo.
11. EXT EFFECTS ON/OFF SWITCH JACK
Through this jack you can connect external switch that you
can play or stop the sound effect of this channel. Howling may
be occurred by using the Foot S/W.
FOOT S/W
D
a
m
p
i
n
g
C
o
n
t
r
o
l
0
10
D
e
c
a
y
T
i
m
e
010
TIME
D
e
l
a
y
T
i
m
e
010
TIME
R
e
p
e
a
t
C
o
n
t
r
o
l
010
RPT
M
o
n
i
t
o
r
L
e
v
e
l
010
MON
DAMP
EFFECTS
LEV
R
e
v
e
r
b
L
e
v
e
l
010
LONGSHORT
DELAY TIME
LEV
D
e
l
a
y
L
e
v
e
l
010
R
E
V
E
R
B
D
E
L
A
Y
STEREO
MONO
MODE
EFFECTS
▒ EFFECTS CH.
1
2
3
4
5
6
7
8
9
11
10
XP-Series 7
XP-Series
8
VOL
V
o
l
u
m
e
C
o
n
t
r
o
l
010
H
I
1
2
K
H
z
d
B
+
-
d
B
15 15
HIGH
M
I
D
2
.
5
K
H
z
d
B
+
-
d
B
15 15
MID
L
O
W
8
0
H
z
d
B
+
-
d
B
15 15
LOW
MASTER-1
XP-SERIES ~
※Master Tone Frequency Response
7. HEADPHONE VOLUME
This control adjust the volume of the headphones connected.
8. MONITOR OUTPUT
Jack for the connection of the external monitor amplifier that monitor the output
signal.
9. HEADPHONE JACK
Jack for the connection of the headphone that monitor the output signal.
MASTER-1
XP-SERIES 2+1 OUTS POWERED MIXER
M
I
D
2
.
5
K
H
z
15 15
MID
H
I
1
2
K
H
z
d
B
+
-
d
B
d
B
+
-
d
B
15 15
HIGH
+3
L
O
W
8
0
H
z
d
B
+
-
d
B
15 15
LOW
VOL
V
o
l
u
m
e
C
o
n
t
r
o
l
010
0dB
-4
-9
-15
-21
MONITOR
OUT
VOL
PRE
V
o
l
u
m
e
C
o
n
t
r
o
l
010
~ERED MIXER
HEADPHONE
HEADPHONE
(XP-1750C/2050C) (XP-1450)
7
8
9
1
3
4
5
6
2
(Master Section)
(Master Monitor
Section)
1. OUTPUT VU-METER
Indicator for the displaying of operating status and the output volume.
You can monitor the operating status and the output volume using this
VU-METER.
2. MASTER LEVEL INDICATOR
This LED-chain indicates the level of output signal.
3. MASTER HIGH CONTROL
Level control to adjust the high frequency range of the XP1750C/2050C finally.
4. MASTER MIDDLE CONTROL
Level control to adjust the mid frequency range of the XP-1750C/2050C
finally.
5. MASTER LOW CONTROL
Level control to adjust the low frequency range of the XP-1750C/2050C
finally.
6. MASTER LEVEL CONTROL
Level control to adjust the volume of the XP-1750C/2050C finally.
The volume and operating status is displayed by MASTER-1’s VUMETER.
▒ MASTER CH.
(그림: Frequency Response)
Fig
XP-Series 8
XP-Series
9
USB
Remote
Receive
SD
MP3 PLAY / RECORD
PLAY DELSTOP NEXT BACKREC
USB/SD
No Disk
Please Add Disk
987654321 10
▒ MP3 PLAY & RECORDING (USB/SD)
(MP3 Section)
1. USB INSTERT SLOT
Slot for the connection of the USB memory
card.
2. SD CARD INSERT SLOT
Slot for the connection of the SD card.
3. REMOTE CONTROL RECEIVER
Part of the IR signal is received when you operating the remote control. (If there is obstacle
between the remote control and the receiver,
the remote control may not work.)
* On the remote control, see the following description. When you turn on the MP3 Player first, its volume is set 12
of 15 and you can adjust the volume.
4. FUNCTION INDICATOR
Watching this indicator, you can check the information of the working MP3 Player.
(※Caution: Please reduce the MP3/TAPE volume to a minimum to prevent noise and trouble when recording.)
5. PLAY & PAUSE BUTTON
Using this button, you can play or stop the MP3 File.
6. RECORD BUTTON
Recording is started when this button is pressed in the stop mode and the recording information is indicated
through the FUNCTION INDICATOR(4). At this time, the recording file is created since “00:01” which is indicated
in the FUNCTION INDICATOR(4) and the file name is FILE’XXX’. (FILE > RECORD > LINEIN > FILE’XXX’).
If you want to stop the recording you should press the stop button.
7. STOP BUTTON
If you press this button, the current function is stopped and the MP3 Player becomes initial state.
8. NEXT BUTTON
When you press this button, the next file is selected.
9. BACK BUTTON
When you press this button, the previous file is selected.
10. DELETE BUTTON
When the file is playing, if you press this button the file is selected and press this button one more, you can delete the file being played.
11. MEMORY SELECTION BUTTON
Pressing this button, you can choose to use any device of USB and SD card.
XP-Series 9
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