SEIKAKU TECHNICAL GROUP
LIMITED
MAR.15.2011
A3 A4 A5
TOPP PRO
NF03555
-RS-
MX.12FX TOPP PRO_V1.0
MX.12FX
0.032KG
NH00149 1:1
NPD-TO-201012003
4PCS
8
PHFAA102-20110300021
USER' S MANUAL
MX.12FX
+410+410+410+4
10
75Hz 75Hz 75Hz 75Hz
+48V+
DSP
MX.12FX
15 15 15 15
15 15 15 15
15 15 15 15
PHANTOM
48V
10
88
NF03555-1.0
MX .12FX
SAFETY RELATED SYMBOLS
MX .12FX
GUARANTEE
MX .12FX
TABLE OF CONTENTS
1. INTRODUCTION...................................................................................1
2. FEATURES...........................................................................................1
4. CONTROL ELEMENTS............................................................................3
6. WIRE CONNECTIONS...... .....................................................................7
3. USEFUL DATA.......................................................................................1
5. INSTALLATION TIPS .............................................................................6
MX .12FX
7. BLOCK DIAGRAM ................................................................................8
8. PRESET LIST........................................................................................9
9. TECHNICAL SPECIFICATION ...............................................................10
9
TECHNICAL SPECIFICATION
10. GUARANTEE ...................................................................................12
18W
Main Left and Right (4-segment)
Clip (+20), +6, 0, -20
(0 LED=0 dBu)
Presets
100
Display
Two 7-egment display and
Mute/Peak LED Indicator
Type of effects
Controls
100-Position PRESET
Selector andMute Switch
VOCAL,SMALL ROOM,LARGE
HALL,ECHO,ECHO+VERB,
FLANGE+VERB,PLATE,
CHORUS+GTR,ROTARY+GTR,
TREMOLO+GTR
Internal Digital Effect
PEAK Indicator
Channel1-12
+17dBu
VU Meters
+20dBu
Digital Effect(AUX send)
+11dBu
VU Meters
Impedance
Line Input
10k Ohms
Microphone Input
2.6k Ohms
Main Outputs
120 Ohms
CD/Tape Input
22k Ohms
Tape Output
1K Ohms
Ctrl Room,Aux Sends
120 Ohms
Phones Outputs
25 Ohms
Mic Pin2/Pin3 And Pin1(XLR-3-31 type balanced
1=GND,2=HOT,3=COLD)
+48V
Phantom power
Power supply
Adaptor
AC18V,1000mA
Power Consumption
Physical
Dimension (L*W*H)
271*259*54.3mm
Weightt
Net:1.9kg
INTRODUCTION
FEATURES
USEFUL DATA
Please write your serial number here for future reference.
Serial Number:
Data of Purchase:
Purchased at:
Thank you forpurchasing the MX.12FX mixing console. There is 3-band EQ on monochannels. These
mixers are reallyideal for small club gigs.
Please read thism anualcarefully so you can take advantages of allthe features of the MX12FX.
Thank you againfor making the right choice inpurchasing the TOPP PRO MUSICGEAR.
MX .12FX
4 mono inputs with gold plated XLR and Balanced TRS jack
4 inputs with Balanced TRS jack
GAIN control and +48V phantom power for mono inputs
AUX send for effect sends
Peak LED in each channel
2-Track IN/OUT with discrete switches for routing to Control Room and to Main Mix
24-bit internal DSP with 100 effects
stereo
3-band EQ (plus 75Hz low cut filter) on all mono channels
1 POST-fader
TECHNICAL SPECIFICATION
MX .12FX
9
Mic Input to any Output
(Gain @ 0 dB, Rated output level)
Frequency Response
20 Hz to 50 kHz(0, -1dB)
20 Hz to 130 kHz(0, -3dB)
Distortion(THD&N)
Mic Input to MAIN Output(Gain@0dB,
Rated output level @ 20 Hz-20 kHz bandwidth)
0.003%(A-weighted)
MIC EIN
(Equivalent Input Noise)
Input: Channel INPUT MIC(Rs = 150 ,
Gain @ Max.,20 Hz-20 kHz bandwidth)
119dBu(A-weighted)
CMRR(Common Mode
Rejection Ratio)
Mic in to Insert Send out
(Gain @ Max.,@ 1 kHz)
60dB
Mono Channel
Input Gain Conrol Range
(20 Hz-20 kHz bandwidth)
Attenuation (Crosstalk)
(20 Hz-20 kHz bandwidth)
Rated Output Level
Main, Aux, Control Room output
(all knob/fader @ 0 dBu,1 kHz)
0dBu
Maximum Output Level
Main, Aux, Control Room output(all knob/fader
@ 0 dBu,1 kHz, 22 Hz 22 kHz Filter,THD @ 1%)
+20dBu
MIC:0 to 48dB, LINE:-33 to +15dB
Stereo Channel
LINE:-8 to +6dB
Line in, 1/4" TRS Main Out,1 kHz relative to 0 dBu, 22 Hz 22 kHz Filter,
Gain @ unity.
Main Mix knob/fader @ Channel Level knob/fader @ -
-87dBu(A-weighted)
-85dBu(A-weighted)
Maximum Voltage Gain
(EQ and PAN/BAL knob
@ 0 dB, Other all knob or
fader @ max,DFX mute,
1 kHz, Rs=600 )
Mono Channel MIC INPUT
MAIN OUT(1/4" TRS Unbalanced)
74dBu
Mono Channel MIC INPUT
PHONES(1/4" TRS Stereo)
84dBu
Mono Channel MIC INPUT
AUX SEND(1/4" TRS Unbalanced)
79dBu
Mono Channel MIC INPUT
TAPE OUT(RCA)
74dBu
Mono Channel LINE INPUT
MAIN OUT(1/4" TRS Unbalanced)
59dBu
Stereo Channel LINE INPUT
MAIN OUT(1/4" TRS Unbalanced)
33dBu
TAPE INPUT
MAIN OUT(1/4" TRS Unbalanced)
10dBu
MAIN OUT(all knob/fader @ 0 dBu, 22 Hz 22 kHz Filter,Gain @ unity)
Main Mix knob/fader @ - ,
Channel Level knob/fader @ -
-106dBu(A-weighted)
Main Mix knob/fader @ 0dB,
Channel Level knob/fader @ -
-95dBu(A-weighted)
Main Mix knob/fader @ 0dB,
Channel Level knob/fader @ 0dB
-93dBu(A-weighted)
Main mix Noise
(20 Hz-20 kHz bandwidth)
Input HPF
Channel1-4
75Hz, 18 dB/oct
Equalization
(Mono channels)
Mid
12 dB @2.5 kHz
Low
High
15 dB@12 kHz
15 dB@80 Hz
MX .12FXMX .12FX
PRESET LIST
Preset
Parameter
Simulate a small
space with slight
Simulate a bright
studio room
Simulate a large
acoustic space
Echo & Reverb
combination
Flanger effect &
Reverb combination
Simulate classic
bright vocal plate
Echo/Delay effect
Guitar Effect: Chorus
Guitar Effect: Rotary
Guitar Effect: Tremolo
Rev.delay time: 0.8~0.9s
Pre-delay: 10~45ms
Decay time: 0.7~2.1s
Decay time: 3.6~5.4s
Delay time: 208~650ms
Decay time: 1.5~2.9ms
Pre-delay: 20~45ms
Pre-delay: 23~55ms
Decay time: 1.7~2.7s
Rate: 0.8Hz~2.52Hz
Delay time: 145~205ms
Decay time: 0.9s~3.6s
Chorus+GTR
Rate:0.92Hz~1.72Hz
Modulation depth:
20%~80%
Rotary+GTR
Rate :0.6Hz~5Hz
Tremolo+GTR
00~09
10~19
20~29
30~39
40~49
50~59
60~69
70~79
80~89
90~99
Vocal
Small Room
Large Hall
Echo
Echo+Verb
Flanger+Verb
Plate
Description
No.
8
HOOKUP DIAGRAM
Small Club Gig
Computer Set-up
+48V
10
+4+4
1010
+4+4
1010
+4+4
1010
+4+4
1010
75Hz 75Hz 75Hz 75Hz
MX.12FX
PHANTOM
48V48V
Microphones 1 and 2
Mono in/Stereo out Reverb
Active Speakers
Headphones
DAT
DAT Recorder
CD Player
Drum Machine
Keyboard
Note: press the key
TAPE TO CTRL RM/
PHONES to listen to
sound card output
in control room
speakers & headphones. Disengage
this button to listen
to min mix. Do not
engage button TAPE
TO MIX to avoid
feedback.
Guitar
+4+4
1010
+4+4
1010
+4+4
1010
+4+4
1010
75Hz 75Hz 75Hz 75Hz
+48V
MX.12FX
PHANTOM
48V48V
10
Drum Machine
Active Studio Monitors
Direct Box
Digital Audio Interface
Digital Audio
Workstation
Headphones
Microphones 1 and 2
CONTROL ELEMENTS
1- Mono MIC Input
2- LINE INPUTS
3- GAIN CONTROL
EQUALIZATION
The MX.12FX has 3-band EQ on all mono channels . And all bands provide up to 15 dB boost or cut.
The MX series is equipped with one or more low-noise microphone preamplifiers
with optional phantom power providing up to 50dB of amplification. You can
connect almostany type of microphone. Dynamic microphones do not need phantom
power. Use phantom power only with condenser microphones but make sure that
phantom power switch is disengaged before connecting the microphone. Phantom
power will not damage your dynamic microphones but it may damage tube or ribbon
microphones so make sure to read the microphone instructions manual before engaging phantom power switch. There are also equipped with 1/4" TRS balanced and
TS unbalanced LINE IN plug, you can connect with line-level instruments, such as
synthesizers, keyboards, drum machines or effect devices.
: Never try to connect a line-level signal to the XLR MIC input when the phantom
power is engaged, doing this you may seriously damage your equipment.
NOTE
They are organized in stereo pair and provided with 1/4" TRS sockets. It is used
to connect the stereo device, plug both the left input and the right input. Using
the left input if connect a mono input signal to the STEREO INPUT, the signal
will appear on both sides.
This GAIN control is used to control the input sensitivity of the MIC and LINE
inputs. The adjustable range goes from 0 dB to 50dB.
MX .12FX
BLOCK DIAGRAM
MX .12FX
75Hz
1
3
4
+4+4
1010
2
5
4- LOW CUT BUTTON
By pressing this button, you will activate a 75Hz low frequency filter that cuts the bass frequency below
75Hz. You can use this facility to reduce the hum noise infected by the mains power supply or the stage
rumble while using a microphone.
5- +4/-10 SWITCH
+4/-10 switches are used to select the input sensitivity of the line inputs on the stereo channels. +4
dBu is suitable for professional audio devices and -10 dBv is suitable for general devices. If not sure to
use which setting, try +4 dBu first, then change it to -10 dBv if the volume is too small to be satisfied.
6
7
8
15
15
15
6- HIGH
This is the treble control. You can use it to get rid of high frequency of human
voice. The gain range goes from -15 dB to +15 dB with a centre frequency of
12 kHz.
7- MID
This control provides 15 dB boost or cut at 2.5 kHz. It can affect most fundamental
frequencies of all musical instruments and human voice.
8- LOW
This is the bass control. It is used to boost male voice, kick-drum or bass guitar.
Your system will sound much bigger than what it is. The gain range goes from
-15 dB to +15 dB and the center frequency is 80 Hz.
9- AUX Send
This control is used to feed the mono input of parallel effects devices or input of a stage monitor amplifier
via the AUX SEND output jack. All the channel controls (except PAN or BAL) will affect the AUX signal. The
signal is tapped off after the LEVEL control. The output from an external processor can come back via stereo
channel and be added to the main mix.
CONTROL ELEMENTS
MX .12FXMX.12FX
12- LEVEL
This control will adjust the overall level of this channel. If you setthe LEVEL control in max, it's usually a sign
that your GAIN is set too low. If set the LEVEL control in min, your GAIN may be too high.
10- PAN/BAL
Abbreviation of PANORAMA control for mono channels, for stereo channels,
always says, BALANCE control. You can adjust the stereo image of the signal
via this control. For mono MIC/LINE channels, keep PAN control in centre
position and your signal will be positioned in the middle of stage that is to
say the mono signal appears equally in both sides. Turn this control fully
counterclockwise and the signal will be present only on the left speaker and
vice-versa. For stereo channels, by rotating the BAL control, you can attenuate
the signal of left or right. It means if turn the control to left, the right channel
will be attenuated; if turned to right, the left channel will be attenuated.
11- PEAK LED
When this LED blinks, it warns you that you are reaching signal saturation and
possible distortion. From this LED you can adjust the correct level, not too strong
to cause distortion and not too weak to be lost in noise.
9
10
11
12
13- CD/TAPE INPUTS
These RCA jacks will assign the main out signal to a tape recorder or DAT. The
TAPE OUT level is affected by MAIN MIX control.
Use the Tape Input if you wish to listen to your mixerfrom a TaperRecorder or DAT. When the TAPE TO MIX
switch is pushed in, the signal coming from Taper Recorder will assign to main mix; when the CD/TAPE switch
which on the front panel is engaged in the signal can also be assigned to the CONTROL ROOM/PHONES
outputs. If you connect a mono device, you will need a "Y-splitter" RCA adapter.
14- TAPE OUTPUTS
18- CTRL ROOM/PHONES Control
16- TAPE TO CTRL RM/PHONES Switch
Switch is usedto select the signal source forthe CONTROL ROOM outputs,
PHONES, and METERS. Release this switch, they all receivethe main mix
signal tapped afterthe MAIN MIX control. Engage thisswitch, they all receive
the CD/TAPE Inputsignal. Turn down theCTRL ROOM/PHONES control before
engaging.
15- TAPE TO MIX Switch
Connect a CD or Tape Deck to the CD/TAPE inputs, and push down this switch
to add the CD/TAPE signal to the main mix. The volume level is controlled by
MAIN MIX control.
17- FX TO CTRL ROOM Switch
Engage this switchto monitor the aux send signalin the Control Room/
Phones outputs.
This control isused to adjust the signal levelgoing to the CONTROL ROOM/
PHONES outputs. Andit won't affect the Main Mixoutput.
19- MAIN MIX
This control sets the level of main mixsignals sent to the Main Outputs, Tape Outputs, CONTROL PHONES,
and LED Display.
When connecting a speaker to the speaker output jacks, please paymore attention to the level setting for
avoiding damaging the speaker. Generally speaking, the faders will be positioned between 0 dB and the +5 dB.
Note:
ROOM,
WIRE CONNECTIONS
Either the 1/4" TRS phone jack or XLR connector can be wired in balanced and unbalanced modes,
which will be determined by the actual application status, please wire your system as the following
wiring examples:
XLR Type Unbalanced
Pin3 (-)
Pin2 (+)
Pin1 ( )
(Linked to Pin1 manually, )
XLR Type alancedB
Pin1 ( )
Pin2 (+)
Pin3 (-)
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Ring
Sleeve
1
2
3
1
2
3
1
2
3
TIPRING SLEEVE
SLEEVERING TIP
TIPRING SLEEVE
2
1
3
1
2
3
1
2
3
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Sleeve
Tip
Sleeve
Tip
Sleeve
Cent er
Cent er
Centre
Screen
Screen
Screen
1
2
3
Tip
Ring
Sleeve
1
2
3
1
2
3
Tip
Ring
Sleeve
1
2
3
Tip
Sleeve
1
2
3
TIPSLEEVE
TIPSLEEVE
TIPRING SLEEVE
TIPRING SLEEVE
1
2
3
2
1
3
2
1
3
TIPRING SLEEVE
TIPSLEEVE
1
2
3
1
2
3
SLEEVETIP
SLEEVERING TIP
For these applications the unit provides 1/4" TRS and XLR connectors to easily interface with most
professional audio devices. Follow the configuration examples below for your particular connection.
Unbalanced
In-line Connection
Balanced
TRS Type Balanced
Tip
Ring
Sleeve
+
-
TRS Type Unbalanced
Tip
Ring
Sleeve
+
TS Type Unbalanced
Sleeve
Tip
+
For 1/4" Phone jack
For XLR Connector
19
13
14
15
16
17
18
CONTROL ELEMENTS
MX .12FX MX .12FX
20- POWER LED
21- PHANTOM 48V LED
This LED lights up when the power switch is turned on.
This LED will light up when the phantom power is switched on.
: Turn down all output levels before operating this switch to avoid the
possibility of "pop" in your speakers. Do not use phantom power with tube or
ribbon microphones, as this may cause damage.
NOTE
22- METERS
This stereo LED meter will indicate the level of the overall output signal.
+48V
10
20
21
22
23
23- TO MAIN MIX CONTROL
This control is used to adjust the volume of effect signal sent to MAIN MIX bus, which can be varied from
-
to +10 dB.
24
25
26
PHANTOM
48V
27
28
25- CTRL ROOM OUT
26- AUX SENDOUT
These 1/4" TRS are used to assign the control room signal to the studio monitor
speakers. They can also be used to provide another main mix output, or to
monitor the CD/TAPE Inputs (when engage the TAPE TO CTRL RM/PHONES
switch), or to monitor aux send signal (FX TO CTRL ROOM switch is engaged)
24- MAIN OUT
These 1/4" TRSjacks represent the end of themixer chain, where your fully
mixed stereo signal enters the real world. Connect theseoutputs to the
inputs of your amplifiers, powered speakers, or serial effects processor
(graphic equalizer, for example).
27- PHONES OUTPUT
These 1/4" TRS are used to send out the signal from the AUX bus to external
device such as effects equipment. Each channel has an AUX SEND control
knob that adjusts how much of that channel's signal appear at each of the
output. This output is affected by the channel LEVEL, but not MAIN MIX control.
This jack is used to send out the mix signal to a pair of headphones, and the signal is the same as the CTRL
RM OUTS outputs. The level is controlled by the CTRL ROOM/PHONES knob. You can listen to the Main Mix,
the CD/TAPE, or the AUX SEND depending upon the position of the TAPE TO CTRL RM/PHONES switch and
FX TO CTRL ROOM switch.
28- +48V PHANTOM SWITCH
This +48VDC phantom power switch only apply to the XLR microphone input. Never connect microphones
when the phantom power is on already.
DSP SECTION
There is a powerful 24-bit/100 presets digital multi-effects built in your MX.12FX mixer, the effects include
ECHO, FLANGER+VERB, PLATE and combinations of the above.
29- DISPLAY
It displays the selected preset.
30- PRESET SELECTOR
Adjust this knob to select the right effect you wish to perform. There are totally 100 options for you: ECHO,
VOCAL, PLATE andversatile two-effect combination. When you are satisfied with the right preset, push this
knob to store this preset you want.
Enjoy the sound!
INSTALLATION TIPS
1- Speakers should beplaced in a positionthat allows for unobstructe soundprojection. In many
instances is beneficial for speakers to be elevated on tripod stands to achieve maximum
dispersion and reach.
2- Use professional advice or service when hanging and installing speakers. Please take
precautions to secure them to prevent them from falling and hurting someone. Care should be taken
as to not damage the cabinet or its components. Please comply with all pertinent Regulations.
3- Use quality cables. Using quality cables will ensure the best possible sound.
4- For best results match the speakers to a good amplifier that matches the wattage and impedance
of your speakers. Proper amplification power results in good quality audio and longer component
life. Check out the power requirement for your cabinet.
5- Avoid pointinga microphone directly at an amplified speaker doing so,could cause feedback
possibly damaging speaker components and your hearing.
CONTROL ELEMENTS
31- PEAK/MUTE LED
This LED lights up when the input signal is too strong or in
case of the digital effect module being muted.
32- MUTE SWITCH
This switch is used to activate/deactivate the effect facility.
DSP
88
2930
31
32
REAR PANEL
33- POWER IN
This connection is where you connect the supplied external AC power supply to provide AC power to the mixer.
Connect the external power supply to your mixer first, then plug the power supply into a suitable and properly
rated AC outlet.
NOTE: make sure you use the correct external power supply cable of providing 18V at milliamps.
33
MX.12FX
OFF ON
18VAC1000mA
POWERIN
34
34- POWER SWITCH
Turn on & off the mixer. Turn on the mixer a fter all input have been connected and before you turn on the amplifier.
Turn off the amplifier before you turn off the mixer.
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