Modify EZ-802FX Guide

Mini Audio Mixer
OPERATING MANUAL AND USER GUIDEOPERATING MANUAL AND USER GUIDE

IMPORTANT WARNINGS & SAFETY INSTRUCTIONSIMPORTANT WARNINGS & SAFETY INSTRUCTIONS
The mixers are covered by a limited warranty, against any defects in workmanship for
a period of one year from the date of purchase. This warranty is non-transferable and
applies only to the original purchaser. If any warranty related issues occur, contact your
1. Power Supply
This mini-mixer is supplied with an external power supply unit. Use only the power
supply provided with your mixer. Use of any other power supply could cause damage to
the mixer and other equipment. Connect the power supply to the mixer BEFORE connecting
it to the power source outlet. Be sure to allow for free airflow around the mixer, as it
may become warm during long periods of operation. The mixer is shipped with the
correct power supply for the county in which it is to be used. This can be verified by
checking the label on the power supply.
2. Packing
The exterior and interior packaging has been designed protect the mixer during transit.
If any shipping damage has occurred, consult your dealer and the shipping provider.
3. Safety
Avoid exposing your mixer to excessive heat, humidity and dust. Store and operate
the mixer away from locations where it is likely to be exposed to these conditions.
Also, avoid placing your mixer in locations which may be subject to excessive
vibration/physical shocks that could cause mechanical damage to the mixer.
For the protection of the mixer and other audio equipment, always turn off the power
on the mixer and other system components before connecting or disconnecting audio
cables. Be aware that excessive volume levels are possible from the output of this
WARNING:
QUALIFIED SERVICE PERSONNEL!
THIS PRODUCT CONTAINS NO USER-SERVICEABLE PARTS!
REFER ALL MAINTENANCE, REPAIRS AND MODIFICATIONS TO
mixer Protect your hearing accordingly.
4. WARRANTY
dealer. Proof of purchase may be required.
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OPERATING MANUAL AND USER GUIDEOPERATING MANUAL AND USER GUIDE
TABLE OF CONTENTSTABLE OF CONTENTS
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5-10
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11-12
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IMPORTANT WARNINGS & SAFETY INSTRUCTIONS
WHAT ABOUT THE MINI MIXER?
FEATURES
MIXER FRONT PANEL
DETAIL FEATURES
Mono Channels
Stereo Channels
Master Section
MP3 Player (Digital Audio Player) Section
SETTING UP
BLOCK DIAGRAM
SPECIFICATIONS
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MINI MIXER 6/8/10/12 CHANNEL
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The Mini Mixer is a high quality mixer designed to provide the best sound and
features in a compact package. It is designed to provide transparent and accurate mixing
capability in an easy to use package.
The mixer consists of 2/4/6/8 x microphone/line inputs. Each mono channel features
Iow,mid and high EQ, balanced input, and a Digital Effect processor with 16 effects
to allow you to "tune" your sound.
The 2 stereo channels with high and low EQ allow you to mix your external devices into the
show with ease.
Easy to transport and quick to set up, the Mini Mixer is the ideal choice for the serious
professional.
The mixer consists of 2/4/6/8 microphone/line inputs and 2 Stereo Channels.
WHAT ABOUT THE MINI MIXER?WHAT ABOUT THE MINI MIXER?
The Mini Mixer is a full featured multi-channel mixer designed to delive the highest quality
sound for the best value.
The mini mixer is the solution when you are looking for a high quality, Iow-cost compact
audio mixer for personal studio and live applications. This was built to
suit a variety of applications, from desktop recording and AV production, to samller live
performances. Mini mixer offer no-nonsense mixing platforms-anywhere quality sound is
required. The layout of the controls is straightforward, so first time user's can be up and
mixing in no time. Feature like -10dB and line-level inputs and outputs, accurate 4-segment
meters, 3 band EQ, phantom power -as well as 1/8" and 1/4" headphone outputs provided
added mix and monitoring flexibility.
INTRODUCTION
Professional Mixer is the result of many years of experience in the use, design and manufacturing
of professional sound reinforcement products. We take great pride in engineering and building
every product and wish to thank you for entrusting us with your sound.
Please take a few minutes to read this manual completely in order to ensure that you get
the most out of your Mini Mixer.
MINI MIXER OVERVIEW:

FEATURESFEATURES
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2 x 2 Track (2TK) inputs (RCA + 3.5mm)
2TK to Mains/ Headphones Switches
Digital EFX: 16 effects
Headphone Outputs (TRS + 3.5mm) with level control
Mini Size,light weight
MP3 Player With USB jack
High Quality Multi-Channel Mixer
6/8/10/12 Channels
Channels
XLR+TRS balanced inputs
3 band (Low/Mid/High) EQ
Gain adjustment
EFX level control
L/R pan control
Phantom Power
Clip LED
Stereo Channels
TRS balanced inputs
2 band (Low/High) EQ
EFX level control
Balance adjustment
-10dB/ +4dB switch

MINI MIXER 6/8/10/12 CHANNEL
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MIXER FRONT PANELMIXER FRONT PANEL

DETAILED FEATURESDETAILED FEATURES
Mono Mic / Line Input Channel
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Each mono channel each feature a three band Equalization
("EQ") section. Each band is chosen from the prime
frequencies for most musical applications, and allows up
to 15 decibels of boost (increse) or cut (decrease) of the
signal in the tone range for which it controls. In the center-
detent position (0), the equalizer is bypassed (flat)and the
control has no effect on the tanal characteristics of the
signal. The HIGH control is centered at 12KHz. The MID
control is centered at 2.5kHz and the LOW EQ control is
1. Low Impedance (Low Z) MIC Input
Mono Channels
The law noise, high headroom "law Z" MIC inputs are for
use with balanced, law impedance dynamic or conderser
NOTE: Condenser micrphones generally require phantom
power. If your condenser microphone appears not to be
working check that the phantom power switch (master
microphones.
section - 5) is engaged.
2. LINE IN
These 1/4" Tip, Ring, Sleeve (TRS) jacks are designed to be
connected with (-10 to +4dBu) balanced or unbalanced
line level sources.
3. GAIN Control
In order to achieve the best signal to noise ratio and
adequate dynamic range, the input preamp level of the
Mit/Line channels is adjusted with o GAIN control on
each mono channel. Set the GAIN control by watching
the LED bar-graph meters-above the MAIN MIX level
control in the Master section of the mixer- while the
signal source for that channel is active (whether it be a
microphone or an instrumetn connected to the LINE IN of
the channel). The ideal level is between 0dB and +6dB
on the bar 9raph meters. If the CLIP LED on the channel
lights up consistently, the GAIN control is set too hi9h. It is
acceptable for the CLIP LED at flash periodically especially
with loud instruments like drums or during peak sound
levels during loud portions of a performance.
4. CLIP LED
The CLIP LEDs (on channels 1 to 4) will light up when the
input signal is driven too high This indicates that the signal
is overloading the preamp and causing distortion.
5. EQ Section
centered at 80Hz.
MINI MIXER 6/8/10/12 CHANNEL
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6. EFX Section
The EFX control allows you to mix the dry (i.e. no effects)
sound with the effects signal. Same instruments and voices
sound better with a different level of the effects added in
to the clean signal. This control allow you to mix the effects
in as you like. Sometimes the sound by itself sounds good
with a certJon level of effects but when mixed with the other
channels signals, the sound does not sound the same. You
can tailor the sound of each input by adjsuting this control.
7. Pan and Level
Pan Control: On each mono channel, the PAN control
adjusts the left/right balance of the mono signal being
sent to the left and right MAIN MIX outputs.
8. The Channel LEVEL Control
The Channel LEVEL knob allows for control of the level
of the signal that is being sent to the MAIN MIX master
volume control. Adjust each channel level control to accquire
the best "mix" , or balance of signals, from each input.
Stereo Channel Inputs
operates as a mono channel.
2. EFX
This control allows you to adjust any effects you want to
add to the signal of your stereo (2 channel) device in the
same fashion s the mono channels.
1. EQ(HIGH/LOW)
Each stereo channel feature a two band Equalization
section. Each band is chosen from the prime frequencies
for most musical applications, and allows up to 15 decibels
of boost (increse) or cut (decrease)of the signal in the tone
range for which it controls. In the centerdetent position (0),
the equalizer is bypassed (flat)and the control has no effect
on the tanal characteristics of the signal. The HIGH control
is centered at 12KHz. The LOW EQ control is centered at
80Hz.
Each of the stereo channels feature two line level inputs
withl/4'' Tip/ Ring/Sleeve(TRS) jacks for both balanced and
unbalanced left and righ input isgnals. These inputs can
occommodate both stereo and mono inputs. When using a
mono source, connect the cable to the LEFT (MONO) input
only. Stereo Channels have stereo inputs with left and right 1/4"
Tip/Ring/Sleeve (TRS) input jacks. LEFT (MONO) input: When
only one plug is inserted into the LEFT jack, the channel
1
2
3
4
6
8
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This section also consists of two sets of three output jacks.
These are the bottom row of jacks in the "2TK OUT" section
PAN Control
3. PAN and LEVEL
On a stereo channel, with a stereo input connected, turning
the PAN control to the left will case right input's
signal level to decrease. Turning the PANcontrol fully
right on a stereo channel will cause the left Jnput's signal
level to decrease. If a mono input is connected to a stereo
channel, the PAN control will function as a PAN
control by adjusting the left/right PAN of the mono
signal being sent to the left and right MAIN MIX outputs.
4. Stereo Channel Level Control
The stereo channel level control allows for control of both
the left and right signals being sent to the MAIN MIX
master volume control. If a mono input is connected to a
stereo channel, the channel functions like a mono channel.
Master Section
The master section on the right side of the mixer controls
the final gain stage of the mixed signals from the input
channels. The MAIN MIX control allows for the adjustment
of the overall output level of the mini mixer.
POWER LED & Signal Metering
1. POWER LED
This amber LED lights indicating power is on for the mixer.
2. Level Meters
The signal level of the MAIN MIX output is displayed on the
4 segment LED bar-graph meters. Levels shown are -20, 0,
6 and CLIP.
3. 2TK IN
This section consists of two sets of three input jacks. The top
row of jacks are the "2TK IN" jacks which are a 1/8" stereo
jack and a left and right RCA jack. These inputs allow for
the introduction of an external stereo signal to the mixer.
This signal is controlled by the 2TK IN volume control and
the 2TK TO PHONES switch as well as the 2TK TO MAINS
switch. When the 1/8" 2TK IN jack is used, it takes priority
over the RCA 2TK IN jacks.
4. 2TK OUT
MINI MIXER 6/8/10/12 CHANNEL
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4
5
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The included power adaptor connects here. Use only the
featuring a 1/8" stereo jack, and left and right RCA jacks.
These outputs allow for the routing of MAIN MIX stereo
signal out of the mixer. This signal level is controlled by the
MAIN MIX volume control. When the 1/8" 2TK OUT jack is
used, it takes priority over the RCA 2TK OUT jacks.
5. PHANTOM Power Switch:
Condenser microphone require power; either from a
battery or power supply or getting it right off the mixer.
6. MAIN OUT1/4" L/R Outputs
Left and Right balanced, TRS (Tip, Ring, Sleeve) "output
jacks for connection to amplifier inputs or recording device
inputs.
7. Phones
stereo headphone output jack. A parallel connection to
a convenient 1/8" mini stereo headphone jack is also
included, allowing for portable headphones and ear
buds. Volume is set with the PHONES level control. Be
aware that very high volume levels are possible from this
output. Make sure the level is set all the way down before
connecting headphones.
This is a standard " Tip-Ring-Sleeve (TRS) amplified
8. FX Master Control
The FX Master Control allows you to choose which effect
you want to use. The FX to MAIN control allows you to
send as much of the effected sound to the MAIN output
controls. Keep in mind that you are adding signal and make
sure you are not overdriving the main output. The FX
on/off switch is a good way to quickly compare the "wet"
and "dry" sound.
9. POWER Switch - On/Off
This slide switch turns the unit on and off. Always power
down the mixer when it is not in use. Be sure to turn off all
system amplifiers or powered speakers before turning off
the mixer.
10. AC Power Cable Connector
power adaptor supplied with the mixer.
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MINI MIXER 6/8/10/12 CHANNEL
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MP3 Player (Digital Audio Player) SectionMP3 Player (Digital Audio Player) Section
1.USB Input Jack
2.Power &Playing LED
This LED will light up when there is power supply to the MP3 player, when plug in the USB, it flashes and
indicate the USB is working, when push the PLAY/PAUSE button , it will stop flashing and just light
up.When push PLAY/PAUSE button again, it will flash again.
3. PLAY/PAUSE Button
This is the PLAY/PAUSE button of this MP3 player. Push this button to PLAY or PAUSE the playing
of the MP3 player.
4.NEXT/VOL+ Button
5.PREV/VOL- Button
This is the search forward and add volume of the MP3player button, push it once to sear ch the next one,
push twice to search nextand next one; push it more than 3 seconds it will add the volume of the MP3
player.
This is the search backwardand reduce volume of the MP3 player button, push it once to search the
previousone, push twice to search previous and previous one; push it more than 3 secondsit will reduce
the volume of the MP3 player

SETTING UPSETTING UP
These channels allow you to plug digital keyboards, computers, sequencers and any other
stereo (2 ch.) devices. The same procedure as above is used to set up these channels.
The professional features of the Mini Mixer makes it easy to use and to tailor the sound of
your system.
Always make sure there is a good electrical ground. Before turning on the mini Mixer, be
sure that the power switch is in the off position, the volume controls are all the way down
(- level) and all audio connections are made before switching the speaker on.
CONNECTIONS / WIRING
The mini Mixer input panel has one XLR plus one TRS connector for each of the mono
channels and TRS connectors in stereo Channels. Be sure to use high quality shielded cable
and connectors.
Mono Channels:
Balanced XLR microphone and line inputs make it easy to plug microphones into the mixer.
Plug in your mics, making sure the output volume is Iow, PAN and all EQ controls are in the
center detent position, and all GAIN controls and all the way down.
For best results, the gain throughout the system should be matched from one device to the
next.
Follow these few steps and you are on your way to great sound!
Set the first channel LEVEL control in the "12 o'clock" position. All others are down (- ).
Speak into your mic (or start the CD player) and, watching the meters, slowly increase
the level using the GAIN control at the top of the channel. The meters should only ticker
on the CLIP (RED) LED.
Adjsut the EQ the way you like, keeping in mind that extreme EQ effects the output level.
If the CLIP LED glows, turn the GAIN control down (anti-clockwise) until the LED just
flickers.
Repeat for each channel used.
Adjust the MAIN MIX control so that the CLIP LED is only on a very short time-NEVER
ON SOLID.
The gain of the next device, usually an amplifier just night be very Iow. This is OK as it is
getting the cleanest, strongest signal from the mixer.
If you are using a Graphic EQ, follow the same steps to set up the GAIN from the mixer
to the EQ to the amplifier.
Stereo Channels:
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= SIGNAL (SHIELDED) CABLE
= LOUDSPEAKER (NON-SHIELDED) CABLE
How to use FXHow to use FX
TYPICAL WIRING DIAGRAM FOR THE mini mixer
SINGAL IPUT
MIC, CD etc. TO MIXER
MIXER
OUTPUT
INPUT TO
GRAPHIC EQUALISER
SEPARATE
HIGH/MID
AND LOW
OUTPUTS TO
AMPLIFIER(S)
FROM
CROSSOVER
INPUTS TO CROSSOVER
SEPARATE
HIGH/MID
SPEAKER
OUTPUT TO
HIGH/MID
SPEAKER
FROM
AMPLIFIER
SEPARATE
LOW
SPEAKER
OUTPUT TO
LOW
FREQUENCY
SPEAKER
FROM
AMPLIFIER
INPUTS TO AMPLIFIER(S)
MINI MIXER 6/8/10/12 CHANNEL
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BLOCK DIACRAMBLOCK DIACRAM
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SPECIFICATIONSSPECIFICATIONS
Maximum OutputLevel
(0,5%T.H.D at 1KHZ)
+22dB(MIX L/R)@600ohm
+22dB(2TK)@ 600ohm
over150mv(headphone) 32ohm
Total Harmonic Distortion 0.0025%@+14dB
20Hz-20KHz (MIX L/R,2TK)@600ohm
Frequency Response 20Hz-20KHz. +0/-1dB
(MIX L/R.2TK) 600ohm
Hum and Noise
(Average.Rs=t50)
-127dB Equivalent Input Noise
-92dB Resodual Nolse(MIX L/R,2TK)
-88dB(MIX L/R, 2TK)
Maximum Voltage Gain 80dB MIC IN TO MIX L/R.
80dB MIC IN TO 2TK
72dB LINE IN TO MIX L/R.
72dB LINE IN TO 2TK.
30dB ST TO MIX L/R.
20dB 2TK L/R IN TO MIX L/R
Maximum Levels Mic in: +4dB
2TK in: +20dB
Interference(crosstalk)at 1KHz Main VR Min: -87dB
Channel VR Min: -70dB
Mono Input Channel Gain 50dB Variable (-60dB~-10dB) (-40dB~+ I0dB)
Input Channel EQ
High: (+/-15dB) 12KHz Shelving
MID: (+/-15dB) 2.5KHz Shelving
LOW:(+/-15dB) 80Hz Shelving
Level meter
4-Segment LED*2 (+4dB output at 0dB on Meter) Main L/R
Clip indicator Input:turns on at 3dB before clip
Effect 16 Effect out
Power/Power consumption AC 110V/120V/230V/240V, 50/60Hz
MINI MIXER 6/8/10/12 CHANNEL
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mini-mixer Specifications
6ch 8ch 10ch 12ch
2.05 2.45 2.75 3.35
245X186X45 303X186X45 361X186X45 419X186X45
Weight(kgs)
Dimenson(mm)