Chiayo APEX PRO User manual

CHIAYO ELECTRONICS CO., LTD.
Operation manual
APEX PRO
Portable Wireless PA System

1
APEX PRO Portable Wireless PA System
Important safety instructions
⚫Read all of the instructions before the product is operated.
⚫Keep these instructions well for future reference.
⚫Follow all of the warnings and instructions when installing, setting up and using the product.
⚫Only clean the product when it is not connected to the power supply system. Clean only with
a dry cloth.
⚫Keep ventilation openings unblocked and follow with the manufacturer’s instructions for
installation.
⚫Do not immerse product in any liquid or expose to heat or moisture
⚫Keep the complete polarized or grounding type plug without any modification. A polarized
plug has two blades with one wider than the other. A grounding type plug has two blades and
a third grounding prong. The wider blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
⚫Power supply cords should be well routed to prevent from being walked on or pinched by
items placed upon or against them, particularly at plugs, convenience receptacles, and the
point where they exit from the product.
⚫Use only manufacturer authorized or recommended accessories.
⚫Use only with a cart, stand, tripod or accessories specified or provided by Chiayo. Be careful
when using a cart to avoid injury from tip-over.
⚫Unplug the product during an electrical strom or when unused for long periods of time.
⚫Never disassemble, modify or service the product. Any unauthorized modifications may result
in personal injury and/or product failure. Additionally, your warranty will be void.
⚫Operation Temperature: 35 Degree Celsius Maximum.

2
Operation manual
Warning
Please read and follow the instructions in this manual thoroughly to obtain optimum results from
this unit. We also recommend that you keep this manual handy for future reference.
Safety Precautions
⚫Be sure to read the instructions in this section carefully before use.
⚫Make sure to observe the instructions in this manual as the conventions of safety symbols
and messages regarded as very important precautions are included.
Safety symbols and messages described below are used in this manual to prevent bodily injury
and property damage which could result from mishandling. Before operating your product, read
this manual first and understand the safety symbols and messages so you are thoroughly aware
of the potential safety hazards.
WARNING
Indicates a potentially hazardous situation which, if mishandled,
could result in death or serious personal injury.
CAUTION
Indicates a potentially hazardous situation which, if mishandled,
could result in moderate or minor personal injury, and/or property
damage.
Make sure to observe the following handling precautions so that a fire or personal injury does
not result from leakage or explosion of the battery.
⚫Do not short, disassemble, heat or put the battery into a fire.
⚫Never charge batteries of the type which are not rechargeable.
⚫Do not solder a battery directly.
⚫Be sure to use the specified type of battery.
⚫Note the correct polarity when inserting a battery in the unit.
⚫Avoid locations exposed to the direct sunlight, high temperature and high humidity when
storing batteries.
⚫Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery,
that can result in an explosion;
⚫Leaving a battery in an extremely high temperature surrounding environment that can result in
an explosion or the leakage of flammable liquid or gas;
⚫A battery subjected to extremely low air pressure that may result in an explosion or the
leakage of flammable liquid or gas.
WARNING
To prevent the electromagnetic wave from badly influencing
medical equipment, make sure to switch off the unit's power when
placing it in close proximity to the medical equipment.
CAUTION
Battery discharge naturally according to a certain pattern even not
in use. For best performance and a prolonged lifespan, battery
should be charged regularly after every use or every month when
the system is in storage and not being used!
CD player optical pick up head is a very delicate device and
sensitive to humidity. Please avoid using it in high humidity area
to avoid damage!

3
APEX PRO Portable Wireless PA System
INDEX
1. Instruction.......................................................................................................................... 4
1-1 In the box.................................................................................................................... 4
1-2 Optional related products............................................................................................. 4
1-3 Parts and functions...................................................................................................... 5
1-4 Charging the battery.................................................................................................... 6
1-5 Module compartment................................................................................................... 7
1-6 Connection with external audio sources........................................................................ 7
2. Settings and Operations..................................................................................................... 8
2-1 Using the wired microphone (MIC 1, MIC 2).................................................................. 8
2-2 Using the wireless receiver .......................................................................................... 9
2-2-1 Parts and functions .............................................................................................. 9
2-2-2 Channel synchronization of the receiver and transmitter........................................ 9
2-2-3 Channel scanning.............................................................................................. 10
2-2-4 Squelch (SQ) setting.......................................................................................... 10
2-2-5 Volume and other settings.................................................................................. 11
2-3 Using the electronic instrument (MIC 1, MIC 2)........................................................... 12
2-4 Using the electronic instrument (LINE IN)................................................................... 13
2-5 Music audio input (LINEIN)- Smart phone / tablet / MP3 player................................... 14
2-6 Music audio input (DIGITAL IN)- Computer/notebook.................................................. 15
2-7 Operating BLUETOOTH receiver (BLUETOOTH) ....................................................... 16
2-8 EQUALIZER for WIRED and WIRELESS MICROPHONE and MUSIC ........................ 17
2-9 VOICE PRIORITY ..................................................................................................... 18
2-10 REVERB................................................................................................................. 18
2-11 Limiter Function....................................................................................................... 18
3. Application....................................................................................................................... 19
3-1 Active audio link: APEX PRO to APEX PRO............................................................... 19
3-2 Active audio link: APEX PRO to APEX SLAVE ........................................................... 20
3-3 Wireless audio link: repeat all audio to linked APEX PRO / APEX SLAVE.................... 21
3-3-1 Parts and functions of RP-5100M ....................................................................... 21
3-3-2 Changing channels............................................................................................ 21
3-3-3 Music audio input (AUX IN)- Smart phone / tablet / MP3 player............................ 22
3-3-4 Adjust internal audio gain level........................................................................... 22
3-3-5 Output power setting.......................................................................................... 22
3-4 More extension.......................................................................................................... 24
3-5 Connecting a passive companion speaker.................................................................. 25
4. Installing or replacing a receiver/repeater/MP3 module...................................................... 26
5. Operation of the storage for transmitters and accessories.................................................. 27
6. FAQ & useful operation tips.............................................................................................. 28
7. Maintenance-free Lead-acid and Lithium batteries............................................................. 30

4
Instruction
1. Instruction
Congratulations and thank you for purchasing this all-in-one portable
sound system. To ensure a trouble-free operation, please read the
manual thoroughly to fully understand its controls and functions.
The rear panel of these portable sound systems is divided into 3
sections:
1. Module compartment
2. Control Unit compartment
3. Battery compartment
The Modules Compartment can be user configurable and user can
access the battery compartment to change battery.
1-1 In the box
APEX PRO amplifier
0-4 handheld / beltpack
transmitters (optional)
switching power supply
(plug varies from country to country)
operation manual
.
1-2 Optional related products
▍Modules & transmitters (For more information about transmitter, please refer to its user
manual)
SDR-8200M IrDA
Ture diversity receiver module
SQ-6100 IrDA
SQ-5100 IrDA
Handheld microphone
SDR-8100M IrDA
Diversity receiver module
SM-7100 IrDA
SM-6100 IrDA
Belt-pack transmitter
DWR-5410M
2.4G digital receiver module
DH-5400
Handheld digital microphone
DB-5400
Belt-pack digital transmitter
RP-5100M
Repeater module
DPR-500m
MP3 recorder module
▍Speakers
APEX SLAVE
Active companion powered
speaker
APEX SP
Passive companion speaker
▍Accessories
ST-50
Tripod stand: standard
ST-51
Tripod stand: height adjustable
DC-55
Weather proof dust cover
DM-series
Wired microphone, please refer
to CHIAYO website.
Module
compartment
Control unit
compartment
Battery
compartment

5
APEX PRO Portable Wireless PA System
1-3 Parts and functions
TREBLE
EXTERNAL SPEAKER
socket (4-8Ω)
MIDDLE
MIC/LINE ①
volume control
MIC/LINE ①
level switch
MIC/LINE input
①(combo)
MIC/LINE input ②
(combo)
REVERB control
REVERB push
button
MIC/LINE ②
level switch
LINE IN
volume control
LINE IN socket
(3.5mm)
LINE IN socket (combo)
EXTERNAL SPEAKER
volume control
MASTER limiter indicator
MASTER volume
control
BASS
MIC/LINE ②
volume control
VOICE PRIORITY
push button

6
Instruction
1-4 Charging the battery
This amplifier uses either two lead-acid batteries or one lithium battery. The battery power is
leveled from 25%, 50%, 75% and FULL. If the LED stays at 50%, the battery might not be
sustainable for long operation.
battery indicator charging indicator
Charging indicator
Condition
Flashes RED
During recharging
Solid GREEN
Fully charged
Solid YELLOW
Error or no battery detected
BLUETOOTH
pairing indicator
BLUETOOTH
power push button
audio link output
audio input of
computer
battery indicator
DC IN
DC input jack (30V/4A)
charging indicator
power switch

7
APEX PRO Portable Wireless PA System
1-5 Module compartment
1-6 Connection with external audio sources
For receiver module
For receiver module
For receiver /
repeater module
For receiver / MP3
module
For module bracket MB-50 which offers 2 slots for
adding receiver / MP3 module.
WIRED MIC / INSTRUMENT
TABLET / PHONE
PASSIVE SPEAKER
ACTIVE SPEAKER
COMPUTER
INSTRUMENT

8
Settings and Operations
2. Settings and Operations
2-1 Using the wired microphone (MIC 1, MIC 2)
1 Plug a wired microphone with a 6.3mm or XLR connector to MIC 1 or MIC 2.
2 Slide MIC/LINE switch to MIC position.
3 Turn on master POWER and then adjust its individual volume control to a desired level.
4 TREBLE / MIDDLE / BASS EQUALIZER (refer to P.17) and REVERB (refer to P.18)
levels can be adjusted individually.
EQUALIZER REVERB ON/OFF
or

9
APEX PRO Portable Wireless PA System
2-2 Using the wireless receiver
2-2-1 Parts and functions
2-2-2 Channel synchronization of the receiver and transmitter
Align infrared areas of the receiver and transmitter within 10~30cm.
■Changing receiver’s channel
1 Press the synchronization
button of the transmitter.
►
2 The transmitter's LED will
grow to denote
synchronization signal
transmitted.
3 The channel number on
the receiver’s LED will
become the same as the
transmitter’s, which
means the receiver has
been successfully
synchronized.
■Changing transmitter’s channel
1 Press the SYNC button of
the receiver.
►
2 The transmitter's LED will
grow to denote
synchronization signal
received.
3 The channel number on
the transmitter’s LCD will
become the same as the
receiver’s, which means
the transmitter has been
successfully
synchronized.
If it doesn’t work check that you have the IR sensor panels aligned, that they are facing each
other, devices are within 10~30cm of each other, and try again.
SET SYNC MINPWR/VOL
CH
RF AF
AB
0 10
652.250
AF
RF signal meter
Channel
Diversity A/B
antenna
Transmitter battery
power
Frequency
DOWN button
UP button
SET button
IrDA synchronization
button
IR sensor area
Power switch /
volume control
LCD
Audio signal
meter
10~30cm

10
Settings and Operations
2-2-3 Channel scanning
For an interference- free operation, a cleaner channel might be necessary if the current one
receives too much interference. To operate the scanning:
1 Press ▼(down) or ▲(up) button to make
the frequency icon appear on the
bottom.
2 Hold SET button until this icon
flashes to denote readiness for setting.
3 Press ▼(down) or ▲(up) button to find
and locate a clear, interference- free
channel.
4 After a channel is chosen, press SET
button or wait 5 seconds to store the
setting.
2-2-4 Squelch (SQ) setting
When interference is encountered try reducing the sensitivity of the receiver, thus less
susceptible to interference. To operate the squelch setting:
1 Press ▼(down) or ▲(up) button to turn to
the squelch setting page.
2 Hold SET button until this icon
flashes to denote readiness for setting.
3 Press ▼(down) or ▲(up) button to select
a new squelch level between 01 and 10.
The default level is 01.
4 After a level is chosen, press SET button
or wait 5 seconds to store the setting.
Since increasing the squelch level will also reduce the reception distance, it’s recommended to
choose the lowest level that can eliminate the interference.
If this still does not solve the problem it means this frequency is not suitable. Adjust the squelch
back to its default level (LE-01) and use the scan function to locate a clear, interference-free
channel.
RF
CH
FREQ
RF AF
AB
099
674.500
CH
FREQ
RF AF
AB
099
674.500
RF
CH
FREQ
RF AF
A B
089
672.000
RF
SQ
le-0 1
SQ
le-0 1
RF
SQ
le-03

11
APEX PRO Portable Wireless PA System
2-2-5 Volume and other settings
1 Turn on master POWER and then adjust its individual volume control to a desired level.
2 TREBLE / MIDDLE / BASS EQUALIZER (refer to P.17) and REVERB (refer to P.18)
levels can be adjusted individually.
EQUALIZER REVERB ON/OFF
SET SYNC MINPWR/VOL

12
Settings and Operations
2-3 Using the electronic instrument (MIC 1, MIC 2)
1 Plug an electronic guitar / keyboard with a 6.3mm or XLR connector to MIC 1 or MIC 2.
2 Slide MIC/LINE switch to LINE position.
3 Turn on master POWER and then adjust its individual volume control to a desired level.
4 TREBLE / MIDDLE / BASS EQUALIZER levels can be adjusted individually. (refer to
P.17)
EQUALIZER
or
or

13
APEX PRO Portable Wireless PA System
2-4 Using the electronic instrument (LINE IN)
1 Plug an electronic guitar / keyboard with a 6.3mm or XLR connector to the COMBO
jack of LINE IN.
2 Turn on master POWER and then adjust its individual volume control to a desired level.
3 TREBLE / MIDDLE / BASS EQUALIZER levels can be adjusted individually. (refer to
P.17)
EQUALIZER
or
or

14
Settings and Operations
2-5 Music audio input (LINE IN)- Smart phone / tablet / MP3 player
1 Plug the audio cable a 3.5mm phone plug to the 3.5mm jack of LINE IN.
or
2 Turn on master POWER and then adjust its individual volume control to a desired level.
3 TREBLE / MIDDLE / BASS EQUALIZER levels can be adjusted individually. (refer to
P.17)
EQUALIZER

15
APEX PRO Portable Wireless PA System
2-6 Music audio input (DIGITAL IN)- Computer/notebook
1 Use a USB cable to connect the unit and your PC/Notebook to use APEX PRO as the
speaker of your device.
2 Turn on master POWER and then adjust master volume control to a desired level.
3 TREBLE / MIDDLE / BASS EQUALIZER levels can be adjusted individually. (refer to
P.17)
EQUALIZER

16
Settings and Operations
2-7 Operating BLUETOOTH receiver (BLUETOOTH)
1 Turn on master POWER and then press the SWITCH button 3 seconds to turn on the
BLUETOOTH receiver. The pairing indicator will flash green.
Approximately 9 seconds later, the pairing indicator flashes green and red, which
means it is ready for pairing.
2 Activate BLUETOOTH on your device (phone, tablet, PC., etc) and pair with external
BLUETOOTH device named “BT AUDIO”. After successful linking, the pairing indicator
will be solid green and you can play your music on APEX PRO.
3 Adjust master volume control to a desired level.
4 TREBLE / MIDDLE / BASS EQUALIZER levels can be adjusted individually. (refer to P.17)
EQUALIZER
Settings Bluetooth
Bluetooth
DEVICES
BT AUDIO
Now Discoverable
...
flash
RED
flash
GREEN
flash
GREEN
solid
GREEN
solid
GREEN

17
APEX PRO Portable Wireless PA System
Important
◼The BLUETOOTH automatically turns off after no pairing for 5 minutes.
◼Press SWITCH button for disconnection and getting ready for new pairing.
◼The BLUETOOTH can memorize and automatically connect to last-paired device.
2-8 EQUALIZER for WIRED and WIRELESS MICROPHONE and MUSIC
EQUALIZER adjustment is actually used to increase or reduce the high/medium/low frequency
component of the speaker's restored sound. It is so-called raising or attenuating TREBLE/BASS
via frequency-specific volume knobs to improve human voices or make musical instruments’
sound more prominent. According to the scale marks on the panel, clockwise adjustment is to
increase and boost and opposite direction to decrease and attenuate.
Adjust the level of high frequency (TREBLE), middle frequency (MIDDLE), and low frequency
(BASS) respectively. All signals have been balanced by the high and low sounds after entering
the amplifier so it is not necessary to adjust the EQUALIZER during the output to the speaker. It
is recommended to maintain the position of BASS, MIDDLE and TREBLE at just 12 o'clock.
KNOBS
BASS
MIDDLE
TREBLE
FUNCTION
increase or reduce the low
frequency component of the
sound
increase or reduce the
medium frequency
component of the sound
increase or reduce the high
frequency component of the
sound
RANGE
-12 dB～+12 dB
DEFAULT
12 o'clock
Adjustment reference:
◼BASS: It is the basic part of the sound. It accounts for 70% of the entire audio energy and is
an important component to display the music style. When appropriate, the BASS is relaxed
and the sound is full and soft. If you feel the sound is thin, you can moderately increase the
BASS. If you feel the sound is muffled, not clear, or too nasal, you can moderately reduce the
BASS.
◼MIDDLE: Containing the low harmonics and overtones of most musical
instruments. It is the characteristic sound of snare drums and percussion
instruments. The sound is clear and bright when appropriate. If you feel the sound
is blurred, you can moderately increase the MIDDLE. If a phone-like sound
appears, you can moderately reduce the MIDDLE.
◼TREBLE: It’s the frequency that affects the sound layering. If you feel that the
sounds of instruments such as Piccolo and Flute are too prominent, or the tooth
sound of the voice is too heavy and the tone is sharp, you can moderately reduce
the TREBLE.

18
Settings and Operations
2-9 VOICE PRIORITY
Voice Priority operation is only necessary when CD/USB/MP3 is playing.
When the Voice Priority switch is ON, the ducking function will be activated. While the music is
playing, a voice input from either a WIRED or WIRELESS MICROPHONE will temporarily
override and lower the volume of the background music and voice could be heard more clearly.
Background music will return to its original setting when no audio input is entering the
microphone after certain seconds. However, if the microphone is not switch off, the reentering of
music into the microphone will also activate the voice priority function.
2-10 REVERB
This function can add extra depth to the sound of WIRED or WIRELESS MICROPHONE to
create a realistic acoustic ambience. You can adjust the reverb depth by using the REVERB
knob. The depth range is from MIN through MAX. The MIN level produces no effect, while MAX
level produces maximum reverb depth. When REVERB is turned off, no effect is applied.
2-11 Limiter Function
The function of the limiter is to maintain a certain output level of the signal below a specific
maximum in order that the output of this pre-amplified signal level is effective while preventing
sound distortion and avoiding the speaker from breaking or malfunctioning due to excessive
load. The purpose of the six input signal source (microphone, musical instrument or music)
signal level indicators, from -20dB (min) to +6dB (max), is to display the real-time dynamic level
of the sound signal. Please do not exceed the 5th indicator (+3dB) flashing when adjusting the
volume of each input to prevent distortion.
Normal volume
nearly distortion
distortion
+6
+3
0
-6
-12
-20
+6
+3
0
-6
-12
-20
+6
+3
0
-6
-12
-20
+6
+3
0
-6
-12
-20
+6
+3
0
-6
-12
-20
+6
+3
0
-6
-12
-20

19
APEX PRO Portable Wireless PA System
3. Application
3-1 Active audio link: APEX PRO to APEX PRO
APEX PRO operates as the MASTER as well as companion unit in an audio link (wired)
configuration.
1 Connect one APEX PRO after the other via the COMBO LINE IN and ACTIVE OUT
jacks.
2 Turn on master POWER of EACH APEX PRO and then adjust master volume control
to a desired level.
3 TREBLE / MIDDLE / BASS EQUALIZER levels can be adjusted individually. (refer to
P.17)
EQUALIZER
APEX PRO
APEX PRO
APEX PROAPEX PRO
Important
◼Max cable length: ≤20m
◼Recommended linking no
more than 5 units. Too
many units may result in
audio delay.