User Guide
GPA-820 D1
Wireless active speaker
with Duo Receiver
Part no 504820
3
Features
120W power output (max).
Two-way speaker – 8” woofer and 1” tweeter – deliver great sound projection.
Supports max two UHF ACS receiver modules (DR-501A) or UHF Duo receiver modules (DR-500)
allows 4 wireless microphones to operate concurrently.
Integrated Bluetooth function for audio streaming from smartphone and tablet.
Built-in Echo sound effect & delay applied on wireless mics and audio inputs (GPA-828 ONLY).
Various audio player modules for option – MP3, CD, DVD, pitch control or recording – at users' choice.
Voice priority allows a reduced music volume when a microphone is used.
4-segment battery meter for charging and power status reading.
Two power models – AC or Battery powered.
Runs 4-6 hours on a charge (built-in battery charger).
Retractable handle and PU wheels allows users to move without difficult
y.
Contents
Features 3
Product mix & Illustrations 4
Controls and Operations 5
UHF Duo Receiver Module DR-500 6
UHF Audiolink Transmitter TX-701-820 8
Troubleshooting 9
Important Maintenance Guideline 9
Specifications 10
Environment 11
Important notes 11
4
6
7
8
9
10
13
14
11
12
2
3
5
1
4
GPA-828
GPA-820
1. Horn Tweeter
9. Master Control Panel
DR-500
DR-501A
CD-800S+
CD Player
CD-800S+
GPA-820
GPA-828
GPA-820W1
GPA-820WT1
GPA-828W1
GPA-828WT1
GPA-820D1
GPA-828D1
GPA-820DU1
GPA-828DU1
GPA-820/828 series
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2. Speaker Grill /
Full Range Speaker
8. CD Player
MIC
LINE
TX-701-820
11. AC Power Input
12. Battery Cover
13. PU Wheels
14. Tripod Hole
Illustration
Product Mix
Model
5. Ventilator
6. Trolley Handle
4. Speaker Holes
7. Wireless UHF Receiver Module
10. UHF Audiolink Transmitter Module
UHF Audiolink
Transmitter Module
TX-701-820
A1
A4 B2 B3 C2 C4C3 D3 D4A3 E2A5
A2 B1 C1 D1 D2 E1
A1/A2. Treble/Bass
A3. Master
A5. Voice priority
B1. Line input volume
B2. Line input (RCA)
F
F
F
Adjust the volume of all mixed audio inputs.
Original audio when knob is set on the middle.
Adjust the volume of all mixed audio inputs.
A4. Voice priority indicator
Degenerate music level when MIC is in use.
MIC
LIN E
B3. Line output
C1. AUX IN/Bluetooth volume
C2. AUX input (3.5mm)
C3. AUX output (3.5mm)
C4. Bluetooth button
F1
GPA-820
GPA-828
MIC
LIN E
F2
F3 F4
ON
D2. MIC 1 volume
D1.MIC 2 volume
D3. MIC 2 input 6.3mm
D4. MIC 1 input 6.3 mm or XLR Balanced
E2. Power switch
E1. Batter y indicator
Switch signal input of (MIC 1) level orline
input level.
F1. Mic/Line switch (GPA-820 only)
Controls and Operations
After button pressed, LED flashes on, voice over
music priority function on.
Press and hold in 2 seconds to switch Bluetooth
on/off and a tone sound will display.
When Bluetooth activated, the indicator will
flashes blue and ready for pairing.
Connecting and searching Bluetooth device on
your tablet device when under pairing mode.
When it searched and completed, select a device
named “OKAYO GPA” from pairing list and
connected.
It will have a tone sound when paired and steady
light indicated on Bluetooth button. You can now
streaming audio via Bluetoot
h.
When a user moves out of range for the Bluetooth
connection, the audio stream will be severed until
the user returns to a location within range of the
module. The range is about 10 metres.
F3. ECHO switch
F4. ECHO time delay switch
F2. ECHO volume
For UHF receiver module or MIC input signal
only.
5
A1
A4 B2 B3 C2 C4C3 D3 D4A3 E2A5
A2 B1 C1 D1 D2 E1
A1/A2. Treble/Bass
A3. Master
A5. Voice priority
B1. Line input volume
B2. Line input (RCA)
F
F
F
Adjust the volume of all mixed audio inputs.
Original audio when knob is set on the middle.
Adjust the volume of all mixed audio inputs.
A4. Voice priority indicator
Degenerate music level when MIC is in use.
MIC
LIN E
B3. Line output
C1. AUX IN/Bluetooth volume
C2. AUX input (3.5mm)
C3. AUX output (3.5mm)
C4. Bluetooth button
F1
GPA-820
GPA-828
MIC
LIN E
F2
F3 F4
ON
D2. MIC 1 volume
D1.MIC 2 volume
D3. MIC 2 input 6.3mm
D4. MIC 1 input 6.3 mm or XLR Balanced
E2. Power switch
E1. Batter y indicator
Switch signal input of (MIC 1) level orline
input level.
F1. Mic/Line switch (GPA-820 only)
Controls and Operations
After button pressed, LED flashes on, voice over
music priority function on.
Press and hold in 2 seconds to switch Bluetooth
on/off and a tone sound will display.
When Bluetooth activated, the indicator will
flashes blue and ready for pairing.
Connecting and searching Bluetooth device on
your tablet device when under pairing mode.
When it searched and completed, select a device
named “OKAYO GPA” from pairing list and
connected.
It will have a tone sound when paired and steady
light indicated on Bluetooth button. You can now
streaming audio via Bluetoot
h.
When a user moves out of range for the Bluetooth
connection, the audio stream will be severed until
the user returns to a location within range of the
module. The range is about 10 metres.
F3. ECHO switch
F4. ECHO time delay switch
F2. ECHO volume
For UHF receiver module or MIC input signal
only.
6
1
5
4
3
2
1. LCD Window
(Display Channel Number /
Reception Strength)
2. Channel A
Power Switch and Volume Control
3. Up / Down Frequency Selector
4. Frequency Set Key
5. Channel B
Power Switch and Volume Control
Operation and Setting
Switch on/Switch off
1. Turn “Channel A / B” knob (2) / (5) clockwise until a clickoccurs, thenLCDwindowwillbeonand a
textof“On”willappearonLCDwindow. After 1 ~ 2 seconds, the LCD window will show a channel
number and signal strength, it means the receiver module switched-on successfully.
2. Vice versa, turn “Channel A / B” knob (2) / (5) co
unterclockwise until a click occu rs, then LCD
windowwillshowa text of “OFF” for about 2 ~ 3 seconds. LCD window will be off after this
procedure, switched-off successfully.
Setting and Selection of Channels
Press and hold “SET” key (4) toenterthemodeofselectingthechannels
1. While both Channel A and Channel B are available, the channel number of Channel A shown on LCD
window starts to blink. Press “Up” or “Down” FrequencySelectorkeys (3) to look for your preferred
channel number. Press “SET” key (4) again to confirm the channel setting.
2. While only C
hannel A or Channel B is available, switch the channel number of Channel A or Channel B directly.
3. If you don’t press any key for more than 10 seconds, it will leave the channel-switching mode
with channel number kept.
4. Channel A and Channel B cannot be set with thesamechannelnumber.
Searching for Available Channels
1. Press “Up” and “Down” FrequencySelectorkeys (3) simultaneously formorethan 1 second, and
thenLCDwindowwillshow a text of withoutblinking. ChannelAandChannelBwillbe
switchedtoavailablechannels
automatically.Ifthereisnoanychannelavailable, thechannel
numberswillstillremainthesame.
2. Press “Up” FrequencySelectorkey(3)formorethan1second, andthenLCDwindowwillshow
, ChannelAwouldbeswitchedtoavailablechannelautomatically.
Ifthereisnochannelavailable, thechannelvaluewouldbekeptthesame.
3. Press “Down” Frequency Selector key (3) for more than 1 second, and then LCD window will show
, Channel B would be switched to available channel automatically. If there is no channel
available, the channel va
lue would be kept the same.
A
B
7
Press “Up” and “Down” Frequency Selector keys (3) simultaneously on DR-500 module 1 for more
than 1 second, you could find two available channels.
4. UsingtwoDR-500wirelessreceivermodulessimultaneously:
Switch on two Transmitters used for Wireless Receiver Module 1 and adjust the channel number
accordingly.
Press “Up” Frequency Selector key (3) on Wireless Receiver Module 2 for more than 1 second,
you could find available channel for Channel A.
Switch on the third Transmitter used for Wireless Receiver Module 2 and adjust the channel
number accordingly.
Press “Down” Fre
quency Selector key (3) on Wireless Receiver Module 2 for more than 1 second, you
could find available channel for Channel B.
Switch on the forth Transmitter. Finalize the process of four channels used simultaneously.
Setting of Group Number and SQ Value
1. Press “Set” key (4) andthenswitchonChannelAorChannelB to enter Group setting, and then LCD
window would show (numberwillkeepblinking).
2. Press “Up” or “Down” FrequencySelectorkeys (3) tolookforyourpreferredgroupnumber.
3. Press ”SET” key (4) toconfirmthegroupsettingorwaitfor 5 secondstoconfirmitautomatically
andthen enter setting mod
e ofSQvalue.
4. Under setting mode of SQ value, LCD window will show (number will keep blinking).
5. Press “Up” or “Down” FrequencySelectorkeys (3) tochooseSQvalue,thevaluewillnotbeset
incirculation.
6. Press “SET” key (4) againtoconfirmthe group setting or wait for 5 seconds to confirm it
automatically and then back to normal switching-on mode.
Please keep the distance between the Transmitter and the Receiver more than 2 M.
CAUTION!
8
1
6
5
4
3
2
1. LCD Window
2. TX Indicator
3. AF indicator
4. Frequency SET
5. UP / DOWN
6. Power/ Volume Knob
Operation
Press Frequency SET button enter into the selection mode, LCD Window will blink and shows channel
, press UP / DOWN button into desired channel or quit without setting in 10 seconds. To display
current used channel, simply press UP / DOWN button.
ON / OFF
Channel Selection
9
This unit has protection circuit against overcharge. The circuit will stop charging when battery is fully
charged even power cord is plugged.
Useful hint: You can still operate during charging.
No Sound Output
Be sure tran smitter and receiver stay at same channel.
Be sure volume control on transmitter and receiver are turned properly.
Be sure Master is turned properly.
Be sure Mute button is not on.
Check if transmitter and receiver stay at same frequency band.
Check if there is huge air interference nearby.
Failed to Power On
Be sure batteries are allocated and put in correct direction.
Be sure power adapter is plugged well.
Troubleshooting
DO NOT put the unit in the sunshine for a long time, or any other hot, humid environments or places
with flame. Stay away from any occasions where situation mentioned above might occur. Store the
unit in general indoor temperature or in cool circumstance.
Avoid heat, humidity
Charge BEFORE you start using for the fist time
After unpacking the unit for the first time, please charge the unit for about 8 hours. This is absolutely
necessary as the built-in rechargeable battery might have been discharged naturally due to long
transportation and storage time, even though it has been fully charged in the factory prior to shipment.
To secure a longer life for battery, please MUST execute this IMPORTANT process.
Charge fully
Ensure battery is fully charged BEFORE you store the unit. To remain a longer battery life and better
performance, make sure you charge the battery regularly every month.
When you need to use the unit again after a long period of storage, make sure you charge it
fully for at least 8 hours BEFORE any operations.
Please also charge this unit every time right after operation to secure a longer battery life.
This unit has DOD (depth of discharge) protection desig n. When Power Switch LED flashe s red
which means there isn’t enough elec tricity (when op
erating via the battery ’s p ower - this unit
will turn off automatically in a short ti me secure battery from deep-dis charging da mage. At this
moment plea se immediately recha rge you r unit, do not continue with operation.
Battery replacement
Get screws o ff
Get connection right –
RED for Anode;
BLACK for Cathode
Take battery out
10
80W (RMS) / 120W (MAX)
LCD readout, LED indicators
10 mW or 30 mW (country dependent)
< 250 nW
70 Hz - 16 kHz
50 ~ 70 M
Specifications
Output power
Speaker
8" woofer and 1" tweeter
Receiver modules
Audio inputs
DR-501A or DR-500, up to 2
Combo/6.3Φ-Mic in, 3.5Φ-Aux in, RCA-Line in, MIC/LINE Switch
3.5Φ-Aux OUT, RCA-Line out
Audio outputs
CD Player
264 x 301 x 511 (mm)
Power requirements
100~240 VAC switching power supply
Battery
12V, 4.5 Ah x 2 (Lead-Acid) rechargeable batteries)
Battery indicator
4 LEDs to indicate battery autonomy status
Operating life
4 ~ 6 hours
Charging time
Dimensions(D x W x H)
Weight
App
rox. 16kg (35lbs), batteries included
CD-800S+
Bluetooth Receiver
Effects
Built-in
ECHO / DELAY (GPA-828 only)
6 ~ 8 hours
Wireless UHF Receiver Module DR-501A/DR-500
Carrier frequency
Channels
Channels
LCD window
Channel adjustment
-10° C 50° C
80 kHz, with level limiting
70 Hz - 16 kHz
50 ~ 70 M
Sync
SCAN
DR-501A
514 〜 865 MHz (country dependant)
514 〜 865 MHz (country dependant)
16 〜 96 (frequency dependant)
16 〜 96 (frequency dependant)
Channel, Frequency
DR-500
Channel, Reception Strength
30 MHz (max.)
Receiver Module
Frequency modulation
Carrier frequency
LCD status
Controls
RF output
Spurious emission
Antenna
Built-in
Ambient temperature
Wireless coverage
Wireless coverage
Frequency response
Frequency response
Tone key and noise lock dual-squelch
set, up, down, volume
UHF Audiolink Transmitter Module TX-701-820
11
Environment
Please follow existing disposal regulations in your country. If you respect these
instructions you ensure human health and environmental protection.
Product mix & Illustrations ....................................................................................................... 1
Controls and Operation .......................................................................................................... 2
UHF ACS Receiver Module DR-501A ......................................................................................... 3
UHF Duo Receiver Module DR-500 ............
........................................................................... 4 ~ 5
CD Player CD-800S+ ........................................................................................................... 6 ~ 7
UHF Audiolink Transmitter TX-701-820 .................................................................................... 8
Important Maintenance Guideline ..................................................
......................................... 9
Specifications ...................................................................................................................... 10
Notice: The changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC INFORMATION
The Federal Communication Commission Radio Frequency Interference Statement includes the following paragraph:
-- Re ori ent or relocat e the receiving antenn a.
-- Incre ase t he se paration betwee n the e qui pme nt an d receiver.
-- Connect the equipment into a n out let on a circuit different fro m that to which the rec eiv er is connected.
-- Consult the dealer or an ex per ien ced radio/TV technician for he lp.
The equipment has been tested and found to comply with the limits for a Class B Digital Device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction,
may cause harmful interference to radio communication.
However, there is no grantee that interference will not occur in a particular installation. If this equipment dose cause harmful interference
to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
IMPORTANT NOTE: To comply with the FCC RF exp osu re compliance requireme
nts , no ch ang e to the antenna or the device is
permitted. Any change to th e antenna or the device could resu lt in t he de vic e exce edi ng th e RF ex pos ure requirem ents and
voi d use r's a uth ori ty to o perate th e dev ice .
Consumer Alert
Most use rs do not ne ed a li cen se to opera te this wireless micro pho ne system . Nevertheless, operati ng th is mi crophone system
without a license is subject to c ert ain restrictions: The system may not cause harmful inte rference; it must o perate at a l ow po wer
level (n ot in excess of 50 milliwatts); and it has no pro tec tio n from interference rec eiv ed from any o
ther device. Purcha sers should
also be aware that the FCC is currently evaluati ng us e of wi reless microphone sy stems, and these rules are su bje ct to c han ge. For
more information, ca ll th e FCC at 1–888–CALL–FCC (T TY: 1–8 88– TELL–FCC) o r vis it th e FCC 's wireless micro pho ne Web site a t
htt p://ww w.fcc.gov/cgb/wire les smi crophones.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
Features
Contents
120W power output (max).
Two-way speaker – 8” woofer and 1” tweeter – deliver great sound projection.
Supports max two UHF ACS receiver modules (DR-501A) or UHF Duo receiver modules (DR-500)
allows 4 wireless microphones to operate concurrently.
Integrated Bluetooth function for audio streaming from smartphone and tablet.
Built-in Echo sound effect & delay applied on wireless mics and audio inputs (GPA-828 ONLY).
Various audio player modules for option – MP3, CD, DVD, pitch control or recording – at users' choice.
Voice priority allows a reduced music volume when a microphone is used.
4-segment battery meter for charging and power status reading.
Two power models – AC or Battery powered.
Runs 4-6 hours on a charge (built-in battery charger).
Retractable handle and PU wheels allows users to move without difficult
y.
Important notes
Hearing excellence since 1965
(Univox) Bo Edin AB
Stockby Hantverksby 3,
SE-181 75 Lidingö, Sweden
+46 (0)8 767 18 18
info@edin.se
www.univox.eu
gpa-820-d1-du-gb 180502 Copyright © Bo Edin AB
This User Guide has been edited by Bo Edin AB.
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