PWR
AF
A DIVERSITY B
GO series microphones - Lavalier, headband or handheld UHF systems
9988 / 9989 / 9990 / 9991 / 9992 / 9374 - Version 1 / 12-2012
USER GUIDE
English
GO series microphones - Lavalier, headband or handheld UHF systems
Page 2
GO series microphones - Lavalier, headband or handheld UHF systems
1 - Safety information
Important safety information
English
This unit is intended for indoor use only. Do not use it in a wet,
or extremely cold/hot locations. Failure to follow these safety instructions could result in fire, electric shock, injury, or damage to
this product or other property.
Any maintenance procedure must be performed by a CONTEST
authorised technical service. Basic cleaning operations must thoroughly follow our safety instructions.
This product contains non-isolated electrical components. Do not
undertake any maintenance operation when it is switched on as
it may result in electric shock.
WARNING : This unit contains no user-serviceable parts. Do not open the
housing or attempt any maintenance by yourself. In the unlikely even your unit
may require service, please contact your nearest dealer.
In order to avoid any electrical malfunction, please do not use any multi-socket,
power cord extension or connecting system without making sure they are
perfectly isolated and present no defect.
Risk of electrocution
To prevent the hazard of electric shocks, do not use
extension cords, multi-socket or any other connection
system without making sure metal parts completely are
out of reach.
Recycling your device
• As HITMUSIC is really involved in the environmental cause, we only commercialise clean, ROHS compliant products.
• When this product reaches its end of life, take it to a collection point designated by local authorities. The separate collection and recycling of your
product at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the
environment.
Sound levels
Our audio solutions deliver important sound
pressure levels (SPL) that can be harmful
to human health when exposed during long
periods. Please do not stay in close proximity
of operating speakers.
Symbols used
This symbol signals an important safety
precaution.
The WARNING symbol signals a risk to the user’s physical integrity.
The product may also be damaged.
The CAUTION symbol signals a risk of product deterioration.
Page 3
English
Instructions and recommendations
GO series microphones - Lavalier, headband or handheld UHF systems
1 - Please read carefully :
We strongly recommend to read carefully and understand
the safety instructions before attempting to operate this unit.
2 - Please keep this manual :
We strongly recommend to keep this manual with the unit for
future reference.
3 - Operate carefully this product :
We strongly recommend to take into consideration every
safety instruction.
4 - Follow the instructions:
Please carefully follow each safety instruction to avoid any
physical harm or property damage.
5 - Avoid water and wet locations :
Do not use this product in rain, or near washbasins or other
wet locations.
6 - Installation :
vibration and slipping while operating as it may result in
physical injury.
7 - Ceiling or wall installation :
Please contact your local dealer before attempting any ceiling
or wall installation.
8 - Ventilation :
operated in a closed non-ventilated area such as a flight case
or a rack, unless cooling vents are provided for the purpose .
9 - Heat exposure :
Sustained contact or proximity with warm surfaces may cause
overheating and product damages. Please keep this product
away from any heat source such as a heaters, amplifiers, hot
plates, etc...
10 - Electric power supply :
This product can only be operated according to a very specific
voltage. These information are specified on the label located
at the rear of the product.
11 - Power cords protection:
Power-supply cords should be routed so that they are not
We strongly encourage you to only use a
fixation system or support recommended by
the manufacturer or supplied with this product.
Carefully follow the installation instructions and
use the adequate tools.
Always ensure this unit is firmly fixed to avoid
The cooling vents ensure a safe use of this product,
and avoid any overheating risk.
Do not obstruct or cover these vents as it may
result in overheating and potential physical injury or
product damage. This product should never been
likely to be walked on or pinched by items placed
upon or against them, paying particular attention
to cords at lugs, convenience receptacles and the
point where they exit from the fixture.
12 - Cleaning precautions :
13 - Long periods of non use :
Disconnect the unit’s main power during long periods of
non use.
14 - Liquids or objects penetration :
Do not let any object penetrate this product as it may result
in electric shock or fire.
Never spill any liquid on this product as it may infiltrate the
electronic components and result in electric shock or fire.
15 - This product should be serviced when :
16 - Inspection/maintenance :
17 - Operating environment :
Unplug the product before attempting any cleaning
operation. This product should be cleaned only with
accessories recommended by the manufacturer.
Use a damp cloth to clean the surface. Do not
wash this product.
Please contact the qualified service personnel if :
- The power cord or the plug has been damaged.
- Objects have fallen or liquid has been spilled into
the appliance.
- The appliance has been exposed to rain or water.
- The product does not appear to operate normally.
- The product has been damaged.
Please do not attempt any inspection or
maintenance by yourself. Refer all servicing to
qualified personnel.
Ambient temperature and humidity: +5 - +35°C,
relative humidity must be less than 85% (when
cooling vents are not obstructed).
Do not operate this product in a non-ventilated,
very humid or warm place.
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GO series microphones - Lavalier, headband or handheld UHF systems
English
2 - Presentation of the GO series
UHF system with 16 frequencies and up to 4 microphones simultaneously, depending on the configuration
and the conditions of your performance.
This user guide will provide useful information and details about the whole GO series and its components.
2.1 - GoMono code 9988
Receiver box
- Carrier frequency: UHF 863 ~ 865MHz.
- 16 preset UHF frequencies to easily select a
frequency and use several systems simultaneously.
- The diversity technology and adjustable squelch
guarantee high-quality transmissions, without
parasitic noises.
AF
PWR
A DIVERSITY B
123 44
AUDIO OUTPUT
UNBALANCED
BALANCED
LINE MIC
CHANNEL
5
1
13
SQ
9
56789 10
- The AF indicator indicates the audio signal
status.
- The output level is adjusted to avoid any signal
saturation.
- The antennas are located at the front so you can
easily put it into racks.
- The outgoing signal is available with the balanced
XLR chassis or the unbalanced Jack 6.35 chassis
to fit your needs.
- Compliant with the FCC, CE and RoHS norms.
[1] Antenna
[2] Power LED
[3] Audio signal LED
[4] Channels A and B LEDs
DC INPUT
12V 500mA
[5] Balanced XLR output
[6] Unbalanced Jack 6.35 output
[7] Output selector
[8] Channel selector
[9] Squelch knob
[10] DC Input
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English
2.2 - GOHand code 9989
Handheld microphone
GO series microphones - Lavalier, headband or handheld UHF systems
1
5
CHANNEL
5
9
1
13
2
4
6
7
3
[1] Protection grille.
[2] Battery level LED indicator. This LED lights up
when the microphone is activated, flashes when
the battery level is too low, and do not light up if
the batteries are empty or not properly installed.
[3] ON/OFF button: Press and hold for 2 seconds to
activate/deactivate the microphone.
[4] Battery compartment.
Note : Turning the microphone off when the receiver is still activated might create audible noise interference.
2.3 - GOBody code 9990
Bodypack transmitter with mini-XLR input
[5] Channel selector: Allows you to choose the
transmission channel, depending on the channel
used by the receiver.
[6] Battery compartment panel.
[7] Helical antenna compartment.
4
Page 6
3 1 2
CHANNEL
1
7
5
9
13
5
8
6
GO series microphones - Lavalier, headband or handheld UHF systems
English
[1] ON/OFF button: Press and hold for 2 seconds to
activate/deactivate the transmitter.
[2] Male mini-XLR socket
[3] Battery level LED indicator. This LED lights up
when the microphone is activated, flashes when
the battery level is too low, and do not light up if
the batteries are empty or not properly installed
[4] Antenna
[5] Channel selector. Allows you to choose the
transmission channel, depending on the channel
used by the receiver.
2.4 - GOLava code 9992
Lavalier microphone with condenser cell
1
2
3
[6] Gain control knob.
[7] Output selector. Allows you to connect either an
electret microphone or a line level device (such
as CD players).
[8] Battery compartment.
[1] Condenser microphone
[2] Tie clip
[3] Female mini-XLR socket
2.5 - GOHead code 9991
Headband condenser microphone
[1] Adjustable metal headband
[2] Condenser microphone with windshield
[3] Female mini-XLR socket
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English
GO series microphones - Lavalier, headband or handheld UHF systems
3 - Installation
3.1 - Connecting the receiver
AUDIO OUTPUT
UNBALANCED
BALANCED
AUDIO OUTPUT
UNBALANCED
LINE MIC
BALANCED
BALANCED OR
UNBALANCED CABLE
MIXING DESK
AMPLIFIER SPEAKER
LINE MIC
CHANNEL
5
1
13
DC INPUT
CHANNEL
5
1
13
9
12V 500mA
SQ
- Connect the supplied AC adapter to
an electrical outlet, and to the DC
12V socket located at the rear of the
AC/DC
ADAPTER
DC INPUT
12V 500mA
SQ
9
AC ADAPTER
GOMono receiver.
- Connect the audio output to your
mixing desk with either a balanced
XLR cable or unbalanced Jack 6.35.
- Do not use both the unbalanced and
balanced outputs simultaneously
as it might cause signal losses and
increases parasitic noises.
- In order to preserve a good sound
quality and prevent distortions, you
can adjust the volume by following the
instructions below:
- If you are using a microphone input of
your mixing desk or amplifier, turn the
volume to half power (approximately),
the balanced and unbalanced outputs
level will then be close to 77 mV.
- If you are using a line level input of
your mixing desk or amplifier, turn the
volume to 3/4 of the maximum power,
the unbalanced and balanced outputs
will then be close to 770 mV.
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AUDIO OUTPUT
BALANCED
UNBALANCED
LINE MIC
CHANNEL
5
1
13
LINE MIC
- Adjust the output level to the input
level used by the mixing desk.
DC INPUT
12V 500mA
SQ
9
- MIC level: - 20dBm
- LINE level: 0 dB
GO series microphones - Lavalier, headband or handheld UHF systems
3.2 - Commissioning GOBody et GOHand transmitter
- Open the battery compartment and
insert two LR6 or AA batteries. Please
respect the polarity as described
opposite.
- Unscrew the battery compartment
panel and insert two LR6 or AA
batteries. Please respect the polarity
as described opposite.
English
- Connect the mini XLR plug of your
microphone to the input of the
transmitter box.
- Press and hold the Power button for 2
seconds to activate the device.
Note : During long periods of non-use, please turn off the microphone and transmitter and remove the
batteries.
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English
GO series microphones - Lavalier, headband or handheld UHF systems
3.3 - Battery charge level indicator
3.4 - Using the output selector
- This LED flashes to indicate the
batteries are almost empty and need
to be replaced or charged.
- Use the MIC/LINE located at the rear
of the transmitter box to adjust its
input level.
- Place it on MIC if you are using a
condenser microphone such as a
GOLava or GOHead.
- Place it on LINE if you want to
connect a line level device such as CD
players.
3.5 - Using the 19" coupler (optional: Code 9374)
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- Acquiring two GOMono allows you to
couple them into a 19" rack.
- Each receiver is supplied with screws.
- The optional coupler allows you to
bind two receivers together.
GO series microphones - Lavalier, headband or handheld UHF systems
English
3.6 - Configuring channels
Use the faders located on your transmitter and receiver to select the carrier frequency of your
UHF system.
Your transmitter and receiver must be set on the same channel.
In order to use several mic simultaneously, choose frequencies as far apart as possible.
For instance:
For mic no. 1 on channel 1 (863.125 MHz)
For mic no. 2 on channel 3 (863.625 MHz)
For mic no. 3 on channel 4 (864 MHz)
For mic no. 4 on channel 6 (864.500 MHz)
This frequency range allows the use of 4 microphone simultaneously, at full volume, in the best
environment possible.
However, the signal reception depends on surrounding disturbances that might impact on the
performances.
3.7 - Available frequencies
Frequency 1 : 863.125 MHz
Frequency 2 : 863.375 MHz
Frequency 3 : 863.625 MHz
Frequency 4 : 864 MHz
Frequency 5 : 864.250 MHz
Frequency 6 : 864.500 MHz
Frequency 7 : 864.750 MHz
Frequency 8 : 864.875 MHz
Frequency 9 : 863.250 MHz
Frequency 10 : 863.500 MHz
Frequency 11 : 863.750 MHz
Frequency 12 : 863.875 MHz
Frequency 13 : 864.125 MHz
Frequency 14 : 864.375 MHz
Frequency 15 : 864.625 MHz
Frequency 16 : 865 MHz
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English
GO series microphones - Lavalier, headband or handheld UHF systems
4 - Troubleshooting
No sound:
- Check on the power supply units.
- Check on the frequency channels - It must be the same channel on both the transmitter and
receiver.
- Check on the connectors between the receiver and the amplification system.
- Check on the transmitter/receiver distance and Squelch settings.
- Make sure the receiver is not hidden by a metallic surface.
- Check on the batteries.
Poor sound quality or interference:
- Check on the position of the antennas.
- Make sure each transmitter is on a different frequency.
- Make sure interferences are not caused by other devices such as televisions, radios, etc.
- Check on the volume of the receiver.
- Check on the batteries.
- Adjust the input gain of your mixing desk channel.
Avoid high gain levels on your mixing desk or high volume on your receiver.
The feedback may cause severe damage to your hearing and sound system.
Maintain a reasonable distance from the speakers.
Watch out for audio feedbacks
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GO series microphones - Lavalier, headband or handheld UHF systems
4 - Technical specifications
GOMono receiver
• Carrier frequency: UHF 863 ~ 865 MHz
• Housing: Compact
• Oscillator: PLL synthesiser
• Reception: Diversity Mono channel
• Frequency stability: ±0.005%
• Reception sensitivity: at 10 µV beyond 80dB S/N ratio
• Minimum rejection rate: 80 dB
• Selectivity : higher than 50 dB
• Modulation: FM
• Dynamic range: >100dB
• Tone Signal: 32.768KHz
• Signal to noise ratio: higher than 94dB, at 20KHz deviation and 60dBuV antenna input
level
• Frequency response: 80HZ at 16KHz
• Distortion rate: lower than 1% (@ 1KHz)
• Frequency settings: via faders
• Power supply: DC 12V
• Audio output: Balanced and unbalanced
• Power consumption: 130 mA max.
• Dimensions L x H x D : 170 x 32 x 106 mm
English
GOHand microphone
• Carrier frequency: UHF : 863 ~ 865 MHz
• Maximum output level: 10 mW
• Oscillator : PLL synthesiser with 16 selectable channels
• Type: Handheld microphone
• Frequency stability: ± 0.005%
• Max deviation: ± 20KHz
• Distortion rate: lower than 1.0% (@ 1KHz)
• Unwanted emissions: lower than 60 dB below the carrier frequency
• Power supply:
- 3V DC (2 x 1.5V AA batteries)
- 2.4V DC (2 x1.2V AA rechargeable batteries)
• Tone Key: 32,768KHz
• Unidirectional condenser microphone
• Consommation : 120mA ± 10mA
• Dimensions (L x D) : 237 x 58 mm
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English
GO series microphones - Lavalier, headband or handheld UHF systems
GOBody transmitter
• Frequency range : UHF 863 ~ 865 MHz
• Maximum output level: 10mW (max.)
• Oscillator: PLL synthesiser
• Frequency stability: ± 0,005%
• Maximum deviation: ±20KHz
• Unwanted emissions: higher than 60 dB below the carrier frequency
• T.H.D. : <1% (@1KHz)
• Batteries
- 3V DC (2 x 1.5V AA batteries)
- 2.4V DC (2 x 1.2V AA rechargeable batteries)
• Tone Key: 32,768KHz
• Frequency settings: via faders
• Power consumption: 120mA ± 10mA
• Dimensions: 65 x 100 x 27 mm
GOHead microphone
• Type: Condenser capsule
• Sensitivity: -67 ±3dB
• Impedance: 2.2 K Ohms
• Directivity: Cardioid unidirectional
• Frequency response: 100Hz - 16KHz
• Maximum operating voltage: 10V
• Normal voltage range: 1.5V
• Power consumption: 0,5mA max.
• Signal to noise ratio: Higher than 60dB
• Supplied accessory: Windshield
• Connector: Mini XLR
GOLava microphone
• Type: Condenser cell
• Sensitivity: -67 ±3dB
• Impedance: 2.2 k Ohms
• Directivity: Cardioid unidirectional
• Frequency response: 100Hz - 16KHz
• Maximum operating voltage: 10V
• Normal voltage range: 1.5V
• Power consumption: 0,5mA max.
• Signal to noise ratio: Higher than 60dB
• Supplied accessories: Windshield and tie-clip
• Connector: Mini XLR
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GO series microphones - Lavalier, headband or handheld UHF systems
EC DECLARATION OF CONFORMITY
We, HIT-MUSIC SA,
Adress: Parc d’Activités du Sycala – 46091 CAHORS Cedex 09 – France
Declare under our sole responsibility that the Audiophony UHF wireless transmitter and
receiver microphones:
GO-Mono (9988) / GO-Hand (9989) / GO-Body (9990)
Are in conformity with the Council Directives:
- 2011/65/UE ROHS
- 1999/5/EC R&TTE
- 2006/95/EC WEEE
And are in conformity with the following standards or normative documents :
- EN 300 422-2 V1.2.2 (2008-03)
- EN 301 489-1 V1.8.1 (2008-04)
- EN 301 489-9 V1.4.1 (2007-11)
- EN 60065 :2002+A1 : 2006 + A11 :2008+A2 :2010
Additional information: None
At Cahors, 11th of December, 2012
English
www.audiophony.com
Page 15
Because AUDIOPHONY® takes the utmost care in its products to make sure you only get the best possible quality, our products are
subjects to modifications without prior notice. That is why technical specifications and the products physical configuration might differ
from the illustrations.
Make sure you get the latest news and updates about the AUDIOPHONY® products on www.audiophony.com
AUDIOPHONY® is a trademark of HITMUSIC S.A. - Zone Cahors sud - 46230 FONTANES - FRANCE
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