Xvive U4 User manual

IN-EAR MONITOR
WIRELESS SYSTEM
Manual

02
This Class B digital apparatus complies with Canadian
ICES-003.
IC Caution: RSS-Gen Issue 4 December 2014"&"CNR-Gen
4e Décembre 2014:
This device complies with Industry Canada licence-
exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) This device may not cause interference, and
(2)
This device must accept any interference, including
interference
that may cause undesired operation
of the device.
CERTIFICATION
Radio Approvals:
FCC Part 15.249, FCC Part 15 B, RSS-210 (Canada), EN 300
440 (Europe), EN 301.489 (Europe), Japan Radio 2.4 GHz
Band (Japan), MIC ARIB STD-T66 (Japan), California 65, CE.

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
CAUSEUNDESIRED OPERATION.
Warning: Changes or modications not expressly approved
in writing by Xvive may void the users authority to operate
this equipment.
RF Exposure Statement: This transmitter must not be
co-located or operated in conjunction with any other
antennae or transmitter.
Note: This 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 instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment o
and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and the receiver.
• Connect the equipment into an outlet on a circuit
dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV
technician for help.
This Class B digital apparatus complies with Canadian
ICES-003.
03
CERTIFICATION

04
Hereby, SHENZHEN FZONE TECHNOLOGY CO., LTD,
declares that this type of equipment is in compliance
with the essential requirements and other relevant
provisions of Directive 2014/53/EU
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SAFETY INSTRUCTIONS FOR
LITHIUM-ION
RECHARGEABLE BATTERIES
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT REMOVE SCREWS.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THE APPLIANCE TO RAIN OR MOISTURE.
If abused or misused, the rechargeable batteries may
leak. In extreme cases, they may even present a risk of
explosion, re, heat, smoke or gas. Xvive does not accept
any liability for damagearising from abuse or misuse.
• Keep away from children.
• Only charge rechargeable batteries with chargers
recommended by Xvive.
• Observe correct polarity.
• Pack/store charged rechargeable batteries so that the
terminals cannot contact each other
(danger of shorting out/re hazard).
• Do not expose to moisture.
• Switch rechargeable battery-powered products o
after use.
• Only charge rechargeable batteries at ambient
temperatures between 10°C/50°F and 40°C/104°F.
• When not using rechargeable batteries for extended
periods of time, charge them regularly
(about every three months).
• Do not mutilate or dismantle.

05
INFORMATION ABOUT COLLECTION
AND DISPOSAL OF OLD ITEMS
AND USED BATTERIES
Cd
These symbols on the products, packaging, or on any
documents in the package mean it is incorrect to mix the
used electrical and electronic products and batteries with
general household garbage.
• Do not heat above 60°C/140°F, e.g. do not expose to
sunlight or throw into a re.
• Immediately remove rechargeable batteries from obviously
defective products.
• Do not continue to use defective rechargeable batteries.
• Only use rechargeable batteries specied by Xvive.
• Dispose of rechargeable batteries at special collection
points or return them to your specialist dealer.
• Store the products in a cool and dry place at room
temperature (approx. 20°C/68°F).
• Remove the rechargeable batteries if the products will
not be used for extended periods of time.
To protect our environment, please take old products
and used batteries to proper collection places, and
follow your national legislation and the Directives
2012/19/EU and 2006/66/EC.
To deal with these old products and batteries
properly,
please help to save valuable resources
and prevent any
possibility of side eects on human health and our
environment due to the inappropriate disposal of the old
products and used batteries.
You can contact your local authority for getting more
helpful information on how to dispose the recycling and
collection of the old products and batteries.
[For business users in the European Union]
If you want to discard electrical and electronic item, please
contact your dealer or supplier for further information.
[Information on Disposal in other Countries outside
the European Union]
These symbols are only valid in the European Union.
Please contact your local authorities or dealer for more
information on disposal of old items and used batteries.

1. Carefully observe all instructions in the U4 manual.
2. Do not to perform service operations beyond those
described in the U4 Manual. Service is required when
the device was damaged in any way, such as:
• liquid was spilled or objects were dropped into
the device,
• the unit was exposed to rain or moisture,
• the unit does not operate normally or signicant
changes in performance occur,
• the unit is dropped or the housing is damaged.
WARNING: BEFORE USING YOUR XVIVE 2.4 GHz WIRELESS INEAR MONITOR SYSTEM,
CAREFULLY READ THE OPERATING INSTRUCTIONS.
IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ THESE INSTRUCTIONS AND KEEP THEM IN A SAFE PLACE
3. Do not place near heat sources, such as radiators,
heating ducts, or appliances which produce heat.
4. Guard the device against objects or liquids entering
the device. Do not use or store the unit close to water.
5. Clean only with a damp cloth.
6. Only use attachments/accessories specied by
the manufacturer.
7. Prolonged listening at high volume levels may cause
irreparable hearing loss and/or damage. Always be
sure to practice “safe listening.”
07
06

LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN
CAUSE PERMANENT HEARING DAMAGE. USE AS LOW
A VOLUME AS POSSIBLE.
Overexposure to excessive sound levels can damage
your ears, resulting in permanent noise-induced hearing
loss. Do not use earphones for a long time and set the
volume below 70%.
The U4 personal wireless monitoring system provides
high-delity sound reproduction for performers onstage,
in the studio and in rehearsal. This is a portable wireless
system with nothing to set up. Just plug-and-play to
immediately enjoy your monitoring system!
FEATURES:
• 2.4 Ghz wireless in-ear monitoring system
•Solid RF connection over a range of up to 27 m / 90 feet
(actual range depends on RF signal absorption,
reection and interference)
• Up to 107 dB signal-to-Noise ratio 110 dB for clear and
detailed audio at any volume
• High resolution audio at 24 bit / 48 kHz
• Wide frequency response range 20 Hz – 20 kHz
• Dynamic range 107 dB
• Less than 5 ms latency, simultaneous transmission
on 6 channels
• 5 hours of battery life
(rechargeable battery for both Transmitter & Receiver)
•Smooth frequency response with any kind of headphones
• Balanced mono XLR or unbalanced mono TS input
U4 SET PRODUCT INTRODUCTION
PACKAGE DETAILS
WARNING
1x
1x
1x
1x
1x
1x
U4 Transmitter
U4 Receiver
USB Cable
XLR Male to 1/4" TS Male Adapter
Manual
Bag
07

2
3
4 5
1
7
8
9
6
10
1 Input: balanced XLR input jack
2 Spring: circumferential spring provides ground
connection to metal housing parts
3 Lock: secures transmitter
4 Aux/Line mode: select AUX or line level mode
5 Power switch: switches unit on/o
6 Channel status LED: indicates selected channel
7 Channel switch: selects channels 1-6
8 USB charging port
9 Power status LED, indicates power status:
LED o = 100% ~ 30%
Solid red = 29% ~ 11%
Blinking red = less than 10%
10 Antenna
BASIC OPERATION
U4 TRANSMITTER
08

21
5
4
6
7
8
1 Power switch: switches unit on/o
2 Headphone Output: 3.5mm output
Connect to earphones or headphones
3 Channel status LED: indicates selected channel
4 Channel switch: selects Channels 1-6
5 Volume control: adjust the volume of headphone output
6 RF Status LED:
ON = Transmitter is on and link is established
Flashing = Signal connection interference
OFF = Transmitter o or unlinked
7 Power status LED, indicates power status:
Led o = 100% ~ 30%
Solid red = 29% ~ 11%
Blinking red = less than 10%
8 USB charging port
9 Antenna
BASIC OPERATION
U4 RECEIVER
9
3
09

QUICK START
POWER ON
Turn the power switch to the ‘on’ position:
the channel indicator will light up.
POWER ON
POWER ON
ON
OFF
BATTERIES AND CHARGING
Connect to
the socket
The U4 includes a USB charging cable, which you can connect
to a USB charger adapter or other USB charging device.
Note: Turn o the power switch while charging. Please do
not use the U4 while charging—this may reduce battery life.
Always store the U4 at
room temperature
When storing the unit,
please check the
battery state regularly
and charge if necessary.
15 minutes
30 minutes
1 hour
2.5 hour
30 minutes
1 hour
2 hours
5 hours
CHARGING TIMES BATTERY LIFE
Connect
Power
OR
10
QUICK START

PAIR TRANSMITTER AND RECEIVER
The U4 has six channels.
Use the channel switch button to switch
the channel. Set receiver and transmitter
to the same channel. The blue LED on the
receiver will be lit solidly when when the
connection was established successfully.
MAX. 6 CHANNELS
1
4
3
2
5
6
SINGLE TRANSMITTER AND
MULTIPLE RECEIVERS
If you want to add more receivers,
just set all the receivers to the same
channel as the transmitter.
11
CHANNEL SWITCH
CHANNEL SWITCH

Adjusting Gain and Listening Volume:
For the best audio quality, start by adjusting
the levels from the mixer or audio source to
optimize the signal-to-noise ratio.
Aux (-10 dBV)
Use with mixers or other
professional audio devices
that send line-level signals.
Use when connecting
consumer audio devices
such as portable audio
players or computers.
Line (+4 dBu)
ADJUST TRANSMITTER LEVELS
QUICK START
VOLUME ADJUSTMENT
Please do not adjust
the volume to more
than 70%.
VOLUME
SWITCH
<70%
LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN CAUSE
PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME
AS POSSIBLE.
12
QUICK START

CREATING A MONITOR MIX WITH AUX
1. Connect the Transmitter to the Aux Send on
the mixer that you want to use.
2. Turn on the Receiver and gradually turn up the
volume until you reach the desired level.
3. Set up your mix: adjust the levels of each channel’s
send to the Aux output you’re connected to,
and the Aux channel’s master output level.
Note: The channel faders on most mixers do not
aect the volume of the Aux sends.
13
OPERATION

CREATING MONITOR MIXES WITH XLR
1. Connect the Transmitter to the Mixer’s main output or
other XLR output.
2. Turn on the Receiver and gradually turn up the volume
until you reach the desired level.
3. Set up your mix: adjust the fader levels of each channel
as desired, as well as the master output level.
MIAN OUTPUT
14
OPERATION

MULTIPLE TRANSMITTERS
AND MULTIPLE RECEIVERS
When performers have dierent
monitoring needs, they can use
multiple transmitters: one for each
aux output. Each receiver simply
needs to be set to the same channel
as the transmitter connected to
the desired aux output.
If all performers are connected
through the U4 monitoring system,
no PA speakers or wedge monitors
need to be used!
CHANNEL 1
CHANNEL 2
15
OPERATION

Tips and Methods to Improve Wireless System Performance
1) Keep more than 3 metres of distance between the U4
receiver unit and Wi-Fi transmitters, such as routers.
2) If you experience interference from Wi-Fi devices in the
vicinity, try changing to a dierent channel on the U4
transmitter and receiver.
3) If necessary, shorten the distance between the
transmitter and receiver units.
2402 MHz, 2480 MHz, 2482 MHz
2408 MHz, 2472 MHz, 2474 MHz
2416 MHz, 2464 MHz, 2466 MHz
2434 MHz, 2440 MHz, 2442 MHz
2427 MHz, 2448 MHz, 2450 MHz
2422 MHz, 2456 MHz, 2458 MHz
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
CHANNEL 5
CHANNEL 6
2.4 Ghz Frequency Tables
U4 operates on the 2.4 GHz ISM band, which is also used
by Wi-Fi, Bluetooth, and other wireless devices. 2.4 GHz is
an open band and, as such, does not require a license to
be used worldwide.
U2 channels 1-4 use the same frequencies as U3/U3C/U4
channels 1-4. A maximum of six U2/U3/U3C and U4 sets
can be used at the same time.
2.4 GHz WIRELESS OVERVIEW AND INTERFERENCE
16

ISSUE SOLUTION
No sound
Distorted audio
Low audio output at the receiver
Signal instability: RF LED ickering
Unable to switch the channel
Multiple connect
• Check that the U4 Receiver's RF LED is lit.
• Check whether the device has a signal sent to the Transmitter
• Check that the power switch is turned on for both the Transmitter and
the Receiver.
• Ensure that the U4 Transmitter and Receiver are on the same channel.
• The Receiver can only be paired with one Transmitter at a time.
• Check the Line/Aux setting on the transmitter and verify that the
meter is not overloading.
• Check the levels going in and out of the mixer.
Verify that no distortion occurs in each audio signal.
• Check receiver headphone output Volume level
• Check Transmitter mode (Line/Aux).
• Check whether the device is sending sucient signal level to the transmitter.
• See, “Tips and methods to improve wireless system performance”on page 16.
• The channel switch locks after 15 seconds. Double-click the channel button
to unlock and reset.
• Make sure the receivers are all set to the same channel as the transmitter you
want them to receive audio from.
TROUBLE SHOOTING
17

Tuning bandwidth
Working range
Audio frequency response
Dynamic range & signal-to-noise ratio
Battery life
RF sensitivity
Total harmonic distortion
RF output power
Operating temperature range
Channel count
Latency
High resolution audio
2400 – 2483.5 MHz
Up to 27 m / 90 feet. Actual range depends on RF signal
absorption, reection and interference.
20 Hz – 20 KHz (-3 dB)
107 dB
Up to 5 hours
-88 dBm
0.2%
10 mW E.I.R.P. max
-18℃to 57℃(Battery characteristics may limit this range.)
Up to 6
Less than 5 ms
24-bit/48 kHz
SPECIFICATIONS
U4 WIRELESS INEAR MONITOR SYSTEM
18

SPECIFICATIONS
Dimensions
Weight
Housing
Battery
Impedance
Audio input connector
Audio output connector
Mode
Battery life
Antenna impedance
Antenna type
Number of antennas
U4 TRANSMITTER U4 RECEIVER
30 X 28 X 100 mm
90 g
Molded plastic and cast metal
3.7 V rechargeable Li-ion, 860 mAh
Input 47 k（1 KHz）
Balanced XLR male input
Aux mode: -10 dBV | Max. +12.2 dBu
Line mode: +4 dBu | Max. +22 dBu
Up to 5 hours
50 
1/4 Wave sleeve dipole, non-removable
1
47 X 41 X 60 mm
118 g
Molded plastic and cast metal
3.7 V rechargeable Li-ion, 1200 mAh
6-600 
3.5 mm dual mono output
Up to 5 hours
50 
1/4 Wave sleeve dipole, non-removable
2
19

U4 standard set to create personal
monitoring system
U4R2 set to create a monitoring system for two
performers or use one receiver as backup
1 Transmitter 2 Receiver1 Transmitter 1 Receiver
U4 SET U4R2
U4 SERIES
20