Xvive U4 Wireless In-Ear Monitor System
Manual
Certifications and Approvals
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.
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 Class B digital apparatus complies with Canadian ICES-003.
FCC Compliance Statement: 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.
Warning: Changes or modifications not expressly approved in writing by Xvive may void the user's 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 off 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 different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Safety Instructions
General Warnings
CAUTION: RISK OF ELECTRIC SHOCK ⚡ DO NOT OPEN
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.
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.
Lithium-Ion Rechargeable Batteries
If abused or misused, the rechargeable batteries may leak. In extreme cases, they may even present a risk of explosion, fire, heat, smoke or gas. Xvive does not accept any liability for damage arising 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/fire hazard).
- Do not expose to moisture.
- Switch rechargeable battery-powered products off 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.
- Do not heat above 60°C/140°F, e.g. do not expose to sunlight or throw into a fire.
- Immediately remove rechargeable batteries from obviously defective products.
- Do not continue to use defective rechargeable batteries.
- Only use rechargeable batteries specified 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.
Information About Collection and Disposal of Old Items and Used Batteries
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.
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 effects 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.
Symbols: [Recycle Symbol] [Recycle Symbol] [Recycle Symbol] Cd
Important Safety Instructions
PLEASE READ THESE INSTRUCTIONS AND KEEP THEM IN A SAFE PLACE
WARNING: BEFORE USING YOUR XVIVE 2.4 GHz WIRELESS IN-EAR MONITOR SYSTEM, CAREFULLY READ THE OPERATING INSTRUCTIONS.
- Carefully observe all instructions in the U4 manual.
- Do not 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 significant changes in performance occur.
- The unit is dropped or the housing is damaged.
- Do not place near heat sources, such as radiators, heating ducts, or appliances which produce heat.
- Guard the device against objects or liquids entering the device. Do not use or store the unit close to water.
- Clean only with a damp cloth.
- Only use attachments/accessories specified by the manufacturer.
- Prolonged listening at high volume levels may cause irreparable hearing loss and/or damage. Always be sure to practice "safe listening."
U4 Set Product Introduction
WARNING: 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%.
Package Details
U4 Transmitter | 1x |
U4 Receiver | 1x |
USB Cable | 1x |
XLR Male to 1/4" TS Male Adapter | 1x |
Manual | 1x |
Bag | 1x |
The U4 personal wireless monitoring system provides high-fidelity 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, reflection 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
Basic Operation
U4 Transmitter
Diagram Description: The transmitter unit features several controls and indicators. Numbered callouts point to:
- 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/off.
- 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 off = 100% ~ 30%, Solid red = 29% ~ 11%, Blinking red = less than 10%).
- 10 Antenna
U4 Receiver
Diagram Description: The receiver unit features several controls and indicators. Numbered callouts point to:
- 1 Power switch: Switches unit on/off.
- 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: Indicates RF status (ON = Transmitter is on and link is established, Flashing = Signal connection interference, OFF = Transmitter off or unlinked).
- 7 Power status LED: Indicates power status (LED off = 100% ~ 30%, Solid red = 29% ~ 11%, Blinking red = less than 10%).
- 8 USB charging port
- 9 Antenna
Quick Start
Batteries and Charging
The U4 includes a USB charging cable, which you can connect to a USB charger adapter or other USB charging device.
Note: Turn off the power switch while charging. Please do not use the U4 while charging—this may reduce battery life.
Diagram Description: Illustrations show connecting the U4 to a power source via USB and the power switch. A table shows charging times versus battery life.
Charging Times | Battery Life |
---|---|
15 minutes | 30 minutes |
30 minutes | 1 hour |
1 hour | 2 hours |
2.5 hours | 5 hours |
Storage: Always store the U4 at room temperature. When storing the unit, please check the battery state regularly and charge if necessary.
Power On: Turn the power switch to the 'on' position; the channel indicator will light up.
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 the connection was established successfully.
Single Transmitter and Multiple Receivers
If you want to add more receivers, just set all the receivers to the same channel as the transmitter.
Diagram Description: Shows a single transmitter connected to multiple receivers, all set to the same channel.
Volume Adjustment
WARNING: LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME AS POSSIBLE.
Please do not adjust the volume to more than 70%.
Diagram Description: Illustration shows the receiver unit with headphones connected, with a volume knob and a warning indicator for volume levels.
Adjust Transmitter Levels
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.
Input Type | Description |
---|---|
Line (+4 dBu) | Use with mixers or other professional audio devices that send line-level signals. |
Aux (-10 dBV) | Use when connecting consumer audio devices such as portable audio players or computers. |
Operation
Creating a Monitor Mix with AUX
- Connect the Transmitter to the Aux Send on the mixer that you want to use.
- Turn on the Receiver and gradually turn up the volume until you reach the desired level.
- 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 affect the volume of the Aux sends.
Diagram Description: Shows a mixer with an AUX send connected to the transmitter, and multiple receivers connected to the transmitter.
Creating Monitor Mixes with XLR
- Connect the Transmitter to the Mixer's main output or other XLR output.
- Turn on the Receiver and gradually turn up the volume until you reach the desired level.
- Set up your mix: adjust the fader levels of each channel as desired, as well as the master output level.
Diagram Description: Shows a mixer with an XLR output connected to the transmitter, and multiple receivers connected to the transmitter.
Multiple Transmitters and Multiple Receivers
When performers have different 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!
Diagram Description: Illustrates a band setup where multiple transmitters are connected to a mixer's aux outputs, each feeding multiple receivers for individual performers.
2.4 GHz Wireless Overview and Interference
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.
Tips and Methods to Improve Wireless System Performance
- Keep more than 3 metres of distance between the U4 receiver unit and Wi-Fi transmitters, such as routers.
- If you experience interference from Wi-Fi devices in the vicinity, try changing to a different channel on the U4 transmitter and receiver.
- If necessary, shorten the distance between the transmitter and receiver units.
2.4 GHz Frequency Tables
Channel | Frequencies |
---|---|
CHANNEL 1 | 2402 MHz, 2480 MHz, 2482 MHz |
CHANNEL 2 | 2408 MHz, 2472 MHz, 2474 MHz |
CHANNEL 3 | 2416 MHz, 2464 MHz, 2466 MHz |
CHANNEL 4 | 2434 MHz, 2440 MHz, 2442 MHz |
CHANNEL 5 | 2427 MHz, 2448 MHz, 2450 MHz |
CHANNEL 6 | 2422 MHz, 2456 MHz, 2458 MHz |
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.
Troubleshooting
Issue | Solution |
---|---|
No sound |
|
Distorted audio |
|
Low audio output at the receiver |
|
Signal instability: RF LED flickering | See, "Tips and methods to improve wireless system performance" on page 16. |
Unable to switch the channel | The channel switch locks after 15 seconds. Double-click the channel button to unlock and reset. |
Multiple connect | Make sure the receivers are all set to the same channel as the transmitter you want them to receive audio from. |
Specifications
U4 Wireless In-Ear Monitor System
Tuning bandwidth | 2400 – 2483.5 MHz |
Working range | Up to 27 m / 90 feet. Actual range depends on RF signal absorption, reflection and interference. |
Audio frequency response | 20 Hz – 20 KHz (-3 dB) |
Dynamic range & signal-to-noise ratio | 107 dB |
Battery life | Up to 5 hours |
RF sensitivity | -88 dBm |
Total harmonic distortion | 0.2% |
RF output power | 10 mW E.I.R.P. max |
Operating temperature range | -18°C to 57°C (Battery characteristics may limit this range.) |
Channel count | Up to 6 |
Latency | Less than 5 ms |
High resolution audio | 24-bit/48 kHz |
U4 Transmitter
Dimensions | 30 X 28 X 100 mm |
Weight | 90 g |
Housing | Molded plastic and cast metal |
Battery | 3.7 V rechargeable Li-ion, 860 mAh |
Impedance | Input 47 kΩ (1 KHz) |
Audio input connector | Balanced XLR male input |
Audio output connector | N/A |
Mode | Aux mode: -10 dBV | Max. +12.2 dBu Line mode: +4 dBu | Max. +22 dBu |
Battery life | Up to 5 hours |
Antenna impedance | 50 Ω |
Antenna type | 1/4 Wave sleeve dipole, non-removable |
Number of antennas | 1 |
U4 Receiver
Dimensions | 47 X 41 X 60 mm |
Weight | 118 g |
Housing | Molded plastic and cast metal |
Battery | 3.7 V rechargeable Li-ion, 1200 mAh |
Impedance | 6-600 Ω |
Audio input connector | N/A |
Audio output connector | 3.5 mm dual mono output |
Mode | N/A |
Battery life | Up to 5 hours |
Antenna impedance | 50 Ω |
Antenna type | 1/4 Wave sleeve dipole, non-removable |
Number of antennas | 2 |
U4 Series
U4 Set
1 Transmitter + 1 Receiver
U4 standard set to create personal monitoring system.
Diagram Description: Shows one transmitter and one receiver unit.
U4R2
1 Transmitter + 2 Receiver
U4R2 set to create a monitoring system for two performers or use one receiver as backup.
Diagram Description: Shows one transmitter and two receiver units.
U4R4
1 Transmitter + 4 Receiver
U4R4 set to create a monitoring system for four performers or a "private" rehearsal system.
Diagram Description: Shows one transmitter and four receiver units.
U4T
1 Transmitter
Transmitter only; you need to purchase receivers separately.
Diagram Description: Shows a single transmitter unit.
U4R
1 RECEIVER
Receiver only; you need to purchase transmitter separately.
Diagram Description: Shows a single receiver unit.
Manufacturer Information
SHENZHEN FZONE TECHNOLOGY CO., LTD.
2nd floor, Building 12, Xicheng Industrial Area, Xixiang Town, Baoan District, Shenzhen Guangdong China. 518101
E-mail: support@xvive.com
Website: www.xvive.com
PATENT PENDING
Note: The manufacturer reserves the right to change these specifications without notice.