LD Systems U500 In-Ear Monitoring System

With clear audio, reliable signal quality, and 10 hours of battery life, the U500 wireless in-ear system is great for performers and permanent installations.

Move freely on stage while the perfect monitor mix is delivered directly to your ears: the amazing performance and reliability of the U500 In-Ear Monitoring Systems will surpass your expectations for certain. Designed with the pro user in mind, they feature advanced technology, contemporary looks and straightforward operation.

Check out LD Systems' 1-minute overview of the U500 IEM system:

U500 In-Ear Systems provide a selection of 96 channels and 2, 10 or 30 mW RF output power for a transmission range greater than 100 m. For quick and trouble-free setup, they allow for convenient infrared synchronisation of transmitter and receiver. U500 In-Ears sport high-contrast OLED displays and allow for individual user name assignment. In addition, you can save 10 custom presets.

To deliver pristine, precise audio U500 In-Ear Monitoring Systems include a 3-band EQ with parametric mids, a switchable limiter and a squelch circuit. They offer a choice of stereo or mono operation and a direct monitoring headphone output at the transmitter. With a signal-to-noise ratio greater than 95 dB and less than 0,3% THD, the U500 In-Ear's noise floor is exceptionally low.

Drawing little current only, the U500 Bodypack Receiver operates up to 10 hours on two AA batteries. A volume control allows convenient in-performance monitoring level adjustment. Three selectable squelch levels ensure optimum performance at all times.

U500 In-Ear Monitoring Systems are available for operation in five frequency read more ranges. The 470 - 490 MHz, 514 - 542 MHz, 584 - 608 MHz and 655 - 679 MHz bands permit running up to 12 systems simultaneously. In the 823 - 832 MHz + 863 - 865 MHz range six systems can be operated at the same time providing wireless monitoring for your entire band.


- Reliable in-ear monitoring with more than 100 m range
- 96 available channels
- 2, 10 or 30 mW ERP selectable transmission power
- Convenient infrared frequency syncing
- Individual user name assignment and memory for 10 custom presets
- Extended frequency response
- 3-band EQ with parametric mids
- Switchable limiter
- Stereo, focus and mono modes of operation
- High-contrast OLED display
- Transmitter with direct monitoring headphone output
- Bodypack receiver with three selectable squelch levels
- 10 h of bodypack receiver operation on two AA batteries
- Simultaneous operation of up to 12 systems
- U500 IEM transmitter compatible with U300 IEM bodypacks

Note: Earphones not included.
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-Product type: In-ear Monitoring
-Type: Set
-Weight: 0,755 kg
-LDU5047IEMT - LD Systems U504.7 IEM Transmitter:
-Product type: In-ear Monitoring Accessories
-Type: Transmitters
-Modes of operation: mono/stereo
-Rated HF output power: 30 mW
-Signal-to-noise ratio: 93 dB
-Total Harmonic Distortion (THD): 0.3 %
-Dynamic range: 88 dB
-Inputs: 2
-Input connectors: XLR (balanced)
-Input impedance (kOhms): 12 kOhm
-Antenna connector: BNC
-Controls: volume headphones
-Operating voltage: 12 - 18 V DC
-Width: 212 mm
-Height: 43 mm
-Depth: 123 mm
-Weight: 0,641 kg
-Accessories (included): power adapter
-LDU5047IEMR - LD Systems U504.7 IEM Receiver:
-Transmission frequency range: 470 - 490 MHz
-Type: Receivers
-Channels: 12
-Headphones ouput: 3.5 mm TRS
-Transmission method: FM, mono/stereo
-Frequency response: 40 - 16000 Hz
-Audio output: 3.5 mm TRS
-Minimum connected impedance: 16 Ohm(s)
-Max. audio output level: 80 mW @ 33 Ohm mW
-Indicators: RF (LED)
-Operating time: < 10 hours
-Controls: volume
-Operating voltage: 2 x 1.5 V AA
-Features: battery status LED
-Width: 64 mm
-Height: 100 mm
-Depth: 24 mm
-Weight: 0,095 kg
-Accessories (included): Antenna
Dimensions and Weight in Packaging
U504.7 IEM, 470-490 MHz
Shipping Weight: 5.5 lbs
Shipping Dimensions: 17 x 12 x 4 in
Manufacturer Part Number (MPN): LDU5047IEM
Blemished, U504.7 IEM, 470-490 MHz
Shipping Weight: 6.02 lbs
Shipping Dimensions: 21 x 17 x 14 in
Manufacturer Part Number (MPN): LDU5047IEM
U505.1 IEM, 514-542 MHz
Shipping Weight: 5.5 lbs
Shipping Dimensions: 17 x 12 x 4 in
Manufacturer Part Number (MPN): LDU5051IEM
Blemished, U505.1 IEM, 514-542 MHz
Shipping Weight: 6.02 lbs
Shipping Dimensions: 21 x 17 x 14 in
Manufacturer Part Number (MPN): LDU5051IEM

For support or warranty questions, please contact the manufacturer:
Phone: 973-335-7888 x 207
Email: service.us@adamhall.com

U504.7 IEM, 470-490 MHz

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