CAPPED PRICE SHIPPING FOR ORDERS UP TO 15KG TO MOST AREAS - ORDERS OVER $1,000 FREE SHIPPING

LD Systems U506 IEM Wireless In Ear Monitor System (655-679 MHz)

LD Systems

LD-U506IEM

Move freely on stage while the perfect monitor mix is delivered directly to your ears with the LD Systems U506 IEM wireless in ear monitor system. With their amazing performance and reliability, they will surpass your expectations for certain. Designed with the pro user in mind, they feature advanced technology, contemporary looks and straightforward operation.

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.

The LD U506 system operates in the 655 - 679 MHz band, permitting running up to 12 systems simultaneously. To check if this frequency band operates problem-free in your area please use the ACMA Channel Finder at http://channelfinder.acma.gov.au/.

System available with or without earphones

Warranty: 2 Years

  • 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
Product type In-ear Monitoring
Type Transmitters
Type Receivers
Transmission frequency range 655 - 679 MHz
Transmission frequency range 655 - 679 MHz
Type Set
Transmission frequency range 655 - 679 MHz
Channels 12
Channels 12
Transmission method FM, mono/stereo
Modes of operation focus/mono/stereo
Weight 0,755 kg
Frequency response 40 - 16000
Transmission method FM, mono/stereo
Rated HF output power Variable (2mW, 10mW, 30mW)
Frequency response 40 - 16000
Signal-to-noise ratio 93 dB
Total Harmonic Distortion (THD) 0.3 %
Audio output 3.5 mm TRS
Max. audio output level 33 mW @ 16 Ohm mW
Max. audio output level 80 mW @ 33 Ohm mW
Dynamic range 88 dB
Antenna connector Fixed to housing
Controls Down
Controls Up
Controls On / Off
Controls volume
Inputs 2
Input connectors Combo TRS 6.3 mm
Input connectors XLR (balanced)
Input impedance (kOhms) 12 kOhm
Indicators Multifunctional OLED-Display
Indicators RF (LED)
Power supply 2 x 1.5 V AA
Operating time < 10 hours
Width 64 mm
Antenna connector BNC
Controls Power On/Off
Controls Menu selector Button
Controls volume headphones
Height 100 mm
Depth 24 mm
Indicators Multifunctional OLED-Display
Power supply 12 - 18 V DC
Weight 0,095 kg
Accessories (included) 2 x AA batteries
Accessories (included) Antenna
Features battery status LED
Width 212 mm
Height 43 mm
Depth 123 mm
Weight 0,641 kg
Accessories (included) 19" Rack mount kit
Accessories (included) BNC-Antenna
Accessories (included) power adapter



Order weight is calculated on whichever of the dead (actual) or volumetric weight is the greatest. As of 11/6/25 capped $11.00 to $18.50 for up to 15kg to most areas. For orders under $50 options are Standard Postage $11.00 or Express Shipping for $18.50. Orders over $1,000 ship for free*. Express Shipping covers one delivery attempt so please provide an address where someone is available to sign for courier delivery between 9am and 5pm weekdays. You can instruct us to ask the courier to leave your parcel unattended in a safe place, although please be aware that if anything happens to the parcel, neither us nor the courier company can be held responsible. Work addresses are a great delivery option. If using a work address please include the business' name.

* for some larger items does not apply to Australian remote island locations, some mainland remote locations (outside Darwin NT and Perth WA metro areas) or outside Australia. If unsure if you are entitled to capped shipping it is best to contact us prior to placing order.

Should you find an identical stocked item for a lower price from a competitor, we will happily match the price, subject to certain terms and conditions. See our Price Match Policy