LD Systems LDU306IEMHP In Ear Monitoring System

The U300® in-ear monitoring systems is designed for unlimited freedom of movement on the stage with perfect in-ear monitor sound at all times. Developed in Germany, their clear, modern design and straightforward operation make them the perfect choice – not just for beginners. Their reliable range of up to 100 m and their low-reaching frequency band of 50 Hz to 16 kHz ensure professional performance. U300® in-ear sets are available for operation in 655 MHz – 679 MHz (B6) frequency band. Six systems can be used simultaneously in each case.

The U300® in-ear transmitters offer a choice of 12 transmission channels and an RF transmission power of 10 mW. They can also be operated in mono or stereo mode. Combo sockets serve as symmetrical XLR and asymmetrical 6.35 mm jack inputs. Left and right input levels can be controlled separately, while two LED chains indicate audio signal strength.

The U300® bodypack receiver has a mini-jack socket to connect the earphones as well as displays for the channel, stereo mode and low battery status. Running on two AA batteries, it has an operating time of 10 hours. A practical controller allows individual adjustment of the monitoring volume during a performance. A convenient 19″ rack assembly kit included.


  • Low-reaching frequency response
  • 12 selectable channels
  • Choice of stereo or mono mode
  • Up to 6 systems can be used simultaneously
  • 10-hour bodypack operating time with two AA batteries
  • Unlimited number of bodypacks can be set to the same transmission frequency
  • Channel and RF reception displayed on bodypack
  • Transmitter in rugged metal casing with stereo level display
  • Removable antenna with BNC connection
  • 19” rack assembly kit included.
  • Earphones included

Technical Information

Product number: LDU306IEMHP
Product type: In-ear Monitoring Accessories, In-ear Monitoring, Headphones
Type: Set, Receivers, Transmitters
Transmission frequency range: 655.000 – 679.000MHz
Frequency response: 50 – 16.000Hz, 30 – 20000Hz
Channels: 12
Modes of operation: mono/stereo
Impedance: 16Ohm(s)
Transmission method: FM, mono/stereo
Connection type: 3.5 mm TRS
Rated HF output power: 10 mW
Cable length: 1.5m
THD: 0.25 %, <0,5%
Signal-to-noise ratio: 90dB
Audio output: 3.5 mm TRS
Minimum connected impedance: 16Ohm(s)
Max. audio output level: 73 (@ 33 Ohms load capacity)mW, 100 (@ 16 Ohms load capacity)mW
Dynamic range: 88dB
Antenna connector: Fixed to housing, BNC
Inputs: 2
Controls: Channel down, on/off switch, input level, Channel up, volume control, Power On/Off, Mono/stereo switch
Input connectors: XLR, 6.3 mm jack
Weight: 0,12kg, 1,51kg, 0,66kg, 0,085kg
Indicators: RF (LED), LC display
Input impedance (kOhms): 8.5kOhm
Input sensitivity: -4.5 dbu
Operating voltage: 2 x 1.5 V AA, 12 – 18 V DC
Operating time: < 10 Std.
Dimesnsions: Transmitter: 212 x 43 x 24 mm
Receiver: 64 x 103 x 123 mm
Power consumption: 1.7W
Features: battery status LED, incl. batteries