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LD Systems



Wireless Microphone System with Dynamic Handheld Microphone


Item No.: LDU3051HHD


  • UHF diversity wireless system with FM technology
  • 12 selectable channels
  • 100 metre range under ideal conditions
  • Up to 6 systems can be used simultaneously
  • ASC infrared synchronisation between transmitter and receiver
  • Squelch with pilot tone
  • 10-hour transmitter operating time with two AA batteries
  • Receiver in sturdy metal housing
  • Optional rack mounting kit as accessory
  • U500 replaceable heads also suitable for the U300 handheld microphone
  • Description

    Developed in Germany, the UHF diversity wireless systems from the U300® series deliver excellent audio performance. They achieve a range of 100 metres in ideal conditions and are available in five frequency bands: 584–608 MHz, 655–679 MHz, 823–832 MHz + 863–865 MHz, 470–490 MHz or 514–542 MHz. Up to six U300® systems can be used simultaneously in each frequency band. Convenient one-touch synchronisation via infrared ensures fast, problem-free wireless connection between the transmitter and receiver, while a squelch with pilot tone ensures disruption-free operation.


    U300® transmitters have a 10 mW output and an operating time of 10 hours on two AA batteries. The handheld microphone’s frequency response ranges from 55 Hz to 16 KHz. With a lower cut-off frequency of 25 Hz, the bodypack is also suitable for transmitting 5-string bass guitars with a deep H string. The bodypack’s input level can be adjusted to both active and passive guitars and basses over three levels. The power switch features a handy standby mode for temporary muting. The U300® receiver is fitted with a bright LCD channel display, an LED chain for displaying audio signal strength and both a balanced XLR and an unbalanced 6.35 mm audio output. The audio output can also be switched to instrument level for directly connecting to guitar and bass amplifiers.


    U300®-series wireless systems feature a fresh, modern design and are available as vocal sets with receiver and dynamic handheld microphone with cardioid characteristic, bodypack and headset or bodypack and lavalier microphone. The microphone characteristic can be changed using U500®-series replaceable heads. U300® instrument sets are available with bodypack and clip-on microphone for wind instruments or a double-shielded low-capacitance cable for guitars and basses.

  • Specification

    Product type Wireless Microphone Systems
    Type Set
    Transmission frequency range 514 - 542 MHz
    Weight 0,94 kg


    LDU3051R - LD Systems U305.1 HHD Receiver

    Product type Wireless Microphone System Accessories
    Type Receivers
    Modulation Type FM
    Channels 12
    Groups 1
    Antenna inputs 2 x fixed
    Frequency response 25 - 16.000 Hz
    Noise reduction Squelch
    Transmission optimization Pilot tone
    Total Harmonic Distortion (THD) < 0.3 %
    Signal-to-noise ratio 104 dB
    Audio output, balanced XLR
    Controls volume
    Audio output, unbalanced 6.3 mm jack, switchable unbalanced output level
    Indicators LC display
    Operating voltage 12 V DC - 18 V DC (500 mA), external power supply
    Audio mix output, balanced XLR
    Audio mix output, unbalanced 6.3 mm jack
    Max. output level +10 dBu (Bal), +7 dBV (Unbal, Line), +2,5 dBV (Unbal, Instr) dBu
    Headphones outputs 6.3 mm TRS
    Weight 0,7 kg
    Other features IR frequency synchronisation
    Width 211 mm
    Height 43 mm
    Depth 120 mm
    Accessories (included) Power supply


    LDU3051MD - LD Systems U305.1 HHD Dynamic handheld microphone

    Type Transmitters
    Microphone type condenser
    Directivity Cardioid
    Frequency response 55 - 16000 Hz
    Rated HF output power 10 mW
    Controls Power On/Off
    Indicators Power LED (Power ON: green)
    Operating voltage 2 x AA battery
    Operating time >10 h
    Length 257 mm
    Diameter 50 mm
    Weight 0,235 kg
    Other features Pilot tone
  • Leadtime 5-10 Days

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