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LD-Systems U505 CS 4 554 - 586 MHz

Item: PAH0021809-000
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4-channel wireless conference system, 1x receiver, 4x microphone bases and 4x gooseneck microphones  All product info

Product variations

LD-Systems U508 CS 4 823 - 832 MHz , 863 - 865 MHz

LD-Systems U508 CS 4 823 - 832 MHz , 863 - 865 MHz Product Image
  • Manufacturer: LD-Systems
£ 1,252.00
£ 1,295.00
incl. VAT, incl. Shipping Costs
or cheap with financing
available soon, estimated to be in stock: Jun 2, 2024
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Product information - LD-Systems U505 CS 4, 554 - 586 MHz

4-channel wireless conference system

  • True diversity UHF wireless conference system
  • Automatic channel search
  • Automatic frequency search
  • Infrared frequency synchronization of receiver and microphone unit
  • Pilot tone
  • Priority switching
  • Automatic and manual gate modes
  • Safety lock
  • RS-232 interface for external control
  • Set consisting of: 1 receiver, 4 microphone bases and 4 gooseneck microphones

LD-Systems U505 CS 4 at a glance

The LD-Systems U505 CS 4 is a wireless true diversity UHF conference system consisting of four microphone units with condenser microphones and a 4-channel receiver. The conference system enables effective communication through excellent voice quality and the use of state-of-the-art technology. With the LD Systems U505 CS 4, your conferences, meetings and discussions are guaranteed to be a success.

microphone units

The four microphone units of the LD Systems U505 CS 4 have a gooseneck condenser microphone with hypercardioid characteristic and illuminated ring for status indication. In addition to the XLR microphone connector with 28 V phantom power, the heavy table base has a button for on, off and mute, as well as a gain control and a switchable 130 Hz high-pass filter that effectively reduces proximity effect and structure-borne noise. A high-contrast OLED display shows radio frequency, battery status, station number, group and channel. The audio transmission range is from 60 Hz - 16 kHz.

LD-Systems U505 CS 4, 554 - 586 MHz
LD-Systems U505 CS 4, 554 - 586 MHz

4-channel receiver

For fast and convenient system setup, the 4-channel receiver of the LD Systems U505 CS 4 conference system has an automatic frequency and channel search, infrared synchronization, a digital encoder and four buttons for direct access to the individual channels. At the same time, the high-contrast OLED display provides a complete overview of all functions and settings such as audio and radio signal strength or priority and battery level of the microphone units. To suppress crosstalk, feedback and comb filter effects, the number of simultaneously enabled microphones can be specified.

The optional automatic or manual gate setting and a pilot tone ensure first-class sound quality and interference immunity of the U500 ® conference system. In addition to individual channel outputs, the receiver has a sum output, an access lock prevents unauthorized changes to the settings, and the RS-232 interface allows integration into external control systems.

For system expansion, up to five LD-Systems U500 receivers can be cascaded and operated in master-slave mode, providing a maximum of 20 microphone units.

Technical data

  • Modulation type: FM
  • Channels: 106
  • Radio frequency range: 554 - 586 MHz
  • Groups: 10
  • Antenna inputs: 2
  • Antenna connector: BNC
  • Frequency response: 60 - 16000 Hz
  • Noise suppression: Squelch
  • Total harmonic distortion (THD): < 0.2
  • Noise margin: > 100 dB
  • Controls: Digital encoder, Power On/Off, Access keys RX 1 - 4
  • Audio output balanced: 4 x XLR
  • Display elements: OLED display
  • Audio output Mix balanced: XLR
  • Width: 484 mm
  • Height: 44 mm
  • Depth: 243 mm
  • Max. output level: +12 dBu
  • Weight: 6 kg
  • Operating voltage: 1000 mA, 12 V DC

Intercom stations

  • Channels: 6 (6 x 10)
  • Groups: 6
  • Inputs: XLR
  • RF output power: 10 mW
  • Controls: Gain, Low Cut, Power / Mute
  • Display elements: LED
  • Power supply: 2 x AA battery
  • Operating time: up to 8 hours, battery dependent
  • Width: 115 mm
  • Height: 54 mm
  • Depth: 135 mm
  • Weight: 0.73 kg


  • Manufacturer: LD-Systems
LD-Systems U505 CS 4 554 - 586 MHz Product ImageLD-Systems U505 CS 4 554 - 586 MHz
£ 1,295.00

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