LD Systems U508 CS 4 4-Channel Wireless Conference System

Out of stock
4-Channel Wireless Conference System
We have developed the U500A in Germany to meet all of your requirements of a wireless conference system. It offers a professionally equipped solution for effective communication and interaction with advanced technology, excellent speech intelligibility and an elegant appearance. The user-friendly True Diversity UHF system with 60 channels in 6 groups facilitates easier installations and turns conferences, meetings and round tables into successful events.

The U500A terminals feature a gooseneck condenser microphone with hyper-cardioid characteristic and a light ring to display status. The heavy table stand features an XLR microphone input, 28 V phantom power, an on-off-mute switch, as well as a gain control and a selectable 130 Hz high-pass filter to effectively reduce proximity effect and structure-borne sound. A high-contrast OLED display shows radio frequency, battery status, terminal number, group and channel. The audio transmission range is 60 Hz - 16 kHz.

For simple, fast configuration, the 4-channel U500A conference system receiver features automatic frequency and channel scanning, infrared synchronisation, a digital encoder and 4 buttons to directly access the individual channels. The high-contrast OLED display provides a comprehensive overview of all functions and settings such as audio and radio signal strength, and priority and battery status of the terminals. The number of simultaneously-live microphones can be configured in order to eliminate crosstalk, feedback and comb filter effects. Selectable automatic or manual gate settings and a pilot tone ensure that the U500A conference system delivers superb sound quality with excellent noise immunity. In addition to its individual channel outputs, the receiver also has a master output, an access lock to prevent unauthorised adjustment of settings, and the RS-232 interface to facilitate integration into external control systems.

For system expansion, up to five U500A receivers can be cascaded and used in master-slave mode, making a maximum of 20 terminals possible. The U500A conference system is available in three versions which work in the following frequency areas: 554 - 586 MHz, 662 - 694 MHz or 823 - 832 MHz + 863 - 865 MHz

True diversity UHF wireless conference system
Automatic channel scan
Automatic frequency search
Infrared frequency synchronizing of receiver and microphone unit
Pilot tone
Priority switching
Automatic and manual gate modes
Security lock
RS-232 interface for external control

Product type: Conference Systems
Type: Installations
Modulation Type: FM
Transmission frequency range: 823 - 832 MHz, 863 - 865 MHz
Channels: 60 (6 x 10)
Groups: 6
Antenna inputs: 2
Antenna connector: BNC
Frequency response: 60 - 16000 Hz
Noise reduction: Squelch
Total Harmonic Distortion (THD): < 0.2 %
Signal-to-noise ratio: > 100 dB
Audio output, balanced: 4 x XLR
Audio mix output, balanced: XLR
Max. output level: +12 dBu
Controls: digital encoder, Power On/Off, RX 1 - 4 quick access buttons
Indicators: OLED Display
Operating voltage: 1,000 mA, 12 V DC
Width: 484 mm
Height: 44 mm
Depth: 243 mm
Weight: 6 kg
LDU508CST - U508 CST
Product type: Microphone Accessories
Transmission frequency range: 823 - 832 MHz, 863 - 865 MHz
Channels: 60 (6 x 10)
Groups: 6
Inputs: XLR
Frequency response: 60 - 16000 Hz
Signal-to-noise ratio: > 100 dB
Rated HF output power: 10 mW
Controls: Gain, Low Cut, Power / Mute
Indicators: LED, OLED Display
Operating voltage: 2 x AA battery
Operating time: up to 8 hrs., battery-dependent
Width: 115 mm
Height: 54 mm
Depth: 135 mm
Weight: 0,73 kg

Delivery & Returns

Free Delivery

This is offered on all products regardless of order value to all mainland UK postcodes. Your purchase will be with you within 3 working days of your order being placed.

If you are in the Scottish Highlands, Northern Ireland, Isle of Man and the Channel Isles you will still get free delivery but your order may take up to 5 working days to get to you.


I need my products quickly- can you help?

Absolutely!  At check out you can select the option that suits you best.

We offer Next day, Saturday, Pre-10am and Pre-12pm delivery.

Unfortunately these options are not yet available for customers in the Scottish Highliands, Northern Ireland, Isle of Man and the Channel Isles.


When is the cut off for Next day delivery?

If you place your order before 2pm Monday- Friday, we will dispatch the same day.


For more information, including International delivery please click here.



Our returns department aims to help you as quickly as possible with any issues you may have with your product. 

Please click here for more information on returning products.