LD Systems U506 HHD (655 - 679 MHZ)
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Manufacturer Information
LD Systems
https://www.adamhall.com
info@adamhall.com
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Adam Hall GmbH
Email: info@adamhall.com
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A Series Designed to Democratize Wireless Performance on Stage
The U500 series was developed with a simple ambition: to offer a wireless microphone system capable of delivering professional sound, flawless reliability, and solid performance, while remaining accessible. Within the LD Systems range, it positions itself as a solution oriented towards stage and event use, with a design focused on radio stability, ease of use, and faithful transmission, suited to the demands of live performances as well as recurring events.
For Whom and For What Uses?
The U500 series vocal sets are aimed at singers, hosts, speakers, technical teams, and service providers who want to gain freedom of movement without sacrificing quality. Thanks to their advertised range and frequency management, they are suitable for concerts, speeches, corporate events, places of worship, multipurpose rooms, or mobile stages. The series is available in various configurations (handheld transmitter, headset microphone, lavalier microphone, single or dual receivers), making it easy to choose a coherent system depending on the voice, staging, and event format.
Technical specifications
| Category | Complete system | Capsule | dynamic / static |
Questions frequently asked
What is the frequency range of the LD Systems U506 HHD?
The U506 version operates in the UHF band from 655 to 679 MHz. Up to 12 systems can be used simultaneously within this range.
What range does this wireless microphone offer?
The stated range exceeds 100 meters in open field. True Diversity UHF reception and the squelch circuit help to minimize radio interference.
How long is the handheld transmitter's battery life?
The transmitter runs on two AA batteries and provides up to 10 hours of battery life as stated. RF power can be set to 2, 10, or 30 mW depending on setup requirements.
Is frequency scanning automatic?
An automatic scan selects a free frequency, then One-Touch infrared synchronization aligns the transmitter with the receiver. The OLED display shows group, channel, frequency, RF level, and battery status.
Is this system suitable for on-stage vocal performance?
This setup is intended for singing, hosting, and speaking at concerts or events. The series handheld transmitters accept interchangeable dynamic or condenser capsules, isolated from handling noise.



