This product supports Relacart WireMicX software ![]()
Product Description
The UR-D2 is Relacart's latest fully self-developed digital architecture wireless microphone system. Combining powerful functionality with operational flexibility, it features a 64MHz operating bandwidth and low intermodulation distortion, enabling 20 simultaneously active transmitters within an 8MHz bandwidth and supporting over 60 compatible channels in a single frequency band. This ensures stable wireless transmission even in crowded RF environments.
With 24-bit/48kHz digital audio quality, the system accurately reproduces sonic details beyond the capabilities of analog systems. A total system latency of <3ms and a flat frequency response across 20Hz–20kHz ensure precise vocal reproduction—from deep resonances to high-frequency nuances—delivering transparent, high-fidelity sound. A dynamic range exceeding 120dB provides exceptional signal-to-noise performance.
The system incorporates intelligent predictive diversity reception technology, which preemptively assesses signal quality and uses algorithmic optimization to maintain stable transmission. It fully meets the complex demands of multi-channel, large-scale audio applications.
For secure transmission needs, AES-256 encryption is available—ideal for confidential meetings—ensuring privacy protection. This encryption also eliminates RF interference by allowing only encrypted signals to be received.
Designed for easy installation and integration, the system can be seamlessly expanded via existing Dante networks, scaling from small conference rooms or classrooms to large campus and enterprise installations. Advanced features enable detailed configuration management while simplifying complex channel and audio setups. Additionally, the WireMicX Wireless management system supports remote system maintenance, monitoring, and control for streamlined operation.
Functional Features
64MHz System Bandwidth
With an ultra-wide 64MHz system bandwidth — broader than most comparable products on the market — the system offers abundant frequency options even in large-scale events requiring multiple devices. This makes it easier to avoid interference and ensure stable performance.
Intelligent Predictive Diversity Reception
Utilizing intelligent predictive diversity reception technology, the system preemptively gathers signal quality data and employs algorithmic optimization to maintain consistent transmission stability. It fully meets the complex demands of multi-channel and large-scale audio transmission.
AES-256 Encryption
Equipped with AES-256 high-level encryption suitable for any scenario requiring secure transmission, such as confidential meetings. This ensures privacy protection while simultaneously eliminating RF interference by allowing only encrypted signals to reach the receiver.
WireMicX Wireless management system
Compatible with Relacart’s professional WireMicX Wireless management system, enabling computer connectivity for remote monitoring, management, and control of the system — simplifying operation and maintenance.
Dante Network Audio Protocol
Features Dante network audio output, which automatically identifies the product’s Dante channels. Audio signals can be seamlessly routed to any Dante-compatible audio device.
High-Fidelity Sound Quality
Incorporates lossless audio transmission technology with 24-bit/48kHz sampling and total system latency below 3ms. Delivers a flat frequency response across 20Hz–20kHz, accurately reproducing the full spectrum of vocal details — from deep resonances to high-frequency nuances.
Details
Specifications
Package Contents
Connection diagram
Polar Pattern
Frequency Response
Chassis Specification: EIA Standard 1U
Reception Method: True Diversity Dual-Channel Reception
Frequency Stability: ±0.005%
Carrier Frequency Range: 470MHz–936MHz
Operating Range: 100 meters (open area)
Sampling Rate: 24-bit/48kHz
Frequency Response: 20Hz–20kHz ±1dB
Modulation Method: QPSK
Bandwidth: 64MHz (region-dependent)
Overall S/N Ratio: >110dB
Total Harmonic Distortion (T.H.D.): <0.1% @1kHz
RF Tuning Step: 25kHz
Image Rejection: >70dB (typical)
RF Sensitivity: -98 dBm @ 10 BER
Latency: <3ms
Audio Dynamic Range (A-weighted, typical, system gain @ +10): >120dB
Total Harmonic Distortion (-12dBFS input, system gain @ +10): <0.1%
Operating Temperature Range: -10℃ to 50℃
Storage Temperature Range: -20℃ to 70℃
Power Supply: DC 12V/1A
Dimensions (mm): 410 (L) × 206 (W) × 43 (H)
Antenna Interface: Dual BNC, Supports +12V/150mA Output
Audio Output Interfaces: 6.3mm Unbalanced Audio Output, 2× XLR Balanced Audio Output
Weight: Approx. 2kg
Performance Introduction
The UR-D2 is a high-performance Dual-Channel Digital Wireless Microphone System engineered for demanding professional audio environments such as conferences, education, broadcast, and large-scale live events. Leveraging Relacart’s fully self-developed digital RF architecture, the system delivers exceptional spectrum efficiency, signal stability, and audio transparency even in highly congested frequency conditions.
As a professional-grade True Diversity Wireless Microphone System, the UR-D2 continuously analyzes RF signal quality across dual receiving paths and intelligently selects the optimal signal in real time. Combined with predictive diversity algorithms, this design effectively minimizes dropouts, multipath interference, and signal fading, ensuring uninterrupted audio transmission for mission-critical applications.
With support for up to 20 simultaneous transmitters within an 8MHz bandwidth and more than 60 compatible channels in a single frequency band, this Dual Channel Wireless Microphone System is ideal for multi-room installations and large venues that require scalable wireless solutions. The ultra-wide 64MHz tuning bandwidth further enhances frequency planning flexibility, allowing users to quickly avoid interference and optimize channel allocation.
In terms of sound performance, the UR-D2 stands out as a professional Digital Wireless Microphone System with 24-bit/48kHz lossless audio transmission, ultra-low latency below 3ms, and a wide dynamic range exceeding 120dB. This ensures natural vocal reproduction with exceptional clarity, depth, and detail, making it suitable for speech reinforcement, corporate presentations, and high-end audio production.
For applications where data security is critical, AES-256 encryption guarantees protected wireless transmission, making the UR-D2 a reliable Dual-Channel Wireless Microphone solution for confidential meetings, government facilities, and enterprise environments. Integration with Dante network audio and the WireMicX management platform further enhances system scalability, centralized control, and long-term operational efficiency.
Technical Specifications
The UR-D2 Dual-Channel Digital Wireless Microphone System combines wideband RF performance, advanced diversity reception, and high-resolution digital audio into a compact 1U rackmount chassis. Operating across a broad 470MHz–936MHz frequency range with ±0.005% frequency stability, it delivers reliable long-distance transmission up to 100 meters in open environments.
Featuring true diversity dual-channel reception, QPSK digital modulation, and a 64MHz system bandwidth, the system achieves excellent RF sensitivity, strong image rejection, and outstanding resistance to interference. Audio performance is equally impressive, with a flat 20Hz–20kHz frequency response, ultra-low distortion below 0.1%, and a signal-to-noise ratio exceeding 110dB.
Designed for professional installations, this True Diversity Wireless Microphone System supports balanced and unbalanced audio outputs, Dante network audio integration, and external antenna expansion via dual BNC connectors with power output. Combined with wide operating temperature tolerance and robust build quality, the UR-D2 delivers stable, high-fidelity performance for long-term professional use.
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