Sennheiser EW-DX EM 2 (Q1-9) Dual Digital Wireless Receiver

Enterprise-Grade Dual Digital Receiver: Sennheiser EW-DX EM 2 (Q1-9)

The Sennheiser EW-DX EM 2 (Q1-9) serves as the central hub for high-density, multi-channel wireless audio deployments. Designed for system integrators, audio engineers, and venue production teams, this half-rack (19″ 1U) two-channel digital receiver delivers pristine, uncompressed audio transmission paired with advanced spectrum efficiency.

Operating within the clean Q1-9 Frequency Spectrum (470.2 – 550.0 MHz), this receiver from our Sennheiser evolution wireless series catalog features an impressive 88 MHz switching bandwidth. Combined with Sennheiser’s equidistant channel grid (600 kHz spacing in Standard Mode and 300 kHz in Link Density Mode), the EM 2 allows you to squeeze maximum channels into crowded RF environments without intermodulation calculation headaches.

Key Features & Pro-Level Advantages

• Dual-Channel 1/2 Rack Space Design: Houses two independent digital wireless receiver channels in a compact, rugged half-rack metal chassis with included rackmount ears.
• Q1-9 Frequency Band (470.2 – 550.0 MHz): Provides up to 88 MHz tuning bandwidth for exceptional frequency flexibility across crowded UHF spectrums.
• Equidistant Frequency Grid: Simplifies multi-channel setup by removing intermodulation distortion, enabling up to 146 channels in Standard Mode or 293 channels in Link Density Mode.
• AES-256 Encryption: Keeps digital wireless audio streams completely secure for corporate boardroom presentations, government facilities, and confidential events.
• Comprehensive Network Control: Onboard RJ45 Ethernet port enables real-time monitoring, auto-frequency setup, and firmware updates using Sennheiser Control Cockpit and WSM software.
• Power Over Ethernet (PoE): Flexible power infrastructure supporting standard 12V DC power supply unit or IEEE 802.3af Class 3 PoE network power.
• Intelligent Auto-Scan & Bluetooth LE: Effortlessly scan for clean frequencies directly on the front panel display or sync parameters wirelessly via mobile device using the Smart Assist App.
• Switching Diversity Architecture: Combines signals from two BNC antenna inputs to maintain continuous, dropout-free signal transmission over long distances.

Key Technical Specifications

• Device Type: Professional Dual-Channel Digital Wireless Rackmount Receiver

• Frequency Range: Band Q1-9 (470.200 – 550.000 MHz)

• Switching Bandwidth: Up to 88 MHz

• System Latency: 1.9 ms

• Audio Dynamic Range: 134 dB (when paired with EW-DX / EW-D transmitters)

• Encryption: AES-256

• Form Factor: Half-Rack 19″ / 1U

• Audio Outputs: 2x Balanced XLR Male + 2x Unbalanced 1/4″ (6.3 mm) TS Jacks

• Antenna Inputs: 2x BNC Connectors (50 Ω, with 12V DC power for active splitters/antennas)

• Network Interface: 1x RJ45 Ethernet Port (PoE IEEE 802.3af Class 3 compliant)

• Power Supply: 12 V DC (Adapter Included) or Power over Ethernet (PoE)

• Dimensions: Approx. 212 x 44 x 189 mm

• Weight: Approx. 1000 g (excluding antennas)

Compatibility & System Integration

• Transmitter Compatibility: Pairs seamlessly with all Sennheiser EW-DX transmitters operating in the Q1-9 band, including EW-DX SK (bodypack), EW-DX SKM / SKM-S (handheld), EW-DX TS (tabletop boundary stand), and EW-DX SKP (plug-on transmitter).

• Antenna & Distribution Systems: Connects to passive or active directional antennas (e.g., Sennheiser ADP UHF) and multi-channel antenna splitters (e.g., Sennheiser EW-D ASA).

• Software Ecosystem: Fully integrated with Sennheiser Control Cockpit, Wireless Systems Manager (WSM), and Sennheiser Smart Assist App (iOS/Android).

• Box Contents: EW-DX EM 2 dual-channel receiver, 2 rod antennas, power supply unit with regional adapters, GA 3 rackmount kit (rack ears, coupling elements, blanking plate), rubber feet, and quick guide.

• System Expansion: Explore active antennas, multi-channel splitters, and handheld or bodypack transmitters on our dedicated Sennheiser Brand Store.