Sennheiser EW-DX 835-S SET Dual-Channel Digital UHF Wireless System

The Sennheiser EW-DX 835-S SET Dual-Channel Digital UHF Wireless System with Two Handheld Mics & MMD 835 Capsules are professional workflow by utilizing refined technologies and decades of research to deliver a digital UHF system that can be scaled with ease. With its advanced feature set and hardware options, classrooms, corporate campuses, and live productions benefit from a network-ready system that is designed to integrate seamlessly. The system quickly assesses your environment and uses equidistant channel spacing to deploy frequencies while tools like Sennheiser’s Control Cockpit, Wireless Systems Manager, and Smart Assist App allow you to monitor your system remotely. In-device charging, 12-hour battery operation, and switching bandwidth up to 88 MHz are only a few more of the many features that make EW-DX the right tool for the job.

All-in-one digital wireless lavalier set for those who speak and present, featuring Sennheiser's renowned MKE 2 omni-directional clip-on lavalier microphone.

Exceptional Audio Performance

The system offers a remarkable 134 dB input dynamic range, eliminating the need to set gain on your wireless transmitters, thanks to the proprietary Sennheiser Performance Audio Codec (SePAC). With low latency of just 1.9 ms, it ensures crystal-clear, real-time audio transmission ideal for live performances and professional applications.

Advanced Frequency Management

The AutoScan feature quickly scans your environment and deploys frequencies with equidistant channel spacing, allowing seamless setup even without RF expertise. The system supports equidistant channel spacing for easy allocation of intermodulation-free channels: Standard Mode with 600 kHz spacing for up to 146 channels, and Link Density (LD) Mode with 300 kHz spacing for up to 293 channels. Additionally, the 88 MHz switching bandwidth provides flexible frequency options for various environments.

Comprehensive Control and Connectivity

With network capability, the system enables expanded remote control via Sennheiser Control Cockpit, Wireless System Manager (WSM), and third-party media control systems through dedicated plug-ins. Remote operation is also possible via the Smart Assist App over Bluetooth Low Energy (BLE) at distances of up to 25 meters, allowing convenient control directly from your mobile device.

Secure and Reliable Operation

Ensure the secure transmission of confidential content with AES 256 encryption. The system supports up to 12 hours of operation using the included BA 70 rechargeable lithium-ion battery, providing long-lasting performance for extended sessions.

User-Friendly Features

Each transmitter includes function buttons that allow you to control all settings directly from the handheld unit, along with a button lock to prevent accidental changes. The persistent E-Ink display provides “always-on” visibility, keeping parameters readable even when batteries are removed.

Flexible Charging and Compatibility

Transmitters feature charging contacts for in-device charging using the CHG 70N charger (sold separately). Additional versatile charging options include the CHG 70 N, L 70 USB, and LM 6070 Module for the L 6000 full rack charging station. The Sennheiser Standard Capsule Interface ensures compatibility with a wide range of Sennheiser and Neumann capsules (sold separately).

Global Versatility

Designed for worldwide use, the system’s flexible frequency options comply with local RF regulations, ensuring reliable performance wherever your production takes place.

What’s Included: The package comes with two EW-DX SKM-S handheld transmitters paired with two MMD 835 capsules, providing reliable and high-quality vocal performance. It also includes one EW-DX EM 2 dual-channel rackmount receiver for seamless system integration, along with two BA 70 rechargeable batteries to ensure extended operating time and convenience during performances or events.

Product Specifications:

Wireless Technology: Digital UHF

Audio & Acoustic Properties:

Transducer Type: Dynamic

Pickup Pattern: Cardioid

Dynamic Range: >134 dB

Audio Output Level: 18 dBu max.

Latency: 1.9 ms

THD: ≤ -60 dB (1 kHz @ -3 dBfs)

Transmission Power:

Audio Link: 10 mW ERP (Y1–3 Range: 12 mW ERP);

BLE: max. 10 mW EIRP

Bluetooth Transmission Frequency: 2402 – 2480 MHz

Electrical & Power:

Sensitivity: 2.1 mV/Pa

Input Voltage: 11 – 13 V DC or PoE IEEE 802.3af Class 0 (CAT5e or higher)

Battery Voltage: 3.8 V

Battery Capacity: 1.72 Ah

Battery Count: 2 (included)

Charging Current: ≤ 1 A

Environmental:

Operating Temperature: -10°C to +55°C (14°F to 131°F)

Operating Humidity: 5 – 95% (non-condensing)

Connectivity:

Connection Type: Wireless (UHF Digital + BLE)

What’s Included:

2 × EW-DX SKM-S Handheld Transmitters

2 × MMD 835 Capsules

1 × EW-DX EM 2 Dual-Channel Rackmount Receiver

2 × BA 70 Rechargeable Batteries

Dimensions & Weight:

Receiver Dimensions: 212 × 44 × 189 mm

Product Dimensions (set): 405 × 350 × 73 mm

Product Weight: 2.2 lbs. (receiver)

Shipping Dimensions: 18.5 x 14 x 2.9"

Shipping Weight: 2.5 kg / 5.51 lbs.