Sennheiser EW-D ME4 SET (S1-7), Receiver, Bodypack Transmitter, ME 4 Lapel, 606.2-662MHz

Sennheiser EW-D ME4 SET (S1-7) Digital Wireless Lavalier System

The Sennheiser EW-D ME4 SET S1-7 (Article Number: 508711) is a professional, single-channel UHF digital wireless system. This complete package bundles a stationary rackmount receiver, a rugged bodypack transmitter, and the Sennheiser ME 4 cardioid lavalier microphone.

This system operates in the S1-7 frequency band (606.200 MHz to 662.000 MHz). This expansive 55.8 MHz switching bandwidth provides ample spectrum flexibility, making it an excellent choice for theater productions, corporate presentation halls, educational lecture capture, and houses of worship seeking a secure audio link in congested RF environments.

Key System Performance and Integration Attributes

• Equidistant Tuning Grid Precision: Borrowing technology from Sennheiser’s flagship Digital 6000/9000 lines, the EW-D platform completely eliminates intermodulation distortion. This permits an equidistant channel frequency layout spaced exactly 600 kHz apart, allowing you to stack dozens of wireless channels directly next to each other without calculating complex intermodulation math.

• 134 dB Ultra-Wide Dynamic Range: The bodypack transmitter handles everything from whisper-quiet speech to shouting dramatic dialogue. Its wide analog input dynamic range removes the need for legacy transmitter gain/sensitivity configuration adjustments; the internal digital audio resolution handles extreme transients without clipping.

• Bluetooth Low Energy (BLE) Smart Assist App: Sound crews can scan the local RF environment, name transmitters, assign channels, and monitor battery telemetry remotely using an iOS or Android smartphone via Bluetooth. It allows seamless sync pairing and remote muting overrides directly from your phone.

• Feedback-Rejecting Cardioid Lavalier: The included ME 4 miniature clip-on microphone features a cardioid polar pattern. By focusing on the speaker's mouth and rejecting ambient background noise from nearby PA speakers, it provides significantly higher gain-before-feedback in acoustically challenging rooms compared to omnidirectional lavaliers.

Technical Specifications Matrix

In the Box: Production Package Inventory

• 1 x EW-D EM Stationary Digital Single-Channel Receiver

• 1 x EW-D SK Digital Bodypack Transmitter

• 1 x ME 4 Cardioid Lavalier Microphone (with integrated clothing clip and foam windscreen)

• 2 x Rod/Whip Antennas (BNC Connection)

• 1 x GA 3 Rackmount Kit (Including blank panel and front-mount antenna extension ports)

• 1 x NT 12-5 CW Power Supply with universal regional wall adapters

• 4 x Non-Slip Rubber Feet (For flat tabletop receiver deployment)

• 2 x AA Alkaline Batteries

System Deployment and Hardware Interfacing Advice

Mind the Placement of the Cardioid Capsule: Because the ME 4 lavalier has a directional cardioid pick-up pattern, capsule alignment is vital for a natural tone. Clip the microphone centrally on the speaker's clothing (such as a tie or lapel), roughly 6 to 8 inches below the chin, with the top grille pointing directly up toward the mouth. If the speaker turns their head sharply to the side, a cardioid microphone will experience a slight drop in volume; ensure the cable has a subtle slack loop to absorb head movements without tugging on the clothing.

Locking the Input Pin Configuration: The EW-D SK bodypack uses a 3.5 mm locking TRS input jack. When plugging in the ME 4 microphone, always thread the connector's metal collar firmly into the bodypack's chassis socket. This secures the connection against clothing tugs and prevents static discharge pops or accidental connection dropouts mid-event.