Sennheiser EW 100 G1 Diversity UHF Receiver (EM 100) 740-772 MHz Wireless

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Sennheiser EM 100 Diversity Receiver — UHF 740–772 MHz Half-Rack 🇩🇪 📡

Diversity UHF Half-Rack — C-Band (005) • Made in Germany • EW 100 Professional Wireless System

📦 Product presentation

THE Diversity receiver Sennheiser EM 100 is the heart of the famous wireless system Evolution Wireless EW 100, recognized worldwide for its reliability and professional audio quality. Thanks to its technology Diversity with two BNC antennas, it ensures stable reception by constantly selecting the best signal, thus eliminating cuts during your recordings.

This copy is in C-Band (005): 740–772 MHz (Order No. 78403), made in Germany. Ideal for stage sound system, THE video reports, THE conferences, production studios and wireless microphone systems in half-size rack. Its all-metal casing guarantees foolproof robustness in the field and in the control room.

📸 The photos are given for illustration purposes. Only the content of the advertisement is authentic for the exact reference of the product and the accessories included. If in doubt, do not hesitate to contact us before your purchase.

⚙️ Technical characteristics

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Reception

Diversity (2 antennas)

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Frequency range

740 – 772 MHz (UHF)

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Band / Band

Band C — Code 005

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Available channels

4 switchable channels

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Audio output

6.35 mm jack (non-symmetrical)

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Format

Half-rack

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Food

12 V DC / 300 mA

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Antennas

2 × BNC (⚠️ not included)

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Dimensions

190 × 212 × 43mm

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Weight

Approx. 980g

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Temperature

-10°C to +55°C

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Manufacturing

Made in Germany 🇩🇪

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Compander

Sennheiser HDX

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S/N ratio

≥ 110 dB(A)

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Order No.

78403

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Certifications

FCC • CE

🔍 Product Condition

Device sold in used tested and functional. The receiver has been checked and works perfectly. Power adapter not included (compatible with any 12V DC / 300 mA adapter with standard connector). ⚠️ Antennas are not included — the receiver is sold alone, without the two BNC antennas visible in the illustration photos.

✅ Why buy from us?

🛡️ 30 day warranty — return accepted if the product does not correspond to the description
📦 Secure and fast shipping with carrier tracking number provided
🧾 Professional invoice with 0% VAT in paper format enclosed in each package
💬 Responsive seller — response within 24 hours to all your questions

⚠️ Software disclaimer: We cannot be held responsible for problems related to software, drivers or firmware updates. We do not provide technical support.

❓ Frequently Asked Questions (FAQ)

❓ Does the receiver come with its BNC antennas?

No, antennas are not included in this listing. The Sennheiser EM 100 Diversity receiver is sold alone, without the two BNC antennas visible in the illustration photos. UHF compatible BNC antennas are easily found at any professional audio retailer.

❓ Which mains adapter should I use to power this Sennheiser EM 100 receiver?

A 12V DC power adapter, 300 mA minimum, with positive central jack connector is required. Compatible adapters are readily available in the market. The original EM 100 receiver comes with the NT 2-3 power supply, but any compatible universal 12V power supply works perfectly.

❓ Is this Sennheiser EW 100 EM 100 C-band (740–772 MHz) receiver compatible with G2, G3 and G4 transmitters?

Yes, the Sennheiser Evolution Wireless series is backward compatible between the G1, G2, G3 and G4 generations, provided they work on the same UHF frequency band. You can use an SK 100 bodypack transmitter or an SKM 100 handheld microphone of different generations, as long as the transmitter covers the 740–772 MHz range well.

❓ What is Diversity technology and what is it used for in an HF receiver?

Diversity reception uses two independent BNC antennas, not supplied with this receiver. The receiver selects the antenna with the best signal in real time, eliminating audio dropouts and dead zones due to interference or obstacles. It is a reference technology for professional wireless microphone systems for live, ENG, broadcast and conference.

❓ What is the transmission range of the Sennheiser EW 100 wireless receiver?

In optimal conditions (clear line of sight), the system offers a range of up to 100 meters. This range may vary depending on the environment (walls, obstacles, RF interference) and the frequency band used. For large stages, the use of remote antennas with BNC cables is recommended.

❓ How to connect the 6.35mm jack output to a mixer with XLR input?

The EM 100 receiver has a non-symmetrical 6.35 mm jack output. To connect it to a mixer equipped with XLR inputs, use a 6.35 mm mono jack to male XLR adapter cable, available at any audio equipment store. The optional Sennheiser CL 100 cable is specially designed for this purpose.

❓ Is the 740–772 MHz band (Band C) authorized in France for wireless microphones?

The 740–772 MHz band corresponds to UHF frequencies currently used in France by mobile telephony (4G/5G). Its use for wireless microphones requires prior verification with the ANFR. For strictly intended use, the recommended free bands are the range 470–694 MHz. Always check the regulations in force before any professional or public use.

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