Sennheiser HME 110 C3 - without plug

The Sennheiser HME 110 C3 is a rugged passive aviation and communication headset featuring open cable ends for custom connector installation. Based on the proven HME 110 series, it combines a closed over-ear design with effective passive noise attenuation, excellent speech intelligibility and comfortable long-term wear.

Unlike the HME 110 ATC with pre-installed standard aviation plugs, the HME 110 C3 is supplied without connectors. The approximately 1.85 m connection cable features open, pre-tinned cable ends, allowing suitable connectors to be installed according to the specific application or enabling integration into customized communication systems.

The HME 110 C3 relies entirely on passive noise attenuation and requires no batteries or active electronics. The closed ear cups effectively reduce distracting ambient and cockpit noise.

Passive noise attenuation is frequency-dependent and ranges from more than 10 dB up to 40 dB. This makes the headset particularly suitable for applications where reliable communication and effective isolation from ambient noise are required.

For clear and reliable voice transmission, the HME 110 C3 features the proven MKE 45-1 noise-compensated electret microphone. The unidirectional microphone reduces distracting ambient noise during transmission and helps provide excellent speech intelligibility.

The flexible microphone boom allows precise positioning of the microphone directly in front of the mouth. The microphone can be worn on either the left or right side, allowing the headset to be adapted to the user's individual preference.

For a high level of comfort, the HME 110 C3 features extra-soft, circumaural ear pads and a padded headband. The closed over-ear design completely surrounds the ears and contributes significantly to the headset's passive noise attenuation.

Weighing approximately 350 g without the cable, the HME 110 C3 combines rugged construction with comfortable wear even during extended periods of use.

The volume control located on the ear cup allows the listening volume to be adjusted quickly and easily.

The headset can be switched between Mono and Stereo operation, providing additional flexibility for integration with different communication and audio systems.

The Sennheiser HME 110 C3 comes with a 5-year manufacturer's warranty.

Features:

Passive aviation and communication headset

Closed Around-the-Ear / Circumaural design

Passive noise attenuation from more than 10 dB up to 40 dB

No batteries required

High-quality dynamic transducers

Excellent speech intelligibility

MKE 45-1 electret microphone

Noise-compensated, unidirectional microphone

Flexible microphone boom

Microphone can be worn on the left or right side

Extra-soft ear pads

Padded headband

Volume control on the headset

Switchable Mono/Stereo operation

Approx. 1.85 m connection cable

Open, pre-tinned cable ends

No connectors installed

Suitable for custom connector installation

Weight approx. 350 g without cable

5-year manufacturer's warranty

Technical Specifications:

Model: Sennheiser HME 110 C3

Sennheiser Article No.: 507280

Application: Aviation / ATC / Custom Communication Systems

Noise reduction: Passive

Passive noise attenuation: >10 to 40 dB

Design: Closed / Circumaural / Around-the-Ear

Headphone transducer principle: Dynamic

Headphone frequency response: 45 – 15,000 Hz

Nominal impedance: 150 Ohms Mono / 300 Ohms Stereo

Maximum sound pressure level: 120 dB SPL

Total harmonic distortion: < 1%

Nominal power handling: 200 mW

Contact pressure: approx. 10 N

Microphone: MKE 45-1 electret microphone

Microphone characteristic: Noise-compensated / Unidirectional

Microphone frequency response: 100 – 5,000 Hz

Microphone output voltage: 40 mV/Pa ±1 dB at 1 kHz

Microphone supply voltage: 8 – 16 V DC

Recommended microphone load impedance: 150 – 2,200 Ohms

Volume control: Yes

Mono/Stereo switch: Yes

Connection: Open, pre-tinned cable ends

Cable length: approx. 1.85 m

Weight without cable: approx. 350 g

Operating temperature: -10 °C to +55 °C

Storage temperature: -55 °C to +70 °C

Manufacturer's warranty: 5 years

Important Connection Information:

The Sennheiser HME 110 C3 is supplied without installed connectors. The approximately 1.85 m cable terminates in open, pre-tinned wires and is intended for custom connector installation.

Before installing a connector or connecting the headset to a communication system, the pin assignment, impedance and electrical requirements of the respective system must be verified.

Scope of Delivery:

Sennheiser HME 110 C3 Headset

Connection cable with open, pre-tinned cable ends

Cable clip

Connector plugs are not included.

The Sennheiser HME 110 C3 is particularly suitable for professional users and installations requiring a reliable passive headset with a custom-configurable connection. The combination of a closed over-ear design, effective passive noise attenuation, MKE 45-1 electret microphone and 1.85 m cable with open ends allows flexible integration into a wide range of aviation and communication systems.