Sennheiser Aviation
HMEC 46
Article No. 502180
MSRP:$621.00
cockpit headset, pilot, aviation, aircraft, aeroplane
General Description
The HMEC 46 combines the latest audio technology with superb comfort. The NoiseGard™ active noise compensation reduces cockpit noise by approx. 15 dB so you don't need to have the radio as loud. The HMEC 46 headsets incorporate peak level protection which safeguards your ears from volume peaks in the headphones above 110 dB. The new headsets are available with all common plug configurations and as battery or aircraft powered variants.
Features
- Noise reduction of approx. 15 dB – consequently the radio volume can be decreased
- Extremely lightweight
- Superb comfort due to the patented two-piece automatic headband and soft ear pads
- "Flip-away" headphone allows single-sided listening
- Flexible microphone boom, can be worn on either left or right-hand side
- Noise-compensating condenser microphone ensures excellent speech transmission
- Volume peaks in the headphones above 110 dB are eliminated
- Single-sided cable, easy to replace
- Also available with volume control
- ETSO/TSO approval C57a/C58a
- 5 years warranty
- A lightweight Open-aire headset for use in commercial or corporate cockpits.
Delivery Includes
- HMEC 46 headset
- Carrying bag for headset
- MZW 46 wind and pop screen
- Cable clip
- User manual
- EASA Form 1
Related Products
MSRP:$621.00
cockpit headset, pilot, aviation, aircraft, aeroplane
Technical Data
| 93 dB SPL (1 kHz, 1 mW) / 95 dB SPL (1 kHz, 1 V) | |
| Single-sided round cable, length approx 6 ft. (1.8 m) | |
| Approx. 3 N | |
| On-the-ear, open | |
| 12 - 14,000 Hz | |
| 350 - 6,000 Hz | |
| > 15 dB (300 - 700 Hz) | |
| 600 Ω mono / 1,200 Ω stereo | |
| -15°C... +55°C | |
| 8 - 16 V DC | |
| 17-100 mV/Pa adjustable, 400 mV at 114 dB SPL / 40 mV/Pa (factory preset) | |
| -55°C... +70°C | |
| < 1% - 110 dB SPL (300 - 3,000 Hz) | |
| Dynamic | |
| MKE 46 pre-polarized condenser microphone (electret), noise-compensating, integrated pop noise reduction | |
| Approx. 5.3 oz. (150 g) |
Control Unit
MSRP:$621.00
cockpit headset, pilot, aviation, aircraft, aeroplane
Recommended Accessories
| Part/Accessory | Article No. |
|
Audio cable, 3.5 mm jack |
|
|
Cell phone cable, 2.5 mm jack |
|
|
Ear pads (1 pair) HME46/HMEC46 |
|
|
100 pieces |
|
|
Ear pads for HMEC 4xx |
|
|
Headband padding (1 pair) 46 and 26 series |
|
|
Cable Clip |
|
|
Hygiene pads - 200 pair per master carton |
|
|
Windscreen for 46 and 26 series (bulk pack) |
|
|
Windscreen for 46 and 26 series (1 pair) |
|
MSRP:$621.00
cockpit headset, pilot, aviation, aircraft, aeroplane
Variants
| HMEC 46-1 P/N 046-35-1 | |||
| Headset without cable | |||
| HMEC 46-1-BV-K P/N 046-35-1-999-1171 | |||
| With jack plugs and volume control, NoiseGard™ power supply from batteries | |||
| HMEC 46-1-B-K P/N 046-35-1-999-1191 | |||
| With jack plugs, NoiseGard™ power supply from batteries | |||
| HMEC 46-1-B-CP P/N 046-35-1-999-2291 | |||
| With XLR-5 connector, NoiseGard™ power supply from batteries or aircraft DC power supply system | |||
| HMEC 46-1-BV-CP P/N 046-35-1-999-2281 | |||
| With XLR-5 connector and volume control, NoiseGard™ power supply from batteries or aircraft DC power supply system | |||
| HMEC 46-1-KP P/N 046-35-1-999-3111 | |||
| With jack plugs, NoiseGard™ power supply from aircraft DC power supply system | |||
| HMEC 46-1-V-KP P/N 046-35-1-999-3161 | |||
| With jack plugs and volume control, NoiseGard™ power supply from aircraft DC power supply system | |||
| HMEC 46-1-CP P/N 046-35-1-999-3211 | |||
| With XLR-5 connector, NoiseGard™ power supply from aircraft DC power supply system. 28 V aircraft only. Complies with FAA/JTSO-C57a & C58a. | |||
| HMEC 46-1-V-CP P/N 046-35-1-999-3251 | |||
| With XLR-5 connector and volume control, NoiseGard™ power supply from aircraft DC power supply system | |||
| HMEC 46-1-NP P/N 046-35-1-999-3811 | |||
| With 8-pin Neutricon connector, NoiseGard™ power supply from aircraft DC power supply system | |||
| HMEC 46-1-V-RP P/N 046-35-1-999-3661 | |||
| With 6-pin Redel connector, and volume control, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-B-K P/N -999-1191 | |||
| With jack plugs, NoiseGard™ power supply from batteries | |||
| Cable-BV-K P/N -999-1171 | |||
| With jack plugs and volume control, NoiseGard™ power supply from batteries, audio-in and cell-phone-in | |||
| Cable-B-CP P/N -9992291 | |||
| With XLR-5 connector, NoiseGard™ power supply from batteries or aircraft DC power supply system | |||
| Cable-BV-CP P/N -999-2281 | |||
| With XLR-5 connector, NoiseGard™ power supply from batteries | |||
| Cable-KP P/N -999-3111 | |||
| With jack plugs, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-V-KP P/N -999-3161 | |||
| With jack plugs and volume control, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-CP P/N -999-3211 | |||
| With XLR-5 connector, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-V-CP P/N -999-3251 | |||
| With XLR-5 connector and volume control, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-NP P/N -999-3811 | |||
| With 8-pin Neutricon connector, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-V-RP P/N -999-3661 | |||
| With 6-pin Redel connector and volume control, NoiseGard™ power supply from aircraft DC power supply system | |||
| Cable-V-KX P/N -999-4161 | |||
| With jack plugs and volume control, NoiseGard™ power supply from aircraft DC power supply system through XLR-3 connector | |||
| Cable-B-KP P/N -999-2191 | |||
| With jack plugs, NoiseGard™ power supply from batteries or aircraft DC power supply system | |||
| Cable-BV-KP P/N -999-2171 | |||
| With jack plugs and volume control, NoiseGard™ power supply from batteries or aircraft DC power supply system, audio-in and cell-phone-in | |||
Glossary
| Connection cable |
| When one speaks about headphones, the emphasis is on such things as sound quality and frequency response. There is rarely any mention of the connection cable. Most Sennheiser headphones are fitted with an OFC (oxygen-free copper) cable. This ensures linear and low-loss transmission in the broad frequency spectrum of the headphones. Many Sennheiser headphones also have detachable cables, which make it very easy to replace them. |
| Contact pressure |
| The wearing comfort of a set of headphones is determined not only by its weight but also by the force with which the earpieces are pressed onto the ears. This force is given in newtons (N), whereby 1 N corresponds to the compressive force which a mass of about 100 g exerts on a solid surface. The DIN Standard 45500 Part 10 limits the maximum permissible contact force to 5 N. Values of between 1.3 and 4 N are common, although lower values apply for open headphones. Higher values can be found in the case of closed headphones. Here, a higher contact pressure is required in order to achieve sufficient sealing, which is important for the reproduction of low frequencies. |
| Ear coupling |
| A distinction is made between headphones which are worn on the external ear (supra-aural) and those which surround the ear (circumaural). Open headphones have foam ear pads that rest on the ears or ring pads that surround the ears. Closed headphones, on the other hand, nearly always have circumaural ear pads. |
| Frequency response (headphones) |
| The frequency response of a pair of headphones is given within limits defined by the manufacturer. |
| Frequency response (microphone) |
| The frequency response of a microphone is given within the limits defined by the manufacturer. In studio condenser microphones it is generally within the range of between 20 Hz and 20 kHz. |
| NoiseGard™ noise compensation |
| NoiseGard™ is an active noise compensation system which Sennheiser originally developed for use by pilots, who have to rely on good sound quality even in high-noise environments. NoiseGard™ actively compensates the noise, based on the physics principle of sound and counter-sound, which works as follows: tiny microphones pick up the low-frequency ambient noise in the vicinity of the user’s ear. Based on that noise interference, the NoiseGard™ electronic module calculates the required sound wave with 180° phase inversion. The unwanted noise and the phase-inversed sound wave meet directly at the user’s ear where they virtually cancel each other out. The result is an effective reduction in ambient noise. The music is transmitted in the same high quality, so that even quiet passages can be enjoyed in noisy environments. |
| Nominal impedance |
| See impedance. |
| Operating temperature |
| Gives the range of temperatures at which a unit can be operated without damage. |
| Operating voltage (stand alone) |
| Voltage type and level required for powering a unit. |
| Output voltage |
| The (signal) voltage which a unit supplies at its output. |
| Storage temperature |
| Gives the range of temperatures at which a unit can be stored without damage. |
| Total harmonic distortion (THD) |
| Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%. |
| Transducer principle |
| Two transducer principles have become established for the conversion of electric energy into mechanical energy: electrodynamic and electrostatic transducers, whereby the latter is only to be found in audiophile systems, due to their relatively high manufacturing costs. Electrodynamic transducers basically consist of a ring-shaped permanent magnet and an oscillation coil, which is fixed to the receiver diaphragm. When an audio-frequency alternating current is passed through the oscillation coil, it is caused to vibrate in accordance with the audio-frequency alternating current, thus causing the diaphragm to vibrate in the same way. |
