
HMD 46 HME 46
HME 46-3S

Instruction manual
Safety instructions
- Please read this instruction manual carefully and completely before using the headset.
- Make this instruction manual easily accessible to all users at all times.
- Always include this instruction manual when passing the headset on to third parties.
- The headset is capable of producing sound pressure levels exceeding 85 dB(A). In many countries 85 dB(A) is the maximum legally permissible level for continuous noise exposure during the working day. Exposure to sounds of higher volume levels or for longer durations can permanently damage your hearing!
- Never repair or attempt to repair a defective headset yourself. Contact your Sennheiser partner or the Sennheiser Service Department.
- Only replace those parts of the headset whose replacement is described in this instruction manual. All other parts of the headset ust be replaced by your Sennheiser agent.
- Protect the headset from humidity. Use only a soft, dry cloth to clean the headset. For information on how to clean the headset, contact your Sennheiser partner.
Intended use of the headset
Intended use includes:
- having read this instruction manual especially the chapter “Safety instructions”.
- using the headset within the operating conditions as described in this instruction manual.
Improper use
Improper use means using the headset other than as described in this instruction manual, or under operating conditions which differ from those described herein.
HMD 46 / HME 46 / HME 46-3S
The HMD 46 / HME 46 / HME 46-3S headset features dynamic, open headphones. The noise-compensating microphone ensures excellent speech transmission even in noisy environments. Designed for air traffic control, intercom systems and other communication purposes.
Features
- Extremely lightweight
- Extremely comfortable to wear due to the patented two-piece automatic headband and soft ear pads
- ActiveGardTM safeguards you from the effects of an acoustic burst (except HMD 46-31 and HME 46-31)
- “Flip-away” headphone allows single-sided listening
- Flexible microphone boom can be worn on either left or right-hand side
- Noise-compensating microphone ensures excellent speech transmission
- Single-sided cable, easy to exchange
Package contents
1 HMD 46 / HME 46 / HME 46-3S headset
1 cable clip
1 wind and pop screen
1 instruction manual
Operation
Putting on the headset
When putting on the headset, the patented two-piece headband adjusts automatically.

Flipping away one ear cup
The headset features a “flip-away” ear cup for single-sided listening.

Positioning the microphone
Bend the flexible microphone boom so that the microphone is placed at the corner of the mouth. Maintain a distance of 2 cm between microphone and mouth.

Turning the microphone boom
The microphone boom can be rotated. This allows the headset to be worn with the microphone boom positioned on either the left or right-hand side of the head.

Adjusting the volume directly on the audio system
CAUTION!
Hearing damage due to high volumes!
This headset is capable of producing high sound pressure levels. Higher volumes or longer durations can damage your hearing!
- Set the volume to a medium level. Make sure that you can hear critical sounds such as warning alarms.
Connect the headset to the corresponding sockets of your audio system. Adjust the volume directly on the audio system.
Adjusting the microphone sensitivity
The microphone sensitivity has been factory preset to 80 mV/Pa. You can change the microphone sensitivity by turning a small screwdriver in the direction of the arrow.

Care and maintenance
Cleaning the headset
CAUTION!
Liquids can damage the product!
Liquids entering the product can short-circuit the electronics or damage the mechanics. Solvents or cleansing agents can damage the surface of the product.
- Keep all liquids far away from the product.
- Before cleaning, pull out the plugs of the product from the connections in the aircraft.
- Only use a soft, dry cloth to clean the product.
Replacing the ear pads
For reasons of hygiene, you should replace the black ear pads annually. Grasp the edge of the earpad behind the ear cup and peel it up and away from the ear cup. Slide the new earpad onto the ear cup. Repeat for the other ear cup.

Accessories and spare parts
By changing the cable, you can simply retrofit your headset (see “Product variants” on page 10).
| • Cable -6 • Cable -7 • Cable -H-6 • Cable -H-6-1 • Cable -L • Cable -PTT-6 • Cable -PTT-6-1 • Cable -PTT-H-PJ7-10 • Cable -PTT-H-PJ7-15 • Cable -PTT-H-PJ7-25 • Cable -PTT-L • Cable -PTT-LA • Cable D-3PTT-M • Hygiene pads HZH 46, 200 pairs | Cat. No. 500836 Cat. No. 502360 Cat. No. 502533 Cat. No. 502832 Cat. No. 502365 Cat. No. 500844 Cat. No. 502418 Cat. No. 504019 Cat. No. 504021 Cat. No. 504023 Cat. No. 500845 Cat. No. 502187 Cat. No. 500930 Cat. No. 502194 |
Spare parts
- Headband padding, 1 pair
- Ear pads, 1 pair
- Ear pads, 100 pairs
- Wind and pop screen for BKE 46, 1 item
- Wind and pop screen for BKE 46, any number of items
- Wind and pop screen for BMD 46, any number of items
- Cable clip HZC 08
- Cable clip HZC 09
Cable clips

Product variants
| Variant (Cat. No.) | Description | Single-sided round cable |
| HMD 46-3 (500849) | Headsets with dynamic microphone | – |
| HMD 46-31 (502483) | – | |
| HMD 46-3-6 (500466) | with open ends, length 1.85 m | |
| HME 46-3 (500857) | Headsets with condenser microphone | – |
| HME 46-31 (502484) | – | |
| HME 46-3-6 (500467) | with open ends, length 1.85 mm | |
| HME 46-3PTT-6 (500468) | with PTT button and open ends, length 1.85 m | |
| HME 46-3PTT-LA (502172) | with LEMO connector FHG.2B.310.CLAD52Z, length 2.30 m | |
| HME 46-ATC (500851) | with LEMO connector FFP.3S.310.CLA.252A, length 2 m | |
| HME 46-DCN (504286) | with 5-pin DIN connector, length 2 m | |
| HME 46-3S (502592) | Single-sided headset with condenser microphone | – |
Cable and connector assignment
Headset connector

Cable -6
![]() | white | Audio Hi left |
| orange | Audio Hi right | |
| brown | Audio Lo left | |
| green | Audio Lo right | |
| yellow | not assigned | |
| red | Microphone Hi | |
| blue | Microphone Lo | |
| Screen | Screen |
Cable -7 (steel wire cable)
![]() Designed for 2-connector variants | yellow | Audio Hi left |
| red | Audio Hi right | |
| gray | Audio Lo left | |
| blue | Audio Lo right | |
| red | Microphone Hi | |
| blue | Microphone Lo | |
| Screen | Screen |
Cable -H-6
![]() | white | Audio Hi left |
| orange | Audio Hi right | |
| brown | Audio Lo left | |
| green | Audio Lo right | |
| red | Microphone Hi | |
| blue | Microphone Lo | |
| Screen | Screen |
Cable -H-6-1
![]() | white | Audio Hi left |
| orange | Audio Hi right | |
| brown | Audio Lo left | |
| green | Audio Lo right | |
| red | Microphone Hi | |
| blue | Microphone Lo | |
| Screen | Screen |
Cable -L
Solder side

| 1 Audio Hi right 2 Audio Lo right 3 not assigned 4 Screen 5 Audio Hi left | 6 Audio Lo left 7 Microphone Hi 8 Microphone Lo 9 Bridge to pin 10 10 Bridge to pin 9 |

Cable -PTT-6
![]() | white | Audio Hi left |
| orange | Audio Hi right | |
| brown | Audio Lo left | |
| green | Audio Lo right | |
| yellow | PTT | |
| black | PTT | |
| red | Microphone Hi | |
| blue | Microphone Lo | |
| Screen | Screen Screen |
Cable -PTT-6-1
![]() | white | Audio Hi left |
| orange | Audio Hi right | |
| brown | Audio Lo left | |
| green | Audio Lo right | |
| yellow | PTT | |
| black | PTT | |
| red | Microphone Hi | |
| blue | Microphone Lo | |
| Screen | Screen Screen |
Cable -3PTT-L
Solder side

| 1 Audio Hi left 2 Audio Lo left 3 PTT 4 PTT (bridge to pin 10) 5 Audio Lo right | 6 Audio Hi right 7 Microphone Hi 8 Microphone Lo 9 Screen 10 PTT (bridge to pin 4) |

Cable -3PTT-LA
Solder side

| 1 Audio Hi right 2 Audio Lo right 3 PTT 4 PTT / screen/ bridge to pin 9 5 Audio Hi left | 6 Audio Lo left 7 Microphone Hi 8 Microphone Lo 9 Bridge to pin 4 / PTT / screen 10 75-Ω resistor between pin 4 and 10 / screen |

Cable -D-3PTT-M
Solder side

| 1 Audio Hi 2 Audio Lo 3 Microphone Hi 4 not assigned | 5 not assigned 6 PTT 7 PTT / screen 8 Microphone Lo |

Cable -DCN
Solder side

| 1: Microphone Hi 2: Microphone Lo 3: Audio Hi left | 4: Audio Lo 5: Audio Hi right 6: Screen |

Cable -PTT-H-PJ7-xx
xx = 10 / 15 / 25

| Connectors pin alignment | CANADIAN ATC Switch position = 1 | INTERNATIONAL ATC Switch position = 2 |
| 1 | Audio + | Mic + |
| 2 | Audio – | Mic – |
| 3 | Mic + | PTT + |
| 4 | Mic – | PTT – / Screen |
| 5 | PTT + | Audio + |
| 6 | PTT – / Screen | Audio – |
Specifications
HMD 46-3 and HMD 46-31
Headphones
| Transducer principle | dynamic, open |
| Ear coupling | supra-aural |
| Frequency response | 20–14,000 Hz |
| Impedance | 300 Ω |
| Characteristic SPL at 1 kHz, 1 mW, mono | 95 dB SPL |
| at 1 kHz, 1 V | HMD 46-3: 83 dB SPL HMD 46-31: 103 dB SPL |
| THD (350–3,000 Hz) | < 1% at 95 dB SPL |
| Contact pressure | approx. 3 N |
Microphone
| Type | BMD 46-413 |
| Transducer principle | dynamic, noise-compensating |
| Frequency response | 100–12,000 Hz |
| Output voltage | 0.5 mV/Pa |
| Impedance | 200 Ω |
General data
| Ambient temperature | operation: –15°C to 55°C storage: –55°C to 70°C |
| Weight without cable | approx. 150 g |
HME 46-3, HME 46-31 and HME 46-3S
Headphones
| Transducer principle | dynamic, open |
| Ear coupling | supra-aural |
| Frequency response | 20–14,000 Hz |
| Impedance | 300 Ω |
| Characteristic SPL at 1 kHz, 1 mW, mono | HME 46-3/HME 46-31: 95 dB SPL HME 46-3S: 98 dB SPL |
| at 1 kHz, 1 V | HME 46-3: 83 dB SPL ME 46-31: 103 dB SPL HME 46-3S: 97 dB SPL |
| THD (350–3,000 Hz) | HME 46-3/HME 46-31: < 1% at 95 dB SPL HME 46-3S: < 1% at 98 dB SPL |
| Contact pressure | approx. 3 N |
Microphone
| Type | BKE 46 |
| Transducer principle | pre-polarized condenser microphone, noise-compensating |
| Frequency response | 100–15,000 Hz |
| Output voltage | adjustable from 17–100 mV/Pa, 80 mV/Pa -2 dB factory preset: 800 mV -2 dB at 114 dB SPL HME 46-3PTT-LA, -ATC: adjustable from 17–215 mV/Pa, 152 mV/Pa -2 dB factory preset: 152 mV -2 dB at 114 dB SPL |
| Impedance | 150–2,200 Ω |
| Supply voltage | 8–16 V DC |
General data
| Ambient temperature | operation:–15°C to 55°C storage:–55°C to 70°C |
| Weight without cable | HME 46-3/HME 46-31: approx. 150 g HME 46-3S: approx. 110 g |
HME 46-DCN
Headphones
| Transducer principle | dynamic, open |
| Ear coupling | supra-aural |
| Frequency response | 20–14,000 Hz |
| Impedance | 300 Ω |
| Characteristic SPL | 95 dB SPL at 1 kHz, 1 mW, mono 103 dB SPL at 1 kHz, 1 V |
| Max. SPL | > 125 dB SPL at 1 kHz |
| THD (350–3,000 Hz) | < 1 % at 110 dB SPL |
| Contact pressure | approx. 3 N |
Microphone
| Type | BKE DCN |
| Transducer principle | pre-polarized condenser microphone |
| Pick-up pattern | cardioid |
| Frequency response | 100–15.000 Hz |
| Output voltage | 10 mV/Pa |
| Impedance | min. 2 k W |
| Supply voltage | 2–10 V DC |
| Power consumption | max. 0,5 mA (at 4,5 V DC/1 k Ω) |
General data
| Ambient temperature | operation: –15°C to 55°C storage: –55°C to 70°C |
| Cable length | approx. 2 m |
| Weight without cable | approx. 150 g |
Manufacturer declarations
Warranty
Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this product.
For the current warranty conditions, please visit our website at www.sennheiser.com or contact your Sennheiser partner.
In compliance with the following requirements
- RoHS Directive (2002/95/EC)
CE Declaration of Conformity
- EMC Directive (2004/108/EC)
The declaration is available at www.sennheiser.com.
In compliance with:
| Europe | |
| China |
![]()
Sennheiser electronic GmbH & Co. KG Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com
Printed in Germany, Publ. 08/12, 515803/A07
























