Sennheiser HMD 26-II User manual

Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com
Printed in Germany, Publ. 12/15, 552002/A02
HME 26-II
HD 26 PRO
HMD 26-II
Broadcast
HMDC 26-II
HMD 26-II HMDC 26-II HME 26-II HD 26 PRO
Umschlag mit Rücken.indd 2-4 29.11.2012 09:35:06

Important safety instructions
1
Important safety instructions
• Please read this instruction manual carefully and com-
pletely before using the product.
• Make this instruction manual easily accessible to all users
at all times.
• Always include this instruction manual when passing the
product on to third parties.
• The product 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 perma-
nently damage your hearing.
• Never repair or attempt to repair a defective product
yourself. Contact your Sennheiser partner or the
Sennheiser Service Department.
• Only replace those parts of the product whose replace-
ment is described in this instruction manual. Only use
attachments, accessories or spare parts specified by
Sennheiser. All other parts of the product must be
replaced by your Sennheiser agent.
• Protect the product from humidity. Use only a dry cloth to
clean the product. For information on how to clean the
headset, contact your Sennheiser partner.

Important safety instructions
2
Intended use
Intended use includes :
• having read and this instruction manual, especially the
chapter “Important safety instructions”.
• using the product within the operating conditions and
limitations described in this instruction manual.
Improper use
Improper use means using the product other than as
described in this instruction manual, or under operating con-
ditions which differ from those described herein.

The 26-II headset series and the HD 26 PRO headphones
3
The 26-II headset series
and the HD 26 PRO headphones
The HMD 26-II/HME 26-II/HMDC 26-II headsets and the
HD 26 PRO headphones feature dynamic, closed head-
phones. The noise-compensating microphone of the
HMD 26-II and HMDC 26-II ensures excellent speech trans-
mission even in noisy environments.
The headsets have been designed for broadcast use, e.g. for
outdoor broadcast or broadcast van applications. The
HMDC 26-II features NoiseGard™ professional active noise
compensation. The HME 26-II is available with an omni-direc-
tional or a cardioid microphone, making it suitable for either
outdoor or studio use.
Features
• Lightweight
• Extremely comfortable to wear, even for extended lis-
tening, due to the patented two-piece automatic head-
band and soft ear pads
• ActiveGard™ (switchable) safeguards you from volume
peaks above 105 db (HME 26-II/HMD 26-II/HD 26 PRO)
• NoiseGard™ professional active noise compensation
reduces ambient noise by up to 18 db (HMDC 26-II)
• “Flip-away” headphone allows single-sided listening

Package contents
4
• Detailed, linear sound reproduction for demanding appli-
cations
• Flexible microphone boom, can be worn on either left or
right-hand side
• Noise-compensating dynamic microphone ensures excel-
lent speech transmission (HMD 26-II/HMDC 26-II)
• Omni-directional condenser microphone with extremely
linear frequency response (HME 26-II)
• Single-sided cable, easy to replace
Package contents
1HMD26-II / HME 26-II / HMDC 26-II / HD 26 PRO
1 cable clip
1 wind and pop screen (except HD 26 PRO)
1 headband padding, large
1 instruction manual

Operation
5
Operation
Turning the microphone boom
The microphone boom can
be rotated, allowing the
microphone to be worn on
the left or right-hand side of
the head.
Putting on the headset
When putting on the
headset, the patented two-
piece headband adjusts
automatically.

Operation
6
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. Always use the sup-
plied wind and pop screen.
Do not position the microphone directly in front of
your mouth as it will pick up your breathing and
plosive noises from your mouth. In addition, moisture
can adversely affect the sound and performance of
your microphone.
When attaching the
sound inlet basket, make
sure that it locks into
place with an audible
click.
Make sure not to cover
the sound inlet.

Operation
7
Flipping away one ear cup
The headset’s “flip-away” ear cup can be flipped backwards
by approx. 45°, allowing for singled-sided listening.
Connecting the HD 26 PRO headphones to the audio system
왘If necessary, screw the screw-on adapter for ¼“ (6.3 mm)
jack plug onto the 3.5 mm jack plug.
approx. 45°
3.5 mm
6.3 mm

Operation
8
Adjusting the volume on the audio system
Connect the headset to the corresponding sockets of your
audio system.
왘Adjust 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!
왘Set the volume to a medium level. Make sure
that you can hear critical environmental sounds.

Operation
9
Switching ActiveGard™ on and off
(HME 26-II/HMD 26-II/HD 26 PRO)
ActiveGard™ safeguards your ears from volume peaks above
105 db, which can be transmitted via the audio system or
radio equipment.
왘Slide the switch for the ActiveGard™ function to the
desired position by using a pointed object:
Position Function
up ActiveGard™ is switched off
(factory default setting).
down ActiveGard™ is switched on.

Operation
10
Control unit for HMDC 26-II in conjunction with cable -B-7
Switching NoiseGard™ on and off (HMDC 26-II)
The NoiseGard™ ON/OFF switch 1allows you to switch the
NoiseGard™ active noise compensation on or off. With Noise-
Gard™ switched off, the headset can be used as a conven-
tional headset.
왘Set the NoiseGard™ ON/OFF switch 1to the desired
position:
1NoiseGard™ ON/OFF
switch
2LED
Position Function
ON NoiseGard™ is switched on.
The LED 2lights up, indicating the battery charge
status.
OFF NoiseGard™ is switched off.
The LED 2is off.
2
1

Operation
11
Powering NoiseGard™ via two (rechargeable) batteries
왘Insert two 1.5 V AA alkaline batteries (IEC LR 6) or two
1.2 V AA rechargeable batteries (IEC LR 6). Observe
correct polarity when inserting the batteries.
The operating time with batteries/rechargeable batteries
is approx. 60 hours. With NoiseGard™ switched on, the
LED 2provides information on the remaining battery/
rechargeable battery capacity:
LED 2Meaning
lights up yellow The battery capacity is sufficient.
lights up red The batteries are flat. Replace the batteries.

Care and maintenance
12
Care and maintenance
Cleaning and maintaining the headset
왘Only use a soft, dry cloth to clean the product.
Replacing the ear pads
For reasons of hygiene, you should replace the ear pads
annually.
왘Grasp the edge of the ear pad and pull sharply.
왘Attach the new ear pad to the ear cup by pressing firmly
around the ear pad until you hear all 12 latches lock into
place.
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.
왘Keep all liquids far away from the product.

Care and maintenance
13
Replacing the headband paddings
For reasons of hygiene, you should replace the headband
paddings at least once annually.
왘Pull the Ziploc type fastening strips of the old headband
paddings apart.
왘Put the new headband paddings around the headbands.
왘Attach the new headband paddings by joining the fasten-
ings strips.
The tongue and groove of the fastening strips click into
place.

Care and maintenance
14
Cleaning the sound inlet basket
왘Carefully pull the sound inlet basket from the capsule.
왘Moisten a small brush (bristle brush or toothbrush) with
isopropyl alcohol.
왘Carefully brush off the sound
inlet basket.
왘Allow the sound inlet basket to
air dry for approx. 1 hour so
that the remaining isopropyl
alcohol can evaporate.
왘Reattach the sound inlet
basket to the capsule so that it
locks into place with an audible
click.
When attaching the sound inlet
basket, make sure not to cover
the sound inlet.

Specifications
15
Specifications
Headphones
Transducer principle dynamic, closed
Ear coupling supra-aural
Frequency response 20 to 18,000 Hz
Impedance HMD 26-II-600: 300 Ω mono/600 Ωstereo
HMD 26-II-600S: 600 Ω mono
HMD 26-II-100: 50 Ω mono/100 Ωstereo
Characteristic SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz, 1 mW
ActiveGard™ switched off:
HMD 26-II-600/-600S: 107 dB SPL at 1 kHz, 1 V
HMD 26-II-100: 115 dB SPL at 1 kHz, 1 V
Max. SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz
ActiveGard™ switched off:
HMD 26-II-600/-600S: 127 dB SPL at 1 kHz, 200 mW
HMD 26-II-100: 128 dB SPL at 1 kHz, 200 mW
THD < 0,5% at 1 kHz
Contact pressure HMD 26-II-600/-100: approx. 3.9 N
HMD 26-II-600S: approx. 4.0 N
Microphone
Type BMD 424
Transducer principle dynamic, noise-compensating, hyper-cardioid
Frequency response 40 to 16,000 Hz
Output voltage 0.4 mV/Pa at 1 kHz
Impedance 300 Ω
General data
Temperature range operation: –15 °C to 55 °C
storage: –55 °C to 70 °C
Weight without
cable
HMD 26-II-600/-100: approx. 200 g
HMD 26-II-600S: approx. 130 g
HMD 26-II-600/-600S/-100

Specifications
16
HMDC 26-II-600
Headphones
Transducer principle dynamic, closed
Ear coupling supra-aural
Frequency response 20 to 18,000 Hz
Impedance 600 Ω mono/1200 Ωstereo
Characteristic SPL ActiveGard™ switched on:
108 dB SPL at 1 kHz, 1 mW
ActiveGard™ switched off:
110 dB SPL at 1 kHz, 1 V
Max. SPL 120 dB SPL at 1 kHz
Active noise
compensation
≥18 dB (100 to 300 Hz)
Attenuation
(active/passive)
15 to 30 dB
THD < 0.5% at 1 kHz
Contact pressure approx. 3.9 N
Microphone
Type BMD 424
Transducer principle dynamic, noise-compensating, hyper-cardioid
Frequency response 40 to 16,000 Hz
Output voltage 0.4 mV/Pa at 1 kHz
Impedance 300 Ω
General data
Temperature range operation: –15 °C to 55 °C
storage: –55 °C to 70 °C
Weight without cable approx. 210 g
Power supply for Noise-
Gard™
2x 1.5 V AA alkaline battery (IEC LR 6) or
2x 1.2 V AA rechargeable battery (IEC LR 6),
operating time approx. 60 h

Specifications
17
HME 26-II-600/-100
Headphones
Transducer principle dynamic, closed
Ear coupling supra-aural
Frequency response 20 to 18,000 Hz
Impedance HME 26-II-600: 300 Ω mono/600 Ωstereo
HME 26-II-100: 50 Ω mono/100 Ωstereo
Characteristic SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz, 1 mW
ActiveGard™ switched off:
HME 26-II-600: 107 dB SPL at 1 kHz, 1 V
HME 26-II-100: 115 dB SPL at 1 kHz, 1 V
Max. SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz
ActiveGard™ switched off:
HME 26-II-600: 127 dB SPL at 1 kHz, 200 mW
HME 26-II-100: 128 dB SPL at 1 kHz, 200 mW
THD < 0.5% at 1 kHz
Contact pressure approx. 3.9 N
Microphone
Type BKE 4-2
Transducer principle pre-polarized condenser microphone,
omni-directional
Frequency response 40 to 20,000 Hz
Output voltage 4 mV/Pa ±2.5 dB
Max. SPL 150 dB at 1 kHz, 0.5% THD
Terminating impedance min. 4.7 kΩ
Supply voltage 5 to 15 V DC
General data
Temperature range operation: –15 °C to 55 °C
storage: –55 °C to 70 °C
Weight without cable approx. 200 g

Specifications
18
HME 26-II-600(4)/-100(4)
Headphones
Transducer principle dynamic, closed
Ear coupling supra-aural
Frequency response 20 to 18,000 Hz
Impedance HME 26-II-600(4): 300 Ω mono/600 Ωstereo
HME 26-II-100(4): 50 Ω mono/100 Ωstereo
Characteristic SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz, 1 mW
ActiveGard™ switched off:
HME 26-II-600(4): 107 dB SPL at 1 kHz, 1 V
HME 26-II-100(4): 115 dB SPL at 1 kHz, 1 V
Max. SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz
ActiveGard™ switched off:
HME 26-II-600(4): 127 dB SPL at 1 kHz, 200 mW
HME 26-II-100(4): 128 dB SPL at 1 kHz, 200 mW
THD < 0.5% at 1 kHz
Contact pressure approx. 3.9 N
Microphone
Type BKE 4-4
Transducer principle pre-polarized condenser microphone, cardioid
Frequency response 40 to 20,000 Hz
Output voltage 4 mV/Pa ±2.5 dB
Max. SPL 150 dB at 1 kHz, 0.5% THD
Terminating impedance min. 4.7 kΩ
Supply voltage 5 to 15 V DC
General data
Temperature range operation: –15 °C to 55 °C
storage: –55 °C to 70 °C
Weight without cable approx. 200 g

Specifications
19
HD 26 PRO
Headphones
Transducer principle dynamic, closed
Ear coupling supra-aural
Frequency response 20 to 18,000 Hz
Impedance 100 Ωstereo
Characteristic SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz, 1 mW
ActiveGard™ switched off:
115 dB SPL at 1 kHz, 1 V
Max. SPL ActiveGard™ switched on:
105 dB SPL at 1 kHz
ActiveGard™ switched off:
128 dB SPL at 1 kHz, 200 mW
THD < 0.5% at 1 kHz
Contact pressure approx. 3.9 N
General data
Temperature range operation: –15 °C to 55 °C
storage: –55 °C to 70 °C
Weight without cable approx. 180 g