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Valuable information on MM 550-X

MM 550-X 

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apt-X audio coding

Outstanding audio quality

apt-X technology is what wireless audio has been waiting for. With apt-X
audio coding, you can be assured of crisp, pure and full stereo sound. It
allows you to not only hear, but experience and feel the audio as it was
intended. Utilizing apt-X, 

Bluetooth

 can now offer wireless audio quality

that is indistinguishable from the highest quality wired connection.

Professional grade sound

Until now, apt-X has been the best-kept secret of the professional audio
industry. From major public broadcasters to film production studios, apt-X
is used throughout the world to transmit high quality digital audio from
A to Z in real-time. It was developed to meet the exacting standards of
musicians and audio engineers who love the exceptional dynamic range
and high fidelity it provides.

Now available on selected consumer devices, the technology ensures that
music lovers everywhere can stream the rich listening experience that only
apt-X can deliver.

Revolutionizing Bluetooth

listening

Bluetooth

 technology has revolutionized our communications and life-

style by eliminating troublesome wires and letting us get on with life “on
the move”. Listening to a mobile phone conversation on a 

Bluetooth

 ear-

piece sounds just fine but when it comes to delivering full stereo sound,
a little extra help is required. apt-X works within 

Bluetooth

 to deliver

CD quality audio, ensuring you are getting the most from your wireless
listening experience.

In order to deliver two-channel digital sound within the 

Bluetooth

 A2DP

profile, audio compression is necessary. While traditional audio compres-
sion technologies struggle to provide full-bandwidth, high-fidelity audio
over 

Bluetooth

, apt-X works to ensure you enjoy the fullest, richest sound

your music collection has to offer.

apt-X legacy

If you have ever been to the movies or listened to the radio then chances
are you’ll already have heard apt-X in action. Over 20,000 radio stations
across the world and thousands of cutting-edge film studios rely on apt-X
for high quality audio delivery.

The digital compression technology now known as apt-X was originally
developed in Queen’s University, Belfast, Northern Ireland. The technology
was first brought to market for radio automation applications to store CD
quality audio on computer hard drives for direct playout during radio
shows, hence automating the process of the disc jockey.

The acclaim the technology received lead to further research and develop-
ment and throughout the 1990s the technology was used by Broadcast
and Post-production studios worldwide to deliver high-fidelity, low latency
audio in situations where bandwidth was limited. The same core principles
that have earned apt-X worldwide acclaim in the Broadcast and Post-
_Production markets make it the perfect solution for delivering high
quality audio on wireless devices. apt-X is leading the way in bringing pro-
audio quality to the discerning consumer.

Summary of Contents for MM 550-X

Page 1: ...MM 550 X Instruction manual...

Page 2: ...Connecting the MM 550 X using the audio cable 14 Switching the MM 550 X on off 15 Using the MM 550 X 16 Adjusting the MM 550 X to the listening situation 16 Changing the volume 17 Remote controlling c...

Page 3: ...special attention e g in traffic Preventing damage to the product and malfunctions Always keep the product dry and do not expose it to extreme temper atures hairdryer heater extended exposure to sunli...

Page 4: ...ve product Only use battery packs rec ommended by Sennheiser Dispose of the battery pack at special collection points or return it to your specialist dealer Switch battery pack powered products off af...

Page 5: ...in the mixing process to create a more natural audio experience apt X With apt X audio coding you can be assured of crisp pure and full stereo sound It allows you to not only hear but experience and f...

Page 6: ...signals in the immediate vicinity Annoying background noise is electronically filtered out only allowing the voice of the other person to pass through the headset clearly Additional features Great fo...

Page 7: ...MOCBSSAB Canada IC 2099D MMBTX IC 2099D MMBTX IC 2099D MMBTX IC 2099D MMBTX Europe Australia New Zealand Singapore Taiwan CCAB09LP4110XX Japan R 203WWJN000007 Russia ME61 Korea SE9 xxxxxxxx China CMII...

Page 8: ...until the desired setting is made or the desired action is completed Pictogram Meaning This pictogram symbolizes a flashing This pictogram symbolizes an interruption This pictogram symbolizes an inte...

Page 9: ...Headband Bluetooth button Microphone Ear pad NoiseGard button Socket for charging cable SRS button Battery pack compartment Socket for audio cable Microphone A 1 LED 4 Rewind button 2 Fast forward bu...

Page 10: ...When the battery pack is fully charged the LED on the battery pack lights up green When the battery pack is almost flat the LED 1 flashes red You hear a short descending acknowledgement tone The oper...

Page 11: ...set This is helpful if you are using a spare battery pack to be ordered separately To charge the battery pack inside the headset Open the cover of the battery pack compartment on the left ear cup Conn...

Page 12: ...battery pack is being charged The LED on the battery pack lights up red After charging unplug the mains unit from the wall socket If you have charged the battery pack outside the headset Insert the c...

Page 13: ...the headset with a ninth audio source the saved connection profile of the first Bluetooth device will be overwritten If you want to re establish a connection with the first audio source you have to p...

Page 14: ...hes off after 60 minutes In this case repeat the necessary steps to pair the headset with the audio source again Disconnecting the Bluetooth connection The Bluetooth button is backlit indicating the c...

Page 15: ...of the audio cable to the headphone socket of your audio source or the audio adapter for 6 35 mm jack socket if the 3 5 mm jack plug of the audio cable is too small or the in flight adapter if you wan...

Page 16: ...the headset is already paired with an audio source but the audio source is switched off or out of range the LED 1 flashes blue The headset will try for 3 minutes to connect to one of the up to 8 prev...

Page 17: ...ed on To switch the SRS WOW HD sound enhancement off Briefly press the SRS button SRS The yellow backlighting goes off and the SRS WOW HD function is switched off Switching the NoiseGard function on o...

Page 18: ...the Bluetooth button and keep it pressed until the LED 1 flashes 3 times blue The Bluetooth function is switched on To switch the Bluetooth function off Press the Bluetooth button and keep it pressed...

Page 19: ...ur device supports the AVRCP profile Remote controlling the audio source from the MM 550 X If your headset has a Bluetooth connection to an audio source e g mobile phone iPod MP3 or CD player you can...

Page 20: ...ress a button on your mobile phone to transfer the call see the instruction manual of your mobile phone To manage your calls from your MM 550 X press the Master button 5 or the Bluetooth button Redial...

Page 21: ...your MM 550 X press the Bluetooth button Muting the headset s microphone To mute the microphone on your MM 550 X press the the Bluetooth button Button Duration Function Activates voice dialing Deacti...

Page 22: ...et can be folded up flatly and compactly Rotate the ear cups by 90 Fold the ear cups inwards Place the headset flat into the transport case Your accessories can be transported in the front bag of the...

Page 23: ...You can replace the ear pads Spare ear pads are available from your Sennheiser partner or can be ordered at www sennheiser com under Service Support Grasp the edge of the ear pad behind the ear cup an...

Page 24: ...ooth function on the headset is switched off Switch the Bluetooth func tion on the headset on 17 The audio cable is connected to the headset The connection of the audio cable automatically switches of...

Page 25: ...ces with the headset Press the Master button 5 and keep it pressed until the LED 1 flashes 3 times red The headset switches off see Switching the MM 550 X off on page 15 Press the Master button 5 and...

Page 26: ...tery pack Charging time Operating time 3 7 V 250 mAh Lithium Polymer 3 hrs 8 hrs 10 hrs 20 hrs Operating temperature range 0 C to 40 C Storage temperature range 10 C to 70 C Passive noise attenuation...

Page 27: ...ate the mix or fade it backward virtually eliminating the content all together Optimal headphone listening SRS WOW HD includes techniques based on patented HRTFs to deliver a natural non fatiguing hea...

Page 28: ...ithin Bluetooth to deliver CD quality audio ensuring you are getting the most from your wireless listening experience In order to deliver two channel digital sound within the Bluetooth A2DP profile au...

Page 29: ...range of 92 dB for 16 bit audio and 120 dB for 24 bit audio The overall framework of apt X ensures a high degree of resilience to random bit errors with the bit error response well matched to the aud...

Page 30: ...r to protect the environment only dispose of exhausted batteries CE Conformity R TTE Directive 1999 5 EC EMC Directive 2004 108 EC Low Voltage Directive 2006 95 EC ErP directive 2009 125 EC The declar...

Page 31: ...Sennheiser electronic GmbH Co KG Am Labor 1 30900 Wedemark Germany www sennheiser com Publ 12 11 546145 A01...

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