USER MANUAL — MH40 OVER EAR HEADPHONES

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SOUND TOOLS FOR CREATIVE MINDS

Our obsession is the interaction between sound and creativity.
Our passion is building beautifully designed, technicallysophisticated sound tools for creative minds.
Our MH40 Over Ear Headphones are designed to be the modern
thinking cap, a tool to help you focus and tune into your work
while tuning out the world around you.

DESIGNED FOR DECADES OF USE

Our headphones are designed to be an essential part of youreveryday creative toolkit that can stand up to decades of use.
They are built with the creative workspace in mind, intended asa permanent fixture on your desk, workbench, or table.
Our headphones are constructed of a forged aluminum body, andutilize stainless steel components in all high strain areas. Areas
subject to heavy wear, such as cables and ear pads, are built to lastand be easily replaced as needed. All metals are anodized or PVD
coated, not painted. We separated the microphone from the remote
for increased vocal clarity and reduced noise, removing the need tohold the remote while you speak on the phone.

APPOINTED WITH THE FINEST MATERIALSOur headbands are constructed with a premium grain cowhide on
the exterior surface and lined with a soft lambskin. The ear pads
are memory foam, wrapped in lambskin, providing superior comfort
and breathability.
Our heavy-duty woven cables utilize oxygen-free copper to ensure
pure sound and reduced noise. All headphones include a genuine
leather box to store your extra cables and accessories, as well asa canvas carrying case with a soft interior lining.

A RICH, WARM SOUND

We sought a rich, warm sound signature from our custom 45mm
neodymium drivers. An expansive soundscape that perfectly
captures the exceptional detail that well recorded music has tooffer. Our tuning is designed to accommodate a diversity of tastes
and musical genres.

OVERVIEW

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6 Stainless Steel Components
including: Earcup Harness,Hinge, Adjustment Post

2 Removable/Replaceable
Memory Foam Ear Pads
with Lambskin Covering

7 Mute Button (Pressin to mute. Press againto unmute)

3 Forged Aluminum Body

8 Premium Leather Inlay

4 Audio Input /Output:
3.5mm Cable Jack

9 Audio Input /Output: 3.5mm
Cable Jack for Audio Sharing

5 Adjustment Post

10 Magnetized Ear Pads

61021 Premium Grain
Leather Headband
with Lambskin InteriorLR37849SPECSDIMENSIONSIMPEDANCE

200mm x 185mm x 50mm

32 ohms

WEIGHT

DRIVERS

360g

45mm Neodymium
High-Performance
Drivers

SOUND PROFILE
Dynamic, Closed

MIC AND REMOTE

ACCESSORIES
1.45 m

M&D

M&D

2.00 m
The microphone is separated from the remoteand placed closer to your mouth for increased
vocal clarity and reduced noise.

M&D

M&D

3.5/6.3mm
Gold-Plated Adapter

M&D

Headphone PlugRemote for use with Apple products.

CanvasHeadphoneCase

1.45 mM&D

2.00 mvolume uppress 1x | to answer a call, or to hang uppress 1x | to play or pause audio
quickly press 2x | to skip forward
quickly press 3x | to skip backward

M&D

Source M&D
Plug M&D

1.45 mCable 01: 1.25m Cable
with Remote & Mic

M&D
M&D
Headphone
PlugLeather
Cable Box

2.00 mM&D

M&D

volume down
SourcePlug

Cable 02: 2.0m
Straight CableADJUSTABILITY | FIT | COMFORTEarcups fold flat for storage.

Adjust earcup postto find optimal fit.

AUDIO SHARINGCHANGING/REMOVING EAR PADS

Serial Number
XXXXXXXXXXXX
No.MH40

DM&DM&M&D

RIGHT EARCUP

M&D

Ear pads are magnetized for easy removal/replacement. Simply grab
the outside ring of the ear pad and remove. Reattach ear pads byaligning the three guide posts on the earcup with the three guide holeson the inside of the ear pad.

We designed our headphones
with a 3.5mm input /output on
both earcups. You can connect
your source into either earcup.

If you wish to share yourlistening experience, simply plug
another pair of headphones
into the available earcup jack.

MAINTENANCE AND TROUBLESHOOTING

Clean ear pads and headphones
with soft, slightly damp cloth.
Do not soak, submerge or allow
moisture to enter near thedrivers or cable jacks. Ear pads
and cables can be purchased ifthey are worn out at:
www.masterdynamic.com

No Sound:• Check to make sure all plugs
are fitted completely into theirjacks, both in the headphones
and at the audio source.

Do not drop, sit on, or allow
the headphones to be exposed
to water, moisture, ortemperature extremes.

• Check cable for signs ofextreme wear or test anothercable to see if cable is damaged.

It is recommended that you
return your headphones totheir storage case when notin use. To avoid damage, do
not store other items in thecanvas case along with yourheadphones.
CAUTION: Incorrectly rotatingor over rotating the earcups
can damage the headphones.

• Check source device to makesure sound is coming out.

• Check to make sure Mute
Button is disengaged.
Remote not working:• Check to ensure that source
plug is inserted into audio
device and headphone plug isinserted into earcup.

HEARING HEALTH AND FITNESS

Our ability to hear is amazing. Treat your ears like the precious tools
they are, and they will continue to provide you with exceptional data,
as well as a lifetime of incredible sonic experiences.
In general, do not listen “too loud or for too long,” and be attentive
to your own ears. Ringing, discomfort, or sensitivity to highfrequencies and treble may be a signal from your ears that you arepushing them to their limits and causing damage.
As a general practice, find what seems to be your preferred
listening level and then adjust the volume down another 10% ormore. Surprisingly, your ears will attune to a slightly lower volume
over time, and what seems quiet at first can be perfect for longer
listening periods.
If your co-workers (3 – 10 feet away) are always singing along orcommenting on your music choices, chances are good you may belistening too loud. See an audiologist to have your hearing tested.
If you are interested in tuning your ear to have a more refinedsonic palate, there are some apps and training programs you canfind online.

PREVENTION OF NIHL (NOISE INDUCED HEARING LOSS)NIHL is a preventable condition caused by both one-time andextended exposure to excessive decibel (dB) levels. This harm tosensitive inner ear structures is irreversible and people of all ages
can be affected. Damage can happen in a single event or gradually
over time. One-time exposure to sounds louder than 110 decibels
and extended exposure to sounds over 85 decibels can cause harm.
Indicators of NIHL include hearing loss and tinnitus, a condition ofsensing constant ringing, buzzing or roaring. The NIDCD (NationalInstitute on Deafness and Other Communication Disorders) offers
this simple rule of thumb: avoid sound exposure that is “too loud,too close or too long.” Here are some general references to soundlevels that occur in everyday life: refrigerator humming (45 dB);
normal conversation (60 dB); city traffic (85 dB); motorcycles(95 dB); an MP3 player at full volume (105 dB); sirens (120 dB);
firecrackers (150 dB).

WARRANTY AND CUSTOMER SERVICE
Master & Dynamic guarantees this product against defects inmaterials or workmanship for a period of two years from the dateof original purchase from an authorized Master & Dynamic retailer
or reseller. Master & Dynamic will either repair or replace thedefective product at our discretion if the product is returned within
the warranty period.
This limited warranty is in lieu of all other warranties, expressedor implied, including, but not limited to, any implied warranty ofmerchantability or fitness for a particular purpose.
Master & Dynamic shall have no liability of any kind for any direct,
indirect, incidental or consequential damages or expenses
that arise from the use of this product. Master & Dynamic does
not cover normal wear and tear, blown drivers, cut cords,
bent jacks, torn headbands, loss or theft. You will void thiswarranty if you disassemble your headphones or expose themto excessive moisture.
If you believe this product is defective within the warranty period,
contact us via our support page at www.masterdynamic.com/support.
Once your warranty is verified, you will be issued a return
authorization and instructions for return shipment. Proof ofpurchase may be required. Products with unreadable or removed
serial numbers will not be covered.
For questions regarding your product’s warranty, contact
Master & Dynamic Support at support@masterdynamic.com.

MH40-M-051614

The remote and mic are supported only by iPhone 3GS or later, iPad, iPod touch (2nd generation or later),
iPod classic (120GB, 160GB), and iPod nano (4th generation or later). The remote is supported by iPodshuffle (3rd generation or later). Audio is supported by all iPad and iPod models.

Designed and Developed by New Audio LLC
New York, NY 10001. Made in China.

“Made for iPod,” “Made for iPhone,” and “Made for iPad” mean that an electronic accessory has been
designed to connect specifically to iPod, iPhone, or iPad, respectively, and has been certified by thedeveloper to meet Apple performance standards. Apple is not responsible for the operation of this device
or its compliance with safety and regulatory standards.

© Copyright 2014 New Audio LLC. All rights reserved. Master & Dynamic,
the Stylized M logo and Sound Tools for Creative Minds are trademarksof New Audio LLC. Patents Pending.

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