Sony MDR-NC300D Manual

Noise Canceling Headphones

MDR-NC300D

©2009 Sony Corporation     Printed in Malaysia

Operating Instructions
Manual de instrucciones



MONIT

OR

SOUND  MODE

VOLUME

HOLD     PO

WER

OPEN

LOCK

NC  OPTIMIZE



OPEN

LOCK

OPE

N

LOCK

OPEN

LOCK





unlock

lock



Sectional View







Diameter

Height

Colored parts

End of earbud’s 

colored part





HOLD     POWER

When connecting to the stereo mini 

jack of the remote control supplied 

with a WALKMAN



*

, etc.

*  “WALKMAN” and “WALKMAN”

logo are registered trademarks of Sony

Corporation.



















 



  Digital noise canceling headphones 

Engine.

Creation of a high-precision

canceling signal delivers outstanding

noise canceling performance.

  Automatic AI (Artificial 

function.

Automatic selection of the optimal

noise canceling mode based on

intelligent analysis of environmental

ambient noise.

  Digital Sound Enhancer and full

digital S-Master amplifier delivers

ideal frequency response and

high-quality music reproduction.

  Large 16 mm dynamic type driver

units deliver a wide frequency range

and broad dynamic range.

  Closed type vertical in-the-ear

headphones for secure fit and

wearing comfort.

  7 sizes of hybrid silicone earbuds are

included to ensure ideal seal within

the ear for highest quality sound and

also to provide wearing comfort

during extended listening.

  Three sound modes (NORMAL/

BASS/MOVIE) available based on

use or application.

  Built-in monitor function to hear

surrounding sound without taking

off the headphones.

  Easy-to-use volume control on

control box.

(see fig. )

  Microphones
  Earbuds
  SOUND MODE button

Changes the sound mode:

NORMAL, BASS and MOVIE.

  VOLUME(+/–) button

Adjusts the volume.

The VOLUME + button has a

tactile dot for ease of use.

  HOLD/POWER switch
  Battery compartment lid
  MONITOR button

To hear ambient sound for safety.

  LCD display

Indicates the current status or

mode, etc.

  Gold-plated L-type stereo 

  NC OPTIMIZE button

Optimizes the noise canceling

sensitivity level.

  Clip holes 

To attach the supplied clip.

(see fig. )

Insert an AA/LR6 dry battery,  
end first.

Insert the battery until the internal

stopper holds the battery.

Make sure to insert the battery 

end first. If you fail to do so, it may

cause heat buildup or a fault.

Approx. hours*

Sony alkaline AA/LR6

dry battery

20 hours*

2

*

1

 At 1 kHz, 0.1 mW + 0.1 mW output

*

2

 Time stated above may vary, depending on

the temperature or conditions of use.

When the battery becomes low, the

battery remains status on the LCD

display will change. The unit will turn

off automatically if there is no battery

remains.

Replace the dry battery by checking the

battery remains status.

Take out the battery from the unit if

you do not intend to use the unit for a

long time.

Open the battery compartment lid,

unlock the internal stopper, and then

take out the battery.

(see fig. )

If the earbuds do not fit your ears

correctly, the noise canceling effect will

not be optimal. To optimize noise

canceling and to enjoy better sound

quality, change the earbuds to another

size, or adjust the earbud position to fit

your ears comfortably and snugly.

If the earbuds do not fit your ears, try

another size. Confirm the size of the

earbuds by checking color inside (see

fig. -).

When you change the earbuds, turn to

install them firmly on the headphones

to prevent the earbud from detaching

and remaining in your ear.

  

 

Diameter

 

Small

Large

High

–

ML

(Blue)

LL

(Purple)

Height

S

(Orange)

M

(Green)

L

(Light blue)

Low

SS

(Red)

MS

(Yellow)

–

(see fig. -)

While holding the headphone, twist and

pull the earbud off.

 Tip

If the earbud slips and cannot be

detached, wrap it in a soft dry cloth.

(see fig. -)

Push the earbud onto the headphone to

where the end of the earbud’s colored

part aligns with .

(see fig. )

Wear the earpiece marked  in

your right ear and the one marked

 ( has a tactile dot for ease of

use.) in your left ear.

Adjust the earbuds position to fit

your ears snugly.

If you wear the headphones

incorrectly, noise canceling will not

function.

Adjust the earbud position to sit on

your ears comfortably and fit your

ears snugly.

appears on the LCD

display, and a short beep sounds

from the headphones.

A scale bar appears on the LCD

display when you press VOLUME +

or –.

The scale bar changes according to

your volume setting.

Notes


 VOLUME + or – of this headphones does

not change volume setting of a connected

AV equipment.



 Even if you adjust the volume to the

minimum, some sound leakage in the

headphones may be heard.

Automatic AI Noise Canceling is a

useful function that automatically

selects one of the noise canceling

modes. This function provides the most

effective automatic noise canceling by

constant analyzing of ambient sound.

The current noise canceling mode is

displayed.

This mode is suitable mainly for low

and midrange frequency noise.

This mode is suitable mainly for

noise in an airplane.

This mode is suitable mainly for

ultralow frequency noise.

This mode is suitable mainly for

noise in a bus or train.

This mode is suitable mainly for

subtle and wideband noise.

This mode is suitable mainly for

noise in an office environment (PC,

copier, air ventilation, etc.).

 Tip

Noise characteristics vary over time.

The headphones automatically select the

appropriate noise canceling mode for the

situation.

The current sound mode is displayed.

The sound mode changes in the

order of NORMAL → BASS →

MOVIE.

NORMAL: (nothing displayed)

You can enjoy high-quality music

reproduction.

This mode provides high level of

sound reproduction with booming

bass sound.

This mode is suitable for enjoying

an AV sound source with wide

dynamic range in a noisy place.

 Tip

The MOVIE mode is the most

effective when volume level of this

unit is set to around 16.

This unit is designed for creating the

most effective noise canceling effects,

but the default setting may not be best

because of differences in ear shape or

usage circumstances.

Optimize the noise canceling effect

using the noise canceling optimization

function if the default effect is not

sufficient.

A scale bar appears on the LCD

display and playback sound is

muted.

21 levels of sensitivity are available.

Position of the mark where you feel

the noise canceling effect is the

most effective.

 Tips

  The setting value of the noise

canceling optimizing function will

apply to all 3 noise canceling modes.

  The setting value of the noise

canceling optimizing function is

memorized, even when the power is

turned off.

The value of this setting does not reflect

the impact of the noise canceling effect.

Press the MONITOR button while the

power is on, playback silences, and you

can hear the surrounding environment.

To finish this function, press the

MONITOR button again.

When you slide the HOLD/POWER

switch to HOLD side, “HOLD” appears

in the display and the controls on the

unit are disabled. This function is useful

to prevent false operation such as

turning on the unit unintended.

To cancel the Hold function, slide the

HOLD/POWER switch to POWER

side.

You can reset the setting value of the

headphones to the factory default.

cord adjuster (see fig. )

You can adjust the cord length by

winding the cord on the cord adjuster.

(The cord can be wound to the cord

adjuster up to 40 cm. If you wind more,

the cord comes off from the cord

adjuster easily.)

Do not wind the plug or split section of

the cord, as it will strain the cord and

may cause a wire break.

You can fasten the unit on your clothes

or bag, by attaching the supplied clip

onto the unit.

To attach the clip (see fig. )

 Tip

You can attach the clip either way.

The clip is locked in place.

To detach the clip (see fig. )

The clip is released.

  The supplied plug adaptor can be

connected to the dual or stereo mini

jacks of in-flight music services.

dual jacks

stereo mini jacks

  Do not use the headphones when use

of electronic equipment is prohibited

or when use of personal headphones

for in-flight music services is

prohibited.

  Take the headphones off when not in

use.

Turn off the power of the headphones.

“See You!” appears in the display,

and then unit turns off.

 Tip

When power is turned off, the unit

stores the settings, which are applied

again when the unit is turned on.

Settings are not stored if you replace the

battery during the operation.

(see fig. )

  Items must be placed in the correct

order to fit in the carrying case.

  If the cord is left out of the carrying

case, it may be damaged.

  Make sure to remove the elastic band

when removing or placing items;

otherwise, the cord may be damaged.

  Turn on the headphones.

  Check that the battery is not

depleted.

  Check the connection of the

headphones and the AV equipment.

  Check that the connected AV

equipment is turned on.

  Turn up the volume of the connected

AV equipment.

  Turn down the volume of the

connected AV equipment.

  Replace the battery with a new one.

  Replace the battery with a new one.

  Turn off the unit and then take out

the battery. Reinsert the battery and

turn on the unit again.

Type:

Dynamic, closed

Wear method:

Vertical in-the-ear

Driver units:

16 mm, dome type (CCAW

adopted)

Power handling capacity:

100 mW

Impedance:

16 Ω (at 1 kHz)

Sensitivity:

103 dB/mW

Frequency response: 6 – 24,000 Hz

Total Noise Suppression Ratio*

1

:

Approx. 18 dB*

2

Cord:

1.2 m (47

1

/

4

in) OFC litz

cord

Plug:

Gold-plated stereo

mini-plug

Power source:

DC 1.5 V, 1 × AA/LR6 dry

battery

Mass:

Headphones section:

Approx. 8 g (0.3 oz)

(without cord)

Control box section:

Approx. 53 g (1.9 oz)

(without cord, including

battery)

Extension cord (0.6 m (23

5

/

8

in), gold-plated

stereo mini-plug) (1)

Cord adjuster (1)

Clip (1)

Plug adaptor for in-flight use*

3

(single/dual) (1)

Carrying case (1)

Carrying pouch (1)

Earbuds (SS × 2, S × 2, MS × 2, M × 2, ML × 2,

L × 2, LL × 2)

Sony alkaline AA/LR6 dry battery (1)

Operating Instructions (1)

Product Information (1)

Card warranty (1)

*

1

 Under the Sony measurement standard.

For details about the Total Noise

Suppression Ratio amount for each mode,

refer to the Product Information booklet.

*

2

 Equivalent to approx. 98.4 % reduction of

energy of sound compared with not

wearing headphones (NC mode A).

*

3

 May not be compatible with some in-flight

music services.

Design and specifications are subject to

change without notice.

The headphones contain a noise

canceling circuit.

The noise canceling circuit actually

senses outside noise with built-in

microphones and sends an equal-but-

opposite canceling signal to the

headphones.

  The noise canceling effect may not be

pronounced in a very quiet

environment, or some noise may be

heard.

  Do not cover the microphones of the

headphones with your hands. The

noise canceling function may not

work properly.

  The noise canceling effect may vary

depending on how you wear the

headphones.

  The noise canceling function works

for noise in the low frequency band

primarily. Although noise is reduced,

it is not canceled completely.

  When you use the headphones in a

train or a car, noise may occur

depending on street conditions.

  Mobile phones may cause

interference and noise. Should this

occur, locate the headphones further

away from the mobile phone.

  Clean the headphones with a soft dry

cloth.

  Do not leave the jack plug dirty

otherwise the sound may be

distorted.

  Be sure to bring the headphones to

the Sony dealer when requiring a

change of earbuds or repair work.

  Do not leave the headphones in a

location subject to direct sunlight,

heat or moisture.

  Do not subject the headphones to

excessive shock.

  To clean the earbuds, first remove

them from the headphones, and then

clean them with water and mild

detergent. After cleaning, dry each

earbud carefully before use.

  The earbuds will need to be replaced

from time to time. If they are worn

out by daily use or longtime storage,

replace them with new ones.

  If you fell drowsy or sick while using

these headphones, stop use

immediately.

  Install the earbuds firmly onto the

headphones. If an earbud accidentally

detaches and is left in your ear, it may

cause injury.

Avoid using headphones at high

volume. Hearing experts advise against

continuous, loud and extended play. If

you experience a ringing in your ears,

reduce the volume or discontinue use.

As headphones reduce outside sounds,

they may cause a traffic accident. Also,

avoid listening with your headphones in

situations where hearing must not be

impaired, for example, a railroad

crossing, a construction site, etc.

In particularly dry air conditions, mild

tingling may be felt on your ears. This is

a result of static electricity accumulated

in the body, and not a malfunction of

the headphones.

The effect can be minimized by wearing

clothes made from natural materials.

If you have any questions or

problems concerning the system that

are not covered in this manual,

please consult your nearest Sony

dealer.

personnel only.
This device complies with Part 15 of the

FCC Rules.

Operation is subject to the following

two conditions: (1) This device may not

cause harmful interference, and (2) this

device must accept any interference

received, including interference that

may cause undesired operation.

You are cautioned that any changes or

modifications not expressly approved in

this manual could void your authority

to operate this equipment.

This equipment has been tested and found to

comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules.

These limits are designed to provide

reasonable protection against harmful

interference in a residential installation. This

equipment generates, uses and can radiate

radio frequency energy and, if not installed

and used in accordance with the instructions,

may cause harmful interference to radio

communications. However, there is no

guarantee that interference will not occur in a

particular installation. If this equipment does

cause harmful interference to radio or

television reception, which can be determined

by turning the equipment off and on, the user

is encouraged to try to correct the

interference by one or more of the following

measures:

–  Reorient or relocate the receiving antenna.

–  Increase the separation between the

equipment and receiver.

–  Connect the equipment into an outlet on a

circuit different from that to which the

receiver is connected.

–  Consult the dealer or an experienced radio/

TV technician for help.

The validity of the CE marking is

restricted to only those countries where

it is legally enforced, mainly in the

countries EEA (European Economic

Area).

The model number is located at the

back side of the control box.

The serial number is located in the

battery compartment.

Record these numbers in the spaces

provided below. Refer to them

whenever you call upon your Sony

dealer regarding this product.

Model No. MDR-NC300D  __________

Serial No. ________________________