Using The Headphones; Troubleshooting; Specifications - Denon AH-NC600 Owner's Manual

Dry battery replacement period
When the battery wears down, the
indicator will turn off or flash. Replace
the old battery with a new one.
Dry battery duration
When using an alkaline dry battery, the duration is approximately
60 hours.
This varies with the conditions of use.
Cautions on the battery
• Be sure to turn the AH-NC600's power switch off when
replacing the battery.
• Use a R03/AAA alkaline battery in the AH-NC600. Using other
batteries may result in a shorter operating time.
• Use a new battery. Using an old battery may result in an
extremely short operating time.
• The included battery is only meant for checking operation.
• Do not attempt to recharge the battery.
Doing so could result in damage or leakage of battery fluid.
Also do not heat or disassemble the battery or dispose of it in
flames or water.
• Remove the battery when not using the AH-NC600 for extended
periods of time.
• If the battery fluid should leak, carefully wipe the fluid off the
inside of the battery compartment and insert new batteries.

Using the headphones

Preparations
About the ear pieces
Foam type: Material offering a good fit in
the ear and little affected by
surrounding noise.
Regular type: Material little affected by sweat or
fat. Select the ear pieces providing
the best fit from among three
sizes: S, M and L.
NOTE:
• Fit the ear pieces securely on the nozzle of the headphones.
• Choose ear pieces that fit in your ear. If the ear pieces do not fit
properly, the noise cancellation effect will be weak, the sound
will leak out or the bass will not be audible.
• The ear pieces may deteriorate after long term of use or
storage.
About foam type ear pieces
n Mounting
Pinch the tip of the ear piece and attach it to the headphone's
nozzle while turning.
NOTE:
• Do not scratch the ear pieces with your nails. Doing so may
cause tears in the surface of the ear piece.
• The ear pieces crush when pinched, but return to their original
Indicator
size after 15 to 30 seconds.
• Do not let Foam type ear pieces get wet. Moisture will
accelerate their deterioration.
n Putting on
Pinch the tip of the ear piece then insert it into
your ear.
• The ear piece swells to fit the shape of your
ear canal.
About the left/right marks (L/R)
Check the left/right markings on the headphones, then insert
them so that they fit snuggly inside your ear, the one marked "R"
in your right ear, the one marked "L" in your left ear.
"L"
Bump
Listening to audio
First minimize the volume of the playback device.
1. Connect the plug to the playback
device.
2. Turn on the power of the playback
device and start playback.
3. Turn on the power.
• The noise cancellation function
turns on and the indicator lights
blue.
NOTE:
• If the indicator does not light or flashes when the power is
turned on, the battery is worn. Replace it with a new battery.
• Be sure to turn the power off after use.
• You may not be able to use with some portable and other
devices equipped with a digital amplifier.
With the AH-NC600 power switched off, you can use as
normal headphones.
About the RESTORER function
Such compressed audio formats as MP3, WMA (Windows
Media Audio) and MPEG-4 AAC reduce the amount of data by
eliminating signal components that are hard for the human ear to
hear. The RESTORER function generates the signals eliminated
upon compression, restoring the sound to conditions near those
of the original sound before compression.
n Operations
Set the switch to "RESTORER".
• The noise cancellation function and the restorer function turn
on, and the indicator lights white.
Handling the cords
• Adjust the position of the slider to take up any slack in the right
and left cables.
• Use the clip to fasten the control box to a pocket on your
clothes, etc.
Slider

Troubleshooting

1. Is the set being operated as described in the owner's manual?
If this unit does not operate properly, check the items listed in the table below. Should the problem persist, there may be a
malfunction. In this case, contact your store of purchase.
Symptom
No sound emitted.
"R"
Sound is distorted.
No noise canceling
effect.
Noise can be heard.
Switch Indicator
There is no
RESTORER effect.

Specifications

n Type:
Drive units:
n
Input impedance:
n
n Sensitivity:
z
For improvement purposes, specifications and design are subject to change without notice.
About using on planes
When listening to service music on an aircraft, use the included
conversion plug for aircraft use.
NOTE:
• You may not be able to use the included conversion plug for
Branch point Control box
aircraft use, depending on the aircraft.
• Do not use the AH-NC600 when use of electronic devices is
prohibited on board or when using the on-board music service
with your personal headphones is prohibited.
Clip
Cause
• Connecting cable not connected to playback
device. Or connection is defective.
• Connected device does not operate.
• Connected device volume is low.
• The switch is set to on or "RESTORER" though no
battery is loaded or the loaded battery is spent.
• Connected device volume is too high.
• Batteries are worn.
• Batteries are worn.
• AH-NC600 power is off.
• The batteries are not inserted in the proper
direction, as indicated by the polarity marks in the
battery compartment.
• Batteries are worn.
• Mobile phone or other electronic device is nearby.
• The RESTORER function is turned off.
• Batteries are worn.
• The batteries are not inserted in the proper
direction, as indicated by the polarity marks in the
battery compartment.
Dynamic type n Maximum input:
Playback frequencies: 5 ~ 25,000 Hz
Ø 13.5 mm n
16 Ω/ohms (With power off) Weight:
n
70 Ω/ohms (With power on) n Cable length:
112 dB/mW (With power on) n Plug:
Countermeasure
• Check that the plug is fully inserted.
• Turn on the power of the connected device, and
play.
• Gradually increase the volume of the connected
device.
• Replace with new batteries.
• Decrease the volume of the connected device.
• Replace with new batteries.
• Replace with new batteries.
• Turn the AH-NC600 power on.
• Insert the batteries in the proper direction, following
the polarity marks in the battery compartment.
• Replace with new batteries.
• Move the electronic device away.
• Turn it on.
• Replace with new batteries.
• Insert the batteries in the proper direction, following
the polarity marks in the battery compartment.
100 mW
26 g (Not including battery)
1.1 m (Including control box)
Ø 3.5 mm gold-plated stereo mini plug