Denon AH-NC600 Cause, Symptom, nMounting, nPutting on, nOperations, Preparations, Countermeasure, Specifications, Troubleshooting, Handling the cords, Listening to audio

Dry battery replacement period

When the battery wears down, the
indicator will turn off or flash. Replace	Indicator
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.

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 size after 15 to 30 seconds.

•Do not let Foam type ear pieces get wet. Moisture will accelerate their deterioration.

nPutting 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.

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.

	Control box
Branch point

Slider

Clip

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 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.

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 PreparationsAbout 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 piecesnMounting

Pinch the tip of the ear piece and attach it to the headphone’s nozzle while turning.

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”	“R”
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.	Switch	Indicator
• 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.

nOperations

Set the switch to ”RESTORER”.

•The noise cancellation function and the restorer function turn on, and the indicator lights white.

Troubleshooting1.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		Cause			Countermeasure
No sound emitted.	• Connecting cable	not	connected	to playback	• Check that the plug is fully inserted.
	device. Or connection is defective.
	• Connected device does not operate.				• Turn on the power of the connected device, and
					play.
	• Connected device volume is low.				• Gradually increase the volume of the connected
					device.
	• The switch is set to on or ”RESTORER” though no				• Replace with new batteries.
	battery is loaded or the loaded battery is spent.
Sound is distorted.	• Connected device volume is too high.				• Decrease the volume of the connected device.
	• Batteries are worn.				• Replace with new batteries.
No noise canceling	• Batteries are worn.				• Replace with new batteries.
effect.	• AH-NC600 power is off.				• Turn the AH-NC600 power on.
	• The batteries are	not	inserted in	the proper	• Insert the batteries in the proper direction, following
	direction, as indicated by the polarity marks in the				the polarity marks in the battery compartment.
	battery compartment.
Noise can be heard.	• Batteries are worn.				• Replace with new batteries.
	• Mobile phone or other electronic device is nearby.				• Move the electronic device away.
There is no	• The RESTORER function is turned off.				• Turn it on.
RESTORER effect.	• Batteries are worn.				• Replace with new batteries.
	• The batteries are	not	inserted in	the proper	• Insert the batteries in the proper direction, following
	direction, as indicated by the polarity marks in the				the polarity marks in the battery compartment.
	battery compartment.

Specifications

nType:	Dynamic type		nMaximum input:	100 mW
nDrive units:	Ø 13.5 mm		nPlayback frequencies:	5 ~ 25,000 Hz
nInput impedance:	16	Ω/ohms (With power off)	nWeight:	26 g (Not including battery)
	70	Ω/ohms (With power on)	nCable length:	1.1 m (Including control box)
nSensitivity:	112 dB/mW (With power on)		nPlug:	Ø 3.5 mm gold-plated stereo mini plug

zFor improvement purposes, specifications and design are subject to change without notice.