Acoustic Research AWD204 User Manual
900MHZ WIRELESS
STEREO HEADPHONES
OWNER’S MANUAL
AWD204
CASQUE D’ÉCOUTE STÉRÉO
900 MHZ NUMÉRIQUE SANS FIL
MANUEL DE L’UTILISATEUR
Im p o r t a n t In f o r m a t I o n
CAUTION
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
WARNING: To reduce the risk of re or
electric shock, do not expose this product to
rain or moisture. The apparatus shall not be
exposed to dripping or splashing. No objects
lled with liquids, such as vases, shall be
placed on the apparatus.
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings.
Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such
as radiators, heat registers, stoves, or
other apparatus (including ampliers) that
produce heat.
9. Protect the power cord from being walked
on or pinched particularly at plugs,
convenience receptacles, and the point
where they exit from the apparatus.
10.Unplug this apparatus during lightning
storms or when unused for long periods
of time.
11. Refer all servicing to qualied service
personnel. Servicing is required when
the apparatus has been damaged in any
way, such as power-supply cord or plug
is damaged, liquid has been spilled or
objects have fallen into the apparatus, the
apparatus has been exposed to rain or
moisture, does not operate normally, or has
been dropped.
Product Information
Keep your sales receipt to obtain warranty parts and service and for proof of purchase.
Attach it here and record the model number in case you need it. These numbers are
located on the product.
Model No.: _____________________________________________________________________
Purchase Date: _________________________________________________________________
Dealer/Address/Phone: __________________________________________________________
Caution: To reduce the risk of electric shock, do not
remove cover (or back). No user serviceable parts inside.
Refer servicing to qualied service personnel.
FCC Information
FCC Regulations state that unauthorized
changes or modications to this equipment may
void the user’s authority to operate it.
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.
RF Exposure Warning: This equipment must
be installed and operated in accordance with
provided instructions and the antenna(s) used
for this transmitter must be installed to provide
a separation distance of at least 20 cm from
all persons and must not be co-located or
operating in conjunction with any other antenna
or transmitter. End-users and installers must be
provide with antenna installation instructions
and transmitter operating conditions for
satisfying RF exposure compliance.
Industry Canada Regulatory Information
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.
The user is cautioned that this device should
be used only as specied within this manual
to meet RF exposure requirements. Use of this
device in a manner inconsistent with this manual
could lead to excessive RF exposure conditions.
This Class B digital apparatus complies with
Canadian ICES-003. This radiocommunication
device complies with Industry Canada Standard
RSS-210.
Cet appareil numérique de la classe B est
conforme à la norme NMB-003 du Canada. Ce
dispositif de radiocommunication respecte la
norme CNR-210 d’Industrie Canada.
In t r o d u c t I o n
Welcome
Congratulations on your purchase of these Acoustic Research
900MHz Wireless Stereo Headphones. The AWD204 headphones let
you enjoy crystal clear, uncompressed digital audio up to 150 feet
away from the transmitter. The headphones' compact design and
comfortable ear cups let you enjoy music and TV sound just about
anywhere inside or outside your home.
This manual covers various connection options and detailed operating
instructions for setup and use of the AR wireless headphones. If, after
having reviewed the instructions, you have any questions, please call
toll-free 1-800-732-6866 or visit www.araccessories.com.
Supplied Accessories
This headphone system includes accessories that enable you to use
your wireless headphone set in a number of ways.
AC power adapter
Wireless headphones
900MHz wireless
transmitter
2 AAA rechargeable batteries
3
Ge t t I n G St a r t e d
Installing the Headphone Batteries
1. Twist the left headphone’s earpad cover counter-clockwise to
expose the battery compartment.
2. Insert the two (2) rechargeable AAA batteries (included) in the
left headphone, following the polarity (+ and –) diagram inside the
compartment.
3. Place the earpad back on the left headphone and twist it clockwise
to lock it back into place.
Important: DO NOT mix batteries with different chemistry types
(for example, a zinc battery with an alkaline battery). DO NOT
mix new and used batteries. DO NOT leave batteries installed in
the product when not in use for long periods. Always remove old,
weak or worn-out batteries promptly and recycle or dispose of
them in accordance with local and national regulations.
Important: If you are using rechargeable batteries NiMH or
NiCd (such as the batteries provided), the batteries will charge
when the headphones are connected to the transmitter using
the charging cable. DO NOT connect the headphones to the
transmitter with the charging cable if you installed alkaline or
other non-rechargeable batteries – this could cause the batteries
to leak, which would damage the headphones.
4
Ge t t I n G St a r t e d
Charging the Headset
If you use the rechargeable batteries provided with the headphones,
you should charge them before you use them for the rst time.
The batteries charge when the headphones are connected to the
transmitter’s built-in charging cable.
WARNING: To avoid risk of re or injury, DO NOT connect the
headphones to the transmitter with the charging cable if you installed
alkaline or other non-rechargeable batteries – this could cause the
batteries to leak, which would damage the headphones.
To charge the headset unit:
Transmitter
(back panel)
Built-in
charging
cable
Left headphone
Notes about charging:
• When the batteries are charged, remember to unplug the charging
cable from the headphones and transmitter.
• Never leave the batteries charging for more than 48 hours.
• The batteries should be charged for a full 15 hours.
Plug the transmitter’s built-in charging
cable (located on the back of the
transmitter) into the Charge jack on
the left headphone. (Make sure the
transmitter is plugged in!)
While the headphones are charging, the
Charge indicator on the transmitter’s
front panel remains red.
5
Ge t t I n G St a r t e d
Setting Up the Transmitter
The 900MHz wireless transmitter works with a wide variety of audio
sources, from portable MP3 players to A/V receivers to DVD players or
gaming systems. The way you set it up depends on the kind of output
you want to use on your audio source.
To connect the transmitter to your audio source:
1. Plug the transmitter’s
3
2
Transmitter (back panel)
If your audio source has stereo RCA
outputs: Connect the red and white plugs
of a stereo Y adapter cable (not included) to
the audio source’s line out jacks. Connect the
other end of the stereo Y adapter cable to the
transmitter’s built-in audio cable.
1
built-in audio cable into
the headphone jack on
your audio source.
2. Connect the AC power
adapter to the Power In
jack on the transmitter’s
back panel.
3. Plug the adapter into an
electrical outlet.
Important: This power
unit is intended to be
correctly oriented in a
vertical or oor mount
position.
Note: High-output sources,
such as DVD players or
audio receivers/ampliers,
may cause distortion if
used at full volume with the
transmitter. Try setting them
at 1/2 or 2/3 volume.
6
Bu t t o n S & Ja c k S
Using the Wireless Headphones
Turning the Headphones On
On/Off switch
(right
headphone,
bottom)
Indicator
(right headphone,
side)
3. Switch on the audio source (TV, DVD, CD player, etc.) the
transmitter is connected to. If your audio source is a DVD or CD
player, start a disc.
The headphones and transmitter should tune automatically in a
matter of seconds—the transmitter’s On light and the headphone’s
indicator both turn solid green when tuned.
4. If you’re using a variable-level audio output (something you can
set the volume on), adjust the volume on your audio source. Then
adjust the volume using the Volume wheel on the right earphone.
Turning the Headphones Off
Put the On/Off switch in the Off position. Don’t forget to unplug the
transmitter too!
1. Make sure the transmitter is
plugged in and connected to an
audio source.
2. Put the On/Off switch on the
right headphone in the On
position. The indicator on the
right headphone lights up red to
show that the headphones are
on.
7
Bu t t o n S & Ja c k S
Transmitter
Front Panel
Charge (red) indicates that your headphones are charging
On (green) indicates the transmitter is receiving input from an audio
source
Back Panel
Charge cable connects to the left
headphone and recharges your
headphones if you’re using rechargeable
batteries
Analog In cable connects to an analog
audio source (like the headphone jack on
your mp3 player)
1 2 3 switch lets you choose a
frequency for your transmitter with the
Front panel
Back panel
headphones
Left headphone
least amount of interference in your
environtment
Power in jack connects to the AC power
adapter
Charge jack connects to the transmitter
via the charging cable and recharges
your headphones if you’re using
rechargeable batteries
8
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