Acoustic Research Headphones AW D510 User Manual

2.4GHz Digital  
Wireless HD Headphones™  
T R U E  
Surround  
Sound  
5.1  
AWD510  
Owner’s Manual  
 
Table of Contents  
Introduction ...............................................................1  
Features ......................................................................1  
Getting Started...........................................................2  
Headphone Buttons & Indicators...............................4  
Transmitter Jacks & Controls......................................5  
Using your Headphones..............................................6  
Troubleshooting .........................................................8  
Specifications..............................................................9  
12 Month Limited Warranty ......................................9  
Introduction  
Congratulations on your purchase of the 2.4GHz Wireless HD Headphones with  
True 5.1 Surround Sound. The AWD510 uses the latest in wireless transmission,  
2.4GHz digital technology, that lets you enjoy crystal clear, uncompressed Dolby  
Digital or uncompressed CD-quality audio up to 60 feet away from the transmitter.  
The headphones also offer a true 5.1 stereo listening experience, with a 3-speaker  
design in each ear cup. The headphones' compact design and comfortable ear cups  
let you enjoy theater-quality sound just about anywhere in 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.  
Features  
True 5.1 surround sound, with 3-speaker design in each cup  
2.4GHz Digital technology lets you enjoy crystal clear audio wirelessly up to 60  
feet away from the transmitter, with no line-of-sight limitations*  
Convenient power, volume and tuning controls located on headphones  
8 selectable transmission channels for optimized reception  
*Range may vary according to environment.  
 
Getting Started  
Supplied Accessories  
This headphone system includes accessories that enable you to use your wireless  
headphone set in a number of ways.  
AC power adapter  
2.4GHz wireless transmitter  
Wireless headphones  
Digital coaxial cable  
Stereo cable (3.5 mm jacks)  
Stereo Y adapter cable  
(RCA/3.5 mm jack)  
Optical cable  
Charging the Headset  
Before using your headphones for the first time, charge them for 3.5 hours using  
the supplied AC power adapter.  
1. Power the transmitter.  
Connect the AC power adapter to the DC IN power  
DC IN  
COAXIAL OPTICAL LINE IN  
supply jack on the transmitter's back panel.  
Plug the adapter into an electrical outlet.  
Transmitter (back panel)  
Important: This power unit is intended to be correctly  
oriented in a vertical or floor mount position.  
AC power  
adapter  
 
2. Charge the headset.  
Unhook the charging cable on the transmitter’s  
back panel.  
Transmitter (back panel)  
DC IN  
COAXIAL OPTICAL LINE IN  
Charging cable  
Plug the end of the charging cable into the  
recharging jack on the right headphone.  
While the headphones are charging, the LED on  
the left headphone remains red. This LED turns off  
when the headphones are fully charged.  
Note: To get the most from your headphones’ battery,  
make sure you let the headphones charge completely  
before you used them for the first time.  
Note: Make sure the transmitter is off while you charge  
the headphones.  
Connection to the Audio Source  
The 2.4GHz wireless transmitter supports Dolby Digital 5.1 encoding through  
the digital optical and digital coaxial inputs. It also offers an analog connection  
through the LINE IN jack.  
Connecting to a digital optical or digital coaxial output  
1. Plug the digital optical or digital coaxial cable  
into the corresponding output jack on your audio  
Transmitter (back panel)  
source.  
DC IN  
COAXIAL OPTICAL LINE IN  
2. Connect the other end of the digital optical or  
digital coaxial cable to the OPTICAL or COAXIAL  
jack on the transmitter's back panel.  
Digital  
Digital  
coaxial  
cable  
optical  
cable  
—OR—  
Digital coaxial jack  
on audio source  
Optical jack on  
audio source  
 
Connecting to mini jack or stereo RCA outputs  
1. Connect one end of the 3.5mm stereo cable to the  
Transmitter (back panel)  
LINE IN jack on the transmitter’s back panel.  
DC IN  
COAXIAL OPTICAL LINE IN  
2. Connect the other end of the 3.5mm stereo cable to  
the headphone jack on your MP3 or CD player.  
3.5mm  
cable  
3.5mm  
cable  
—OR—  
—OR—  
Y adapter  
cable  
MP3 player/  
CD player  
Connect the other end of the 3.5mm stereo cable  
to the Y adapter cable. Connect the red and white  
plugs of the Y adapter cable to the audio source's  
line out jacks—make sure you match the plug colors  
with the jack colors (red to red, white to white).  
Left and right audio output  
jacks on audio source  
Headphone Buttons & Indicators  
Left headphone (side view)  
Right headphone (side view)  
Power button  
turns the  
headphones on  
and off  
Mute/Link  
decreases headphone  
volume to its lowest  
level; hold for 5  
seconds to link to  
the transmitter (if the  
headphones fail to  
link automatically)  
LED indicates  
charging (red) and  
communication with  
transmitter (blue)  
Recharging jack  
Volume up/down  
buttons increase  
or decrease the  
headphone volume  
 
Transmitter Jacks & Controls  
Transmitter (back panel)  
COAXIAL jack connects  
to a digital coaxial source  
Antenna  
OPTICAL jack connects to  
a digital optical source  
DC IN jack connects to  
the AC power adapter  
LINE IN jack connects to  
an analog audio source  
Charging cable connects  
to the headphones’  
recharging jack  
DC IN  
COAXIAL OPTICAL LINE IN  
Transmitter (top panel)  
Channel select/link  
button cycles through the  
transmitter’s broadcast  
channels; hold for 5 seconds  
to link to the headphones if  
the headphones fail to link  
automatically (you must press  
and hold the headphones’ link  
button at the same time)  
LED indicates which input  
jack is currently selected  
Input select button cycles  
through the input jacks  
Power button turns the  
transmitter on and off  
 
Using your Headphones  
1. Press the power button on the transmitter’s top  
panel to turn the transmitter on.  
Note: Make sure the right input is selected—if it isn’t,  
press the input select button repeatedly until the LED  
above the correct input is lit.  
2. Press the power button on the right headphone to  
turn the headphones on.  
power  
button  
3. Switch on the audio source (TV, DVD, CD player,  
etc.) to which the transmitter is connected. If your  
audio source is a DVD or CD player, start a disc.  
4. The headphones and transmitter should automatically lock onto each other for  
wireless transmission.  
If they don’t tune automatically, or if you experience interference in the  
transmission, press the ch select button on the top of the transmitter until you  
find the clearest channel. The headphones beep when they lock onto a new  
channel. If you don’t hear a beep, the current channe might be in use by other  
2.4GHz devices (such as a wireless router). Push the ch select button again to try  
another channel. There are 8 channel frequencies available.  
5. Adjust the volume using the volume up and down buttons on the left earphone.  
Turning the Headphones Off  
To turn the headphones off: Press and hold the power button on the headphones  
for 1 second. Don't forget to switch off the transmitter too!  
 
If you’re using the LINE IN input...  
If possible, use a fixed-level (or line-level) audio output from your audio source.  
This kind of output provides a consistent level of audio that doesn’t change when  
you adjust the source’s volume control.  
Fixed-level audio outputs from stereo receivers/amps are typically designated as  
tape or VCR audio output connections, sometimes marked on the component as  
‘TAPE OUTPUT,’ ‘TAPE OUT,’ ‘TAPE REC, or ‘TAPE RECORD or REC OUT.’  
Fixed-level outputs from TVs are usually marked as ‘Constant,’ ‘Fixed,’ or ‘Select.’  
If they are not marked as such, they are probably variable outputs (see “About  
Variable-Level Audio Outputs” below). Outputs from DVD players are almost  
always fixed.  
Important: Jacks labeled CD, DVD/DVR, PHONO, or tape playback (PB) are INPUTS  
and will not work with the transmitter.  
About Variable-Level Audio Outputs  
A variable-level output, such as a headphone jack or certain RCA-type outputs,  
provides an audio signal that changes with the volume level set on the audio  
source. As the volume of the audio source is adjusted up and down, so is the  
audio signal strength sent to the transmitter. This can affect the quality of sound  
generated by the headphones, and may require an adjustment of the volume level  
of the audio source to produce a signal strong enough for the transmitter.  
Hints:  
• On most bookshelf-type or compact stereo systems, inserting a headphone plug into the  
headphone jack results in automatic cutoff of the regular, or hard-wired speakers.  
Most TVs, regardless of age or price, have variable outputs. If you are unsure which  
of your TV audio outputs is fixed, refer to the TV instruction manual. Some TVs have  
outputs that can switch between variable and fixed. When given a choice, fixed is always  
recommended.  
Listen safely!  
Enjoy your headphones at a safe volume. Avoid or limit the amount of time you  
listen at higher volumes—permanent hearing loss may occur if the headphone is  
used at too high a volume. If you experience a ringing in your ears, or your own  
voice and other sounds seem muffled, stop using the headphones and consult a  
hearing professional.  
Battery life  
Due to the chemistry of the headphones’ rechargeable battery, required charging  
time may increase while the actual capacity of the battery may decrease. If you  
have any questions regarding the replacement of the built-in battery, please call  
toll-free 1-800-732-6866 or visit www.araccessories.com.  
 
Troubleshooting  
The following troubleshooting guide takes you through some of the more common  
problems associated with the installation and/or operation of a wireless system. If  
the problem persists, please call toll-free 1-800-732-6866 or visit  
www.araccessories.com.  
Issue:  
Cause and solution:  
No sound  
• Make sure the transmitter’s AC power adapter is fully inserted into the wall  
outlet and the power cord from the AC adapter is firmly connected to the  
transmitter power input jack.  
• Check that the audio source component (DVD player, TV, etc.) is turned on and  
transmitting sound as it normally should. If you’re using a PC or DVD player,  
make sure you’ve selected the correct audio output and that the sound is not  
muted.  
• Confirm that the headphones are turned on (the LED is blue) and tuned to the  
transmitter. If the LED is not blue, press the ch select key on the transmitter to  
try a different channel. If this doesn’t work, press and hold the mute/link key on  
the headphone and the ch select/link key on the transmitter simultaneously for 3  
seconds.  
• Make sure the headphones are charged—the LED on the right headphone should  
be blue.  
• Check that the headphone volume is turned up.  
• If you’re using a variable output audio source (like a headphone jack or variable  
output on a TV set), make sure the source component’s volume is set high  
enough for the transmitter to detect.  
• If you are using a Tape 2 Monitor output from your receiver/amp as the audio  
output, check that you have pressed the Tape Monitor/Tape 2 button on the  
front of the receiver. This will turn on the Tape 2 outputs, which may not have  
been active.  
Interrupted  
sound  
• Move closer to the transmitter with the headphones on. Sending the signal  
through certain materials, such as glass, tile, and metal, can decrease the effective  
transmitting distance of the system.  
• Try a different channel from the transmitter: press the ch select key on the  
transmitter’s top panel.  
LED fails to  
light up  
• Make sure the headphones are charged and that the transmitter is properly  
connected to the audio source. Then, move the headphones close to the  
transmitter and press the headphone power button again.  
Headphones  
shut off  
automatically  
• Move closer to the transmitter.  
• The headphones’ rechargeable battery needs to be recharged. Use the charging  
cable on the transmitter to recharge the headphones.  
Headphones  
start beeping  
• If you’re trying to find a different channel on the transmitter, the headphones  
beep when they lock onto a new channel.  
• The headphones beep every few seconds when the batteries are running low. Use  
the charging cable on the transmitter to recharge the headphones.  
 
Specifications  
Transmitter  
Omni-directional 2.4GHz digital broadcast  
Dolby Digital 5.1 Surround Sound decoding  
Effective transmitting range: up to 60ft. (18m)*  
Audio inputs: Digital optical, digital coaxial, and 3.5mm stereo jack  
8 selectable transmission channels  
HD Headphones  
Patented three-speaker design in each earcup:  
40mm Neodymium drivers for front left/right and subwoofers  
15mm Neodymium drivers for center channels  
15mm Neodymium drivers for surround left/right channels  
Frequency response: 20Hz–20kHz  
Distortion (THD): ≤1%  
Battery type: Lithium polymer  
Battery life: Up to 8 hours between charges  
*Maximum range; results may vary according to environment.  
12 Month Limited Warranty  
Audiovox Electronics Corporation (the “Company”) warrants to the original retail purchaser of this product that should  
this product or any part thereof, under normal use and conditions, be proven defective in material or workmanship  
within 12 months from the date of original purchase, such defect(s) will be repaired or replaced (at the Company’s option)  
without charge for parts and repair labor. To obtain repair or replacement within the terms of this Warranty, the product  
along with any accessories included in the original packaging is to be delivered with proof of warranty coverage (e.g.  
dated bill of sale), specification of defect(s), transportation prepaid, to the Company at the address shown below. Do not  
return this product to the Retailer.  
This Warranty is not transferable and does not cover product purchased, serviced or used outside the United States or  
Canada. The warranty does not extend to the elimination of externally generated static or noise, to costs incurred for the  
installation, removal or reinstallation of the product. The warranty does not apply to any product or part thereof which,  
in the opinion of the company, has suffered or been damaged through alteration, improper installation, mishandling,  
misuse, neglect, accident or exposure to moisture. This warranty does not apply to damage caused by an AC adapter not  
provided with the product, or by leaving non-rechargeable batteries in the product while plugged into an AC outlet.  
THE EXTENT OF THE COMPANY’S LIABILITY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR  
REPLACEMENT PROVIDED ABOVE AND, IN NO EVENT, SHALL THE COMPANY’S LIABILITY EXCEED THE  
PURCHASE PRICE PAID BY PURCHASER FOR THE PRODUCT.  
This Warranty is in lieu of all other express warranties or liabilities. ANY IMPLIED WARRANTIES, INCLUDING  
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL BE  
LIMITED TO DURATION OF THIS WARRANTY. ANY ACTION FOR BREACH OF ANY WARRANTY HEREUNDER,  
INCLUDING ANY IMPLIED WARRANTY, MUST BE BROUGHT WITHIN A PERIOD OF 24 MONTHS FROM THE  
DATE OF ORIGINAL PURCHASE. IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY CONSEQUENTIAL  
OR INCIDENTAL DAMAGES WHATSOEVER. No person or representative is authorized to assume for the Company  
any liability other than expressed herein in connection with the sale of this product. Some states/provinces do not allow  
limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damage so  
the above limitations or exclusions may not apply to you. This Warranty gives you specific legal rights and you may also  
have other rights which vary from state/province to state/province.  
U.S.A.: Audiovox Electronics Corporation, 150 Marcus Blvd., Hauppauge, New York 11788  
CANADA: Audiovox Return Center, c/o Genco, 6685 Kennedy Road, Unit 3, Door 16, Mississauga, Ontario L5T 3A5  
 
© 2007 Audiovox Accessories Corporation  
111 Congressional Blvd., Suite 350  
Carmel, IN 46032 USA  
AWD510_US_IB_00  
Trademark(s) Registered  
All other brands and product names are trademarks or registered  
trademarks of their respective owners.  
 

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