15791-0-2
AD 34972
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W ir e le s s S u r r o u n d S o u n d H e a d p h o n e s
with Dolby® Digital technology
Model AW791
In s t a lla t io n a n d O p e r a t io n M a n u a l
Covered by one or more of the following US patents and Patents
Pending: 5,272,525; 5,410,735; 5,666,658; and 6,215,981.
U.S. Patent Nos.5,371,799; 5,436,975; 5,809,149 and various
foreign counterparts. Copyright QSound Labs, Inc. 1996-2001.
®
Recoton Accessories, Inc.
Manufactured under license from Dolby Laboratories. "Dolby",
"Pro Logic", and the double-D symbol are trademarks of Dolby
Laboratories. Confidential unpublished works.
2950 Lake Emma Road
Lake Mary, FL 32746
© 2001 Recoton
Copyright 1992-1997 Dolby Laboratories. All rights reserved.
All trademarks are the property of their respective owners.
MADE IN CHINA
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C o n n e c t in g
L o c a t io n
H e a d p h o tnh ee S y s t e m
F u n co tf io n s
I
II
i. S e t u p :
Tr a n s m it t e r F r o n t V ie w :
A. Surround Sound ON/OFF Switch
B. Surround Sound ON/OFF Light
C. Input Indicator Lights
1. Digital Coaxial
Place the Transmitter in a location with enough clearance so that you can
store the Headphones on the Transmitter. This is important, because the
Transmitter charges the Rechargeable Batteries (P) inside the headphones so
they are always ready for use. See Charging the Batteries on page 5.
2. Digital Optical
3. Analog
D. Input Select Switch
You can use the Surround Sound Headphones with up to three different
audio/video components. The three inputs on the transmitter – two digital
and one analog – allow quick and easy connections for maximum versatility.
S
S
1
2
3
A
B
C1 C2 C3
D
Tr a n s m it t e r B a c k V ie w :
E. AC Input Jack
ii. C o n n e c t in g t o D ig it a l C o m p o n e n t s :
a. Connecting Using the Supplied Toslink® Digital Optical Cable:
F. Input Connectors
C
H
A
N
N
E
L
G
1. RCA-type Digital Coaxial Connector
2. Toslink® Digital Optical Connector
3. RCA-type Analog Left/Right Connectors
G. Channel Select Switch
A
B
C
1. Connect one end of the
Toslink® Digital Optical
TRANSMITTER
A
C
7
V
C
H
A
N
N
E
L
D
IG IT A L 1
D
IG IT A L 2
A
N A L O G 3
Cable (Q) to the
DIGITAL OPTICAL
A
B
C
E
F1 F2 F3
A
C
7
V
OUTPUT of your
D
IG IT A L 1
D
IG IT A L 2
A
N
A L O G 3
audio/video equipment.
2. Connect the other end
of the Toslink® Digital
Optical Cable (Q) to the
Toslink® Digital Optical
Connector (F2) on the
transmitter marked
“Digital 2”.
H e a d p h o n e s :
DVD PLAYER
H. Battery Compartment
OUTPUT
COMPONENT VIDEO
J
I.
J.
Battery Compartment Cover
Self-adjusting Headband
RED
GREEN
BLUE
RIGHT
LEFT
VIDEO OPTICAL D-COAX
K. Power Indicator Light
L. Volume Control
M. ON/OFF/Tuning Control
N. Stereo Tuning Indicator Light
H
I
b. Connecting Using a Digital Coaxial Cable:
M
1. Connect one end of the
Digital Coaxial Cable
(not included) to the
DIGITAL COAXIAL
L
TRANSMITTER
K
N
C
H
A
N
N
E
L
A
B
C
A c c e s s o r ie s :
A
C
7
V
D
IG IT A L 1
D
IG IT A L 2
A
N
A
L
O
G
3
OUTPUT of your
O. Transmitter AC Power
Supply - 7V AC 1.4A
P. Rechargeable Batteries
3 AAA Ni-MH
Q. 3 ft. Toslink® Digital
Optical Cable
audio/video equipment.
2. Connect the other end of
the Digital Coaxial Cable
to the RCA-type Digital
Coaxial Connector (F1)
on the transmitter
P
O
DVD PLAYER
OUTPUT
COMPONENT VIDEO
RED
GREEN
BLUE
RIGHT
LEFT
VIDEO OPTICAL D-COAX
marked “Digital 1”.
Q
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iii. C o n n e c t in g t o A n a lo g C o m p o n e n t s :
C h a r g in g
t h e
B a t t e r ie s
III
You can connect the headphones to an analog device and listen to Dolby
Pro Logic recordings and compact discs.
Note: The rechargeable batteries included with this product must be
1. Connect one end of the
TRANSMITTER
charged for 10 hours before use.
Analog Audio Cable (not
C
H
A
N
N
E
L
A
B
C
included) to the RCA-TYPE
ANALOG AUDIO OUTPUT of
your audio/video equipment.
2. Connect the other end of
the Analog Audio Cable to
the RCA-type Analog
i. In s e r t in g t h e B a t t e r ie s in t o t h e H e a d p h o n e s :
A
C
7
V
D
IG IT A L 1
D
IG IT A L 2
A
N A L O G 3
1. Remove the Battery Compartment
Cover (I) by simultaneously
depressing the tab and pulling up on
the cover.
2. Pull the cloth strip across the Battery
Compartment (H) so the
VCR
OUTPUT
INPUT
LEF I EO
RIGHT
LEF
T
V
ID
EO
RIGHT
T
V
D
TV
OUT
ANTENNA
IN
Left/Right Connectors (F3)
on the transmitter marked
“Analog 3”.
Rechargeable Batteries (P) can be
inserted over the strip.
3. Insert the Rechargeable Batteries (P)
–
+
+
observing the polarity ("+" and "-") as
diagrammed inside the Battery
Compartment (H).
Note: When using a device with a variable analog output, make sure the
volume level is set to 1/2 to 2/3 volume. When using a variable level
output, noise may occur if the signal level is too weak or too strong. Adjust
the volume to eliminate the noise.
+
–
–
4. Replace the Battery Compartment
Cover (I).
ii. C h a r g in g t h e B a t t e r ie s w it h in t h e H e a d p h o n e s :
iv. C o n n e c t in g t h e P o w e r S u p p ly :
1. Place the headphones onto the
Transmitter, making sure the
1. Insert the 2.5mm barrel
TRANSMITTER
connector from the AC Power
Supply (O) into the AC Input
Jack (E).
C
H
A
N
N
E
L
charging contact on the left earcup is
sitting properly on the charging post
of the transmitter.
A
B
C
A
C
7
V
D
IG IT A L 1
D
IG IT A L 2
A
N
A
L
O
G
3
2. Plug the AC Power Supply
(O) into a standard electrical
wall outlet.
2. Allow the Rechargeable Batteries (P)
to fully charge for 10 hours before
using for the first time.
3. Place the headphones on the
transmitter when not in use. This will
ensure the batteries are always fully
charged for hours of entertainment.
The Rechargeable Batteries (P) use
S
S
1
2
3
high-capacity Ni-MH cells that allow
recharging without the memory
effect of Ni-CD cells.
Note: Make sure the electrical outlet is not a switched outlet - usually
designed to control a lamp - and remains ON at all times. This is important,
as the transmitter base charges the headphones when not in use.
F o r c u s t o m e r s in t h e U S A a n d C A N A D A
RECYCLING NICKEL METAL-HYDRIDE BATTERIES
Nickel Metal-Hydride (Ni-MH) batteries are recyclable. Acoustic Research asks you to help
preserve our environment and recycle any unwanted Ni-MH batteries at your nearest
recycling facility for proper disposal.
Acoustic Research participates in the Rechargeable Battery Recycling Corporation (RBRC)
program. If you need advise on proper disposal of the included Ni-MH batteries, please call
1-800-822-8837 (US and CANADA ONLY).
Caution: Do not handle damaged or leaking batteries.
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L is t e n in g
t o t h e
T r o u b le s h o o t in g
IV
VI
H e a d p h o n e s
1. Turn on the component you wish to listen to (DVD player, VCR, TV, or
another audio/video product).
2. Press the Input Select Switch (D) to choose the device you wish to listen to,
i.e., Digital 1, Digital 2, or Analog 3.
The following troubleshooting guide takes you through some of the most common issues
and solutions associated with the installation and/or operation of the Wireless Surround
Sound headphones.
Is s u e
C a u s e a n d S o lu t io n
3. Press the Surround Sound ON/OFF Switch (A) to turn the effect ON or
OFF depending on the source material you wish to listen to. The virtual
Surround Sound should be on for all Dolby Digital or Dolby Pro Logic
encoded source material. All stereo music CDs, cassette tapes, or AM/FM
radio should be experienced with the virtual Surround Sound OFF.
See Processing Modes below.
4. Turn the headphones ON by pressing the ON/OFF/Tuning Control (M).
The headphones may take a few seconds to tune.
5. Put the headphones on your head.
No Sound
• Check that the AC Power Supply (O) is fully inserted into the wall outlet
and the barrel connector from the AC Power Supply (O) is firmly
connected to AC Input Jack (E). When the AC Power Supply (O) is
properly connected and providing power, the Surround Sound ON/OFF
Light (B) and Analog Input Indicator Light (C3) should be ON prior to
making any selections.
• Check that the headphones are turned "ON" and the red Power Indicator
Light (K) is brightly lit.
• Check that the Rechargeable Batteries (P) are firmly seated in the Battery
Compartment (H) following the polarity markings in the Battery
Compartment (H).
6. Adjust the volume (L) to a comfortable listening level.
7. When finished, power down the headphones by depressing the
ON/OFF/Tuning Control (M) until the Power Indicator Light (K) is OFF.
• Check that the audio source (DVD player, TV, VCR) is turned "ON" and
providing sound as it normally should.
• Check that the headphone Volume Control (L) is turned up.
• If the Surround Sound LED (B) is blinking, this indicates that the input is
DTS encoded. This product does not decode DTS 5.1 encoded digital
signals. Refer to your DVD, Satellite, or other manual to change the audio
mode from DTS output to Dolby Digital or PCM output.
Note: Usually you can select among PCM, Dolby Digital and DTS output
formats on DVD players and satellite receivers.
• Check that the component’ s digital sampling rate output is 48K
samples/second or lower. This product does not support 96K
samples/second. Refer to the component's manual to change the audio
sampling rate output.
Note: The headphones must be OFF for the batteries to charge properly.
Make sure the Power Indicator Light (K) is OFF before charging.
P r o c e s s in g
V
M o d e s
1. For multi-channel inputs (Dolby Digital inputs), the "virtual mode"
processing uses 5.1 channel Dolby Digital decoding then virtual
processing to create a 2 channel 3-D room equivalent output.
Distortion/Static
• Check that the headphone Tuning Indicator Light (N) is illuminated. If
not, push the ON/OFF/Tuning Control (M) to manually search for the
channel. If it does not lock quickly, change the Channel Select Switch (G)
to one of the other two channels.
2. For multi-channel inputs (Dolby Digital inputs), the "stereo mode"
processing uses 5.1 channel Dolby Digital decoding/processing for any
number of channels to create a 2 channel equivalent output. If the multi-
channel input is stereo, then the 2 channel output is stereo (i.e., Dolby
Digital Stereo).
• Check the batteries - they may be weakening.
• Confirm the batteries are "good." When batteries begin to weaken, there
can be static breakup. If necessary, recharge the batteries.
• Change the physical location of the transmitter. Locate it as high and free
of obstruction as possible. Avoid placing the transmitter directly on top of
a TV.
3. For Analog or PCM inputs, the "virtual mode" processing uses Dolby Pro
Logic decoding then virtual processing to create a 2 channel 3-D room
equivalent output.
•
Check that the Digital Coaxial Output from the DVD, satellite, etc., is
not connected to the Analog Audio Inputs (F3).
4. For Analog or PCM inputs, the "stereo mode" processing uses direct
stereo decoding to create a 2 channel stereo output.
Sound from One • Check the left/right balance control on the audio source.
Earpiece Only
• Check that the Tuning Indicator Light (N) is illuminated.
• Check the batteries – they may be weakening.
Note: This product does not decode DTS 5.1 encoded digital signals.
• Check that both Analog Audio Input Connectors (F3) are properly
connected, and that the audio source (VCR, TV, etc.) is equipped with
Stereo Analog Audio Output.
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W a r r a n t y
S p e c if ic a t io n s
VII
VIII
ONE YEAR WARRANTY
H e a d p h o n e s :
Recoton Corporation (“Company”) warrants to the original retail purchaser of this
product that should the product or any part thereof be proven defective in material
or workmanship within one year from the date of original purchase, such defects will
be repaired or replaced, at the Company’s option, without charge for parts or labor.
Push-button tuning
40mm titanium-impregnated elements with neodymium magnets
Frequency response: 20Hz – 20kHz
To obtain replacement within the terms of this warranty, the product should be delivered,
transportation prepaid, to the Dealer where purchased or to the Company, along with proof of
date of purchase. Call 1-800-RECOTON to obtain information regarding the procedure for
proper return of your product, if your Dealer does not honor the warranty. This warranty is
valid in the USA and Canada only.
Tr a n s m it t e r :
Signal-to-Noise ratio: >70dB
Stereo separation: >35dB
Dolby Digital processor
THIS WARRANTY DOES NOT APPLY TO ANY PRODUCT OR PART THEREOF W HICH
HAS BEEN DAMAGED THROUGH ALTERATION, MISHANDLING, MISUSE, NEGLECT,
ACCIDENT, IMPROPER INSTALLATION OR UNAUTHORIZED REPAIR.
Virtual Surround Sound headphone technology
Effective transmitting range: 300 feet*
Three separate transmission channels
20 bit ADC/DAC
Optical input connector conforms to EIAJ standard CP-1201
Compatible digital audio sampling rates: 32K, 44.1K, 48K samples/second
Dolby Digital in IEC 1937 format (formerly IEC 958 Annex B) as specified in
ATSC A/52 Annex B
THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING W ITHOUT LIMITATION THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
AND ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR
TORT, W HETHER OR NOT ARISING FROM THE COMPANY’S NEGLIGENCE, ACTUAL OR
IMPUTED. NO PERSON OR REPRESENTATIVE IS AUTHORIZED TO ASSUME FOR THE
COMPANY ANY OTHER LIABILITY IN CONNECTION W ITH THE SALE OF THIS
PRODUCT. IN NO EVENT SHALL COMPANY BE LIABLE FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES.
Th is w arran t y g ives you sp ecific leg al rig h t s an d you m ay also h ave ot h er rig h t s
w h ich vary from st at e t o st at e/ p rovin ce t o p rovin ce, so som e of t h e ab ove
lim it at ion s or
PCM in AES/EBU format
exclusion s m ay n ot ap p ly t o you.
In c lu d e d In s id e :
NON-WARRANTY SERVICE
If non-warranty service is required, the product may be sent to the Company for repair/
replacement, transportation prepaid, by calling 1-800-RECOTON for details, complete
instructions, and service fee charges.
3-foot premium digital optical cable with Toslink® connectors
7V AC 1.4A UL Listed power supply
Three AAA Nickel Metal Hydride (Ni-MH) rechargeable batteries
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.
Changes or modifications not expressly approved by the party responsible
for compliance could void the users authority to operate the equipment.
Features and specifications subject to change without notice.
* Range may vary according to environment.
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