GefenTV GTV-VOLCONT User manual

Auto Volume Stabilizer
GTV-VOLCONT
User Manual
Auto Volume Stabilizer
GTV-VOLCONT
User Manual

ASKING FOR ASSISTANCE
ASKING FOR ASSISTANCE
Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday thru Friday PST.
Write To:
Gefen LLC
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefentv.com
[e-mail] Notice
Gefen LLC reserves the right to make changes in the hardware, packaging and any accompanying
documentation without prior written notice.
GefenTV Auto Volume Stabilizer is a trademark of Gefen LLC
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.
© 2010 Gefen LLC, All Rights Reserved
All trademarks are the property of their respective owners.
Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday thru Friday PST.
Write To:
Gefen LLC
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefentv.com
[e-mail] Notice
Gefen LLC reserves the right to make changes in the hardware, packaging and any accompanying
documentation without prior written notice.
GefenTV Auto Volume Stabilizer is a trademark of Gefen LLC
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.
© 2010 Gefen LLC, All Rights Reserved
All trademarks are the property of their respective owners. Rev A1
Rev A1

1 Introduction
2 Operation Notes
3 Features
4 Panel Layout
5 Panel Descriptions
6 Connecting and operating the Auto Volume Stabilizer
7 Auto Volume Stabilizer Remote Description
8 Specifications
9 Warranty
1 Introduction
2 Operation Notes
3 Features
4 Panel Layout
5 Panel Descriptions
6 Connecting and operating the Auto Volume Stabilizer
7 Auto Volume Stabilizer Remote Description
8 Specifications
9 Warranty
CONTENTS
CONTENTS

1
1
INTRODUCTION
INTRODUCTION
Congratulations on your purchase of the GefenTV Auto Volume Stabilizer. Your complete satisfaction is very important
to us.
GefenTV
GefenTV is a unique product line catering to the growing needs for innovative home theater solutions. We specialize
in total integration for your home theater, while also focusing on going above and beyond customer expectations to
ensure you get the most from your hardware. We invite you to explore our distinct product line and hope you find your
solutions. Don’t see what you are looking for here? Please call us so we can better assist you with your particular
needs.
The GefenTV Auto Volume Stabilizer
Annoyed by loud commercials? Enjoy listening to the same volume levels when watching any TV program or during
commercials, no matter what is on. The GefenTVAuto Volume Stabilizer product is a high-quality volume stabilizer. It
actually makes the volume adjustments in such a subtle way that you won’t even notice the change.
An additional feature includes a bypass button that allows the pass-through of unmodified incoming audio. Using
Dolby Volume technology, the unit senses changes in volume levels, and then maintains a steady volume level for any
input sound coming from DVD, Blu-ray Disc or multimedia source. Listen to movies and TV shows easily without the
inconvenience of continuously fiddling with the volume levels.
How It Works
Place the GefenTV Auto Volume Stabilizer somewhere close to where you want to connect it. Connect the audio
source into the back of the unit (either digital audio or analog). Connect the audio output of the unit to an A/V receiver.
Connect the included 5V DC external power supply to the back of the unit. The LED in the front will light up red show-
ing that the unit is in “standby mode.” Next push the “Bypass” button or press the “Power” button on the supplied I/R
remote control, and the LED next to the “Bypass” button will go out while one of the three audio input LEDs will also
light up bright blue. This corresponds to the chosen audio input at the back. Press the audio selector button at the
back of the unit to select the audio input type.
Congratulations on your purchase of the GefenTV Auto Volume Stabilizer. Your complete satisfaction is very important
to us.
GefenTV
GefenTV is a unique product line catering to the growing needs for innovative home theater solutions. We specialize
in total integration for your home theater, while also focusing on going above and beyond customer expectations to
ensure you get the most from your hardware. We invite you to explore our distinct product line and hope you find your
solutions. Don’t see what you are looking for here? Please call us so we can better assist you with your particular
needs.
The GefenTV Auto Volume Stabilizer
Annoyed by loud commercials? Enjoy listening to the same volume levels when watching any TV program or during
commercials, no matter what is on. The GefenTVAuto Volume Stabilizer product is a high-quality volume stabilizer. It
actually makes the volume adjustments in such a subtle way that you won’t even notice the change.
An additional feature includes a bypass button that allows the pass-through of unmodified incoming audio. Using
Dolby Volume technology, the unit senses changes in volume levels, and then maintains a steady volume level for any
input sound coming from DVD, Blu-ray Disc or multimedia source. Listen to movies and TV shows easily without the
inconvenience of continuously fiddling with the volume levels.
How It Works
Place the GefenTV Auto Volume Stabilizer somewhere close to where you want to connect it. Connect the audio
source into the back of the unit (either digital audio or analog). Connect the audio output of the unit to an A/V receiver.
Connect the included 5V DC external power supply to the back of the unit. The LED in the front will light up red show-
ing that the unit is in “standby mode.” Next push the “Bypass” button or press the “Power” button on the supplied I/R
remote control, and the LED next to the “Bypass” button will go out while one of the three audio input LEDs will also
light up bright blue. This corresponds to the chosen audio input at the back. Press the audio selector button at the
back of the unit to select the audio input type.

READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE GEFENTV AUTO VOLUME STABILIZER
• GefenTV Auto Volume Stabilizer will use Dolby Volume technology to adjust volume automatically.
It is best used for TV programming where the level of sound rises and falls to an unacceptable
level.
• The device can be bypassed in situations where a wide dynamic range is appropriate (such as
movies and classical symphony concerts.)
• The Stabilizer is best installed next to the TV or audio receiver where the signal emanates. Then,
the remote can be used to control it from the comfort of an armchair.
• This unit will only accept and output 2-channel analog and digital audio formats. Discrete multi-
channel audio formats are not supported.
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE GEFENTV AUTO VOLUME STABILIZER
• GefenTV Auto Volume Stabilizer will use Dolby Volume technology to adjust volume automatically.
It is best used for TV programming where the level of sound rises and falls to an unacceptable
level.
• The device can be bypassed in situations where a wide dynamic range is appropriate (such as
movies and classical symphony concerts.)
• The Stabilizer is best installed next to the TV or audio receiver where the signal emanates. Then,
the remote can be used to control it from the comfort of an armchair.
• This unit will only accept and output 2-channel analog and digital audio formats. Discrete multi-
channel audio formats are not supported.
OPERATION NOTES
OPERATION NOTES
2
2

3
3
FEATURES
FEATURES
Features
• Dolby Volume certified
• Prevents fluctuations in audio volume using Dolby Volume technology
• Accepts and outputs 2-channel analog audio
• Accepts and outputs 2- channel TOSLINK and S/PDIF digital audio
• Boosts low and high-frequency content dynamically
• Volume Leveler: Enables consistent volume levels at all times between TV channels and between
program materials
• Volume Modeler: Delivers the perception of a full-range audio experience at any volume level
• Bypass Mode permits audio to pass through unchanged
Package Includes
(1) Auto Volume Stabilizer
(1) Analog Audio L/R Cable
(1) 5V DC Power Supply
(1) IR Remote
(1) User’s Manual
Features
• Dolby Volume certified
• Prevents fluctuations in audio volume using Dolby Volume technology
• Accepts and outputs 2-channel analog audio
• Accepts and outputs 2- channel TOSLINK and S/PDIF digital audio
• Boosts low and high-frequency content dynamically
• Volume Leveler: Enables consistent volume levels at all times between TV channels and between
program materials
• Volume Modeler: Delivers the perception of a full-range audio experience at any volume level
• Bypass Mode permits audio to pass through unchanged
Package Includes
(1) Auto Volume Stabilizer
(1) Analog Audio L/R Cable
(1) 5V DC Power Supply
(1) IR Remote
(1) User’s Manual

4
4
PANEL LAYOUT
PANEL LAYOUT
Front Panel
Front Panel
Back Panel
Back Panel
1
1
2
2
5
5
6
6
3
3
4
4
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14

5
5
PANEL DESCRIPTIONS
PANEL DESCRIPTIONS
1 Bypass Button
Used to place the unit in Bypass Mode,
allowing the signal to pass through
unmodified.
2 Bypass LED
Indicated the current state of the unit. See
Page 6 for details.
3 I/R Port
Used to communicate with the included I/R
remote
4 L/R LED
The LED will turn blue to indicate the audio
source is set to L/R analog
5 Coax (S/PDIF) LED
Turns blue to indicate that the audio input is
set to Coax
6 Optical (TOSLINK) LED
Turns blue to indicate that the audio input is
set to Optical
7 5V DC Power Receptacle
Connect the included 5V DC power supply to
this port
8 Input Select Button
Used to select between L/R audio, Coax, and
Optical inputs
9 Optical (TOSLINK) Input
Connect an Optical cable from this port to the
Optical output port on theA/V equipment
10 Coax (S/PDIF) Input
Connect a Coax cable from this port to a Coax
input port on theA/V equipment
11 Analog L/R (RCA) Input
Connect an RCAL/R stereo pair from these
ports to the RCAL/R output pair on the source
device
12 Optical (TOSLINK) Output
Connect an optical cable from this port to the
Optical input port on theA/V equipment
13 Coax (S/PDIF) Output
Connect a Coax cable from this port to a Coax
input port on theA/V equipment
14 Analog L/R (RCA) Output
Connect a L/R RCAstereo pair from this output
to a L/R RCAstereo input pair on theA/V
equipment
1 Bypass Button
Used to place the unit in Bypass Mode,
allowing the signal to pass through
unmodified.
2 Bypass LED
Indicated the current state of the unit. See
Page 6 for details.
3 I/R Port
Used to communicate with the included I/R
remote
4 L/R LED
The LED will turn blue to indicate the audio
source is set to L/R analog
5 Coax (S/PDIF) LED
Turns blue to indicate that the audio input is
set to Coax
6 Optical (TOSLINK) LED
Turns blue to indicate that the audio input is
set to Optical
7 5V DC Power Receptacle
Connect the included 5V DC power supply to
this port
8 Input Select Button
Used to select between L/R audio, Coax, and
Optical inputs
9 Optical (TOSLINK) Input
Connect an Optical cable from this port to the
Optical output port on theA/V equipment
10 Coax (S/PDIF) Input
Connect a Coax cable from this port to a Coax
input port on theA/V equipment
11 Analog L/R (RCA) Input
Connect an RCAL/R stereo pair from these
ports to the RCAL/R output pair on the source
device
12 Optical (TOSLINK) Output
Connect an optical cable from this port to the
Optical input port on theA/V equipment
13 Coax (S/PDIF) Output
Connect a Coax cable from this port to a Coax
input port on theA/V equipment
14 Analog L/R (RCA) Output
Connect a L/R RCAstereo pair from this output
to a L/R RCAstereo input pair on theA/V
equipment

6
6
CONNECTING AND OPERATING THE AUTO VOLUME STABILIZER
CONNECTING AND OPERATING THE AUTO VOLUME STABILIZER
How to Connect the GefenTV Auto Volume Stabilizer
1. Connect the desired audio sources to the Audio Input section of the GefenTV Auto Volume Stabilizer
using the appropriate audio cables (e.g. Optical, Coax, or L/R analog audio).
2. Connect another set of audio cables (e.g. Optical, Coax, or L/R analog audio) from the Audio Output
section of the GefenTV Auto Volume Stabilizer to the A/V equipment (e.g. display)
3. Connect the included 5V DC power adapter to the power receptacle on the rear of GefenTV Auto
Volume Stabilizer. The LED next to the BYPASS button will turn red. This indicates that the unit is
in Standby Mode.
4. To turn the unit ON, press the BYPASS button. The LED next to the BYPASS button should now
turn off. The LED input indicator will now turn blue, indicating that the unit has been turned on. This
can also be accomplished by using STANDBY button on the IR remote.
5. Select the desired input source (e.g. Optical, Coax, or L/R) by pressing the INPUT SELECT button
on the back of the unit. The SELECT button on the I/R remote may also be used to select the input.
6. When the LED next to the BYPASS button is red, the unit is in Bypass Mode. This means that
Dolby Volume™ processing is disabled. This is recommended for movies or listening to music
where there is a wide dynamic range. The BYPASS button is used to toggle between Bypass Mode
(LED on) and Dolby Volume™ processing mode (LED off). The BYPASS button on the I/R remote
can also be used to toggle between these two modes.
7. In order to place the GefenTV Auto Volume Stabilizer in Standby Mode, press and hold the BYPASS
button on the front panel. Pressing the STANDBY button on the I/R remote can also be used to set
the unit into Standby Mode. The BYPASS button LED will be red when the unit is in Standby Mode.
NOTE: All outputs are live regardless of the selected input.
How to Connect the GefenTV Auto Volume Stabilizer
1. Connect the desired audio sources to the Audio Input section of the GefenTV Auto Volume Stabilizer
using the appropriate audio cables (e.g. Optical, Coax, or L/R analog audio).
2. Connect another set of audio cables (e.g. Optical, Coax, or L/R analog audio) from the Audio Output
section of the GefenTV Auto Volume Stabilizer to the A/V equipment (e.g. display)
3. Connect the included 5V DC power adapter to the power receptacle on the rear of GefenTV Auto
Volume Stabilizer. The LED next to the BYPASS button will turn red. This indicates that the unit is
in Standby Mode.
4. To turn the unit ON, press the BYPASS button. The LED next to the BYPASS button should now
turn off. The LED input indicator will now turn blue, indicating that the unit has been turned on. This
can also be accomplished by using STANDBY button on the IR remote.
5. Select the desired input source (e.g. Optical, Coax, or L/R) by pressing the INPUT SELECT button
on the back of the unit. The SELECT button on the I/R remote may also be used to select the input.
6. When the LED next to the BYPASS button is red, the unit is in Bypass Mode. This means that
Dolby Volume™ processing is disabled. This is recommended for movies or listening to music
where there is a wide dynamic range. The BYPASS button is used to toggle between Bypass Mode
(LED on) and Dolby Volume™ processing mode (LED off). The BYPASS button on the I/R remote
can also be used to toggle between these two modes.
7. In order to place the GefenTV Auto Volume Stabilizer in Standby Mode, press and hold the BYPASS
button on the front panel. Pressing the STANDBY button on the I/R remote can also be used to set
the unit into Standby Mode. The BYPASS button LED will be red when the unit is in Standby Mode.
NOTE: All outputs are live regardless of the selected input.

AUTO VOLUME STABILIZER REMOTE DESCRIPTION
AUTO VOLUME STABILIZER REMOTE DESCRIPTION
7
7
Power On/Off
Power On/Off
Insert Battery Underneath
Insert Battery Underneath
Bypass
Bypass
Select Input
Select Input

8
8
SPECIFICATIONS
SPECIFICATIONS
Input (analog) .........................................................................................................1x RCA-type connector
Input (digital)............................................................................................... 1x SPDIF RCA-type connector
Input (digital)................................................................................................1x TOSLINK optical connector
Output.....................................................................................................................1x RCA-type connector
Output......................................................................................................... 1x SPDIF RCA-type connector
Output..........................................................................................................1x TOSLINK optical connector
Power supply.....................................................................................................................................5V DC
Power Consumption (max).....................................................................................................................5W
Accepts................................................................................................... LPCM (2-Channel) or L/RAnalog
SNR...................................................................................................................................................>90dB
Frequency Response Deviation ................................................................................................. < +/-0.5dB
Distortion .....................................................................................< 0.001% at 0dBFS or 2vRMS Analog In
Audio In Clipping Level.................................................................................................................2.2VRMS
Input Impedance.................................................................................................................................... 47k
Max Output Level ....................................................................................................................1.51.7VRMS
Output Impedance.......................................................................................................................< 500ohm
Operating Temp.........................................................................................................................0°C ~ 40°C
Certifications...............................................................................................................UL, CE, EMC, RoHS
Input (analog) .........................................................................................................1x RCA-type connector
Input (digital)............................................................................................... 1x SPDIF RCA-type connector
Input (digital)................................................................................................1x TOSLINK optical connector
Output.....................................................................................................................1x RCA-type connector
Output......................................................................................................... 1x SPDIF RCA-type connector
Output..........................................................................................................1x TOSLINK optical connector
Power supply.....................................................................................................................................5V DC
Power Consumption (max).....................................................................................................................5W
Accepts................................................................................................... LPCM (2-Channel) or L/RAnalog
SNR...................................................................................................................................................>90dB
Frequency Response Deviation ................................................................................................. < +/-0.5dB
Distortion .....................................................................................< 0.001% at 0dBFS or 2vRMS Analog In
Audio In Clipping Level.................................................................................................................2.2VRMS
Input Impedance.................................................................................................................................... 47k
Max Output Level ....................................................................................................................1.51.7VRMS
Output Impedance.......................................................................................................................< 500ohm
Operating Temp.........................................................................................................................0°C ~ 40°C
Certifications...............................................................................................................UL, CE, EMC, RoHS