Gallo TR-3D User manual

TR-3D SUBWOOFER
OWNER’S GUIDE

CONTENTS
IMPORTANT SAFETY INSTRUCTIONS
INTRODUCTION
ABOUT YOUR SUBWOOFER
PLACEMENT OF SUBWOOFER
CONTROLS AND CONNECTIONS
2.1 SET UP
MULTI-CHANNEL SET UP
SPECIFICATIONS AND WARNING
TECHNICAL SUPPORT AND WARRANTY
3
4
5
6
7
8
10
11
12
13

4
IMPORTANT SAFETY INSTRUCTIONS
All safety instructions should be read and followed
before the product is operated.
WARNING
DO NOT OPEN OR REMOVE ANY COMPONENTS -
DANGER OF ELECTRICAL SHOCK. THERE ARE NO
USER SERVICEABLE PARTS INSIDE.
ALWAYS PROVIDE ADEQUATE VENTILATION AS THE
UNIT MAY BECOME HOT DURING USE. DO NOT
PLACE NEAR A HEAT SOURCE OR COVER.
FURTHER ADVICE
Do not use this product near water or moisture,
or heat sources like radiators.
Only use the power cable supplied.
Route the power cable away from areas where it
could be damaged or walked on.
Do not overload wall sockets or extension cords.
If there is any damage or failure, unplug the
subwoofer from the wall socket immediately
and consult qualified sources for advice.
In the event of a failure, contact your dealer,
distributor or Gallo Acoustics directly to arrange repair.
PRODUCT DISPOSAL INSTRUCTIONS
(WEEE DIRECTIVE)
The symbol shown here means that it is classed as
Electrical or Electronic Equipment and should not be
disposed with other household or commercial waste
at the end of its working life.
The Waste of Electrical and Electronic Equipment
(WEEE) Directive (2002/96/EC) has been put in place
to recycle products using best available recovery and
recycling techniques to minimise the impact on the
environment, treat any hazardous substances and
avoid the increasing landfill.
For more information please contact your local
authority or the retailer where the product was
purchased.

INTRODUCTION
Thank you for choosing Gallo Acoustics.
Please take the time to read and understand this guide
thoroughly before installing your subwoofer. This will
ensure that you achieve optimal performance without
the risk of causing damage to your subwoofer,
speakers or amplifier.
TR-3D FRONT TR-3D BACK
RUN-IN PERIOD
Your Gallo Acoustics subwoofer utilises proprietary
technologies that only reach their optimum
performance levels after a period of 60 - 80 hours
of use. During this run-in process the loudspeaker
driver will loosen-up, the patented S2 fill material
will settle, and your loudspeakers will develop the
acoustic characteristics that are our signature.
5

ABOUT YOUR SUBWOOFER
Your TR-3D subwoofer uses many proprietary
technologies to ensure the absolute best
performance can be delivered. These contribute
to an enhanced level of bass output, precision bass
reproduction and dynamic range not found in other
subwoofers of similar price and size.
Gallo Acoustics’ S2 technology is a simple yet
powerful approach to enhance low frequency
extension, whilst neutralising internal resonance.
This results in the woofer behaving as if it were in a
larger enclosure, allowing deeper and more powerful
bass than it ordinarily would produce. This technology
can also be found in all Gallo Acoustics loudspeakers,
and is precisely the innovation that allows Gallo
Acoustics loudspeakers to deliver surprisingly
full-range sound from compact enclosures.
For more information on Gallo Acoustics’ design and
technologies, please visit www.galloacoustics.com
6

SUB
SUB
PLACEMENT
The placement of your TR-3D subwoofer within the
room is not as critical as speaker placement, since
frequencies of 80Hz and below are non-directional.
However, there are several things you can do to help
you achieve the best performance from your subwoofer.
• Ensure that the PHASE control is used properly. As a
general rule, if the subwoofer is in front of the
listening position have the PHASE control at 0º.
If the subwoofer is behind the listening position,
then set the PHASE to 180º.
• The best performance is usually achieved by placing
the subwoofer between your front speakers, facing
the listening position.
• Placing near a rear wall will aid the bass response,
however avoid corner positioning if possible as this
will result in uneven bass response throughout the
room.
• Disconnecting your loudspeakers so you are only
listening to bass playback will help as you try to
find areas of the room where bass is overpowering,
or where bass is lacking.
Another tactic would be to select several positions
that will suit the aesthetics of the room, and try each
position in turn to see which position provides the best
response. This settings of the subwoofer can then be
tailored to suit the position.
7

CONTROLS AND CONNECTIONS
230V
115V
230V
115V
Input VoltagePower
Off
Auto
On
~100-120V/60Hz Fuse:T5.0AL/250V
~220-240V/50Hz Fuse:T2.5AL/250V
HIGH LEVEL OUT
HIGH LEVEL IN
L L
R R
L L
R R
LINE IN
LEVEL
MAX
LINE OUT
L
R
MIN
PHASE
0°
180°
BYPASS
CROSSOVER
BASS BOOST
+6dB
+0dB
+3dB
POWER
CROSSOVER
50Hz 180Hz
GALLO
ACOUSTICS
TR-3D
GALLOACOUSTICS.COM
SN # X X X X X X X
!
CAUTION
TO RECUCE THE RISK OF FIRE, REPLACE
WITH ONLY THE SAME TYPE AND RATING OF FUSE
POWERED SUBWOOFER
!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION VORSICHT
BEFORE OPENING
PULL MAIN PLUG VOR DEM ÖFFNEN NETZSTECKER ZIEHEN
WARNING: SHOCK HAZARD-DO NOT OPEN
AVIS:RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
8

CONTROLS
CROSSOVER
The CROSSOVER control is variable from 50Hz to 180Hz. In
simple terms, the subwoofer will play all frequencies below
the CROSSOVER setting.
LEVEL
The LEVEL control sets the volume of the subwoofer in
relation to the main speakers. Once set, volume will climb and
decrease along with your main system volume.
PHASE
The PHASE control allows you to adjust the phase of the
subwoofer relative to the main speakers. This helps when
positioning the subwoofer - in general, if the subwoofer is
in front of the listening position have the PHASE set to 0º. If
the subwoofer is behind the listening position, then set the
PHASE to 180º.
BYPASS/CROSSOVER
Activates the subwoofers built-in bass management, or
bypasses it. If your amplifier has bass control, like an AV
receiver, then set to BYPASS, otherwise set to CROSSOVER.
BASS BOOST
Allows for more convenient bass equalisation, increases bass
volume in relation to the main speakers without adjusting any
other controls.
POWER SWITCH
Set to either OFF, or AUTO ON. When set to AUTO ON, the
TR-3D will automatically detect a signal from the source
amplifier and, in turn, will power up the subwoofer. It will
also return to its standby mode automatically when the source
is no longer detected.
AC SELECTOR
This should be preset to your country of use. However you
can adjust this if you move to a country where a different AC
voltage is used. Note that you will also have to change the
internal fuse to suit the AC voltage.
9
CONNECTIONS
HIGH LEVEL IN/OUT
The HIGH LEVEL IN is used to connect your amplifier
to your subwoofer using speaker cables. You can then
connect a pair of speaker to the HIGH LEVEL OUT. This
will also activate the subwoofers built-in crossover, and
protect the speakers from the lowest frequencies.
LINE IN/OUT
This is used to connect your TR-3D to your amplifier
using a coaxial (RCA) cable. Connect the pre-out or LFE
(SUBWOOFER) output on your amplifier to the LINE IN
on the subwoofer. If required, you can connect the LINE
OUT to your power amplifier.
POWER CONNECTOR
Plug the AC power cable here, and then into a mains
supply, do this after all other connections have been
made. Ensure that the AC SELECTOR is preset to the
correct position for your country.
FUSE
The fuse protects the TR-3D subwoofer from abnormal
power conditions. It’s located under a small cover in the
subwoofer AC power socket. If the subwoofer fails to
power, check this fuse and only replace with the types
noted below :
115V AC Supply - T5A 250V fuse
230V AC Supply - T2.5A 250V fuse

2.1 SET UP
There are two options for connecting the subwoofer in a
2.1 system - either using the HIGH LEVEL IN or the LINE IN.
The style of speakers and amplifier you are using will dictate
which method of connection you will use.
When using Gallo Acoustics Micro or A’Diva speakers, or similar
compact loudspeakers, use the following method. This will run
the subwoofer and protect your speakers from the lowest
frequencies - ensure your subwoofer is set to CROSSOVER mode.
• Using speaker cables, connect the speaker outputs on your
stereo amplifier to the HIGH LEVEL IN on the subwoofer.
• Run a second set of speaker cables from the HIGH LEVEL OUT
on the subwoofer to your loudspeakers.
• Adjust the subwoofer’s CROSSOVER to around 100Hz.
• When music is playing, you can adjust the LEVEL control
to match the subwoofer and loudspeaker volume.
If your speakers can handle a full range signal, like our Strada 2
speakers, then you may wish to connect the subwoofer as
follows. Ensure the subwoofer is set to CROSSOVER mode.
• Run speaker cables from your amplifier to your loudspeakers.
• If your amplifier has a pre-out, then this can be used to
connect your amplifier to the subwoofer using a coaxial
(RCA) cable.
• If there is no pre-out, then you can run a second set of speaker
cables from your amplifier to the HIGH LEVEL IN of your
subwoofer.
• On the subwoofer adjust the CROSSOVER to around 100Hz,
once the system is playing music, you can adjust this to suit
your loudspeakers performance capabilities.
• When music is playing, you can adjust the LEVEL control to
match the subwoofer and loudspeaker volume.
AMPLIFIER
TR-3D SUBWOOFER
SPEAKER SPEAKER
AMPLIFIER
SPEAKER
TR-3D SUBWOOFER
SPEAKER
10
2.1 PRE-OUT
2.1

MULTI-CHANNEL SET UP
When using a multi-channel surround sound system, first
ensure that you are familiar with your amplifier’s functions
to ensure that the correct mode and settings are applied.
• Identify your AV amplifier’s SUBWOOFER or LFE output.
Connect this to the left LINE IN on the subwoofer using
an coaxial (RCA) cable.
Please note - You can use a Y-splitter to split the signal into both left and
right LINE IN on the subwoofer. Alternatively, some amplifiers have two
LFE (SUBWOOFER) outputs, which allows direct connection to both LINE IN
connectors on the subwoofer via a twin coaxial (RCA) cable.
• Make adjustments on your AV amplifier to ensure that
the correct frequency range is being distributed to your
satellite speakers and subwoofer.
For Gallo Acoustics Micro and A’Diva loudspeakers, use a small speaker
setting on your amplifier, to protect the loudspeakers from the lowest
frequencies.
• Switch the subwoofer into BYPASS mode, as the AV
amplifier will handle bass control and distribute the
frequencies accordingly.
• When music or a film is playing, adjust the LEVEL control
so the subwoofer volume matches the satellite speaker
volume.
Consult both your AV Amplifier and loudspeaker owner’s
guides for more detailed set up instructions of these
components.
SPEAKERS
AV AMPLIFIER
TR-3D SUBWOOFER
11

WARNING
Care must be taken positioning the subwoofer to ensure
that it won’t be damaged or knocked over.
If you are in any way unsure of the correct installation or
use then please consult qualified sources before taking
unnecessary risks.
The manufacturer, distributor or their agents cannot be
held responsible for any injury as a result of improper use
or installation of this product.
SPECIFICATIONS
Frequency Response 18Hz to 180kHz +/- 3db
Class D Digital Power Amp 300 watts RMS
Active low pass filter 50Hz to 180Hz, continually variable, with bypass
High Pass Filter 100Hz on High Level Output
Woofer 10” long throw, ceramic coated aluminium
Dimensions W - 27.5cm (10.75”)
H - 30.5cm (12”)
D - 34.5cm (13.5”)
Weight 12.7Kg
Enclosure Material Hardened steel
Warranty 2 years
12

13
TECHNICAL SUPPORT
Should you encounter problems using this product,
please contact your dealer or local distributor.
You can call Gallo Acoustics directly for technical
support on the following numbers:
UK
01555 666883
Outside UK
[phone]
United States, Canada and South America
866 427 3873
Alternatively, email -
[email protected]
WARRANTY
Anthony Gallo Acoustics Ltd warrants to the end user
that this product will be free from defects in materials
and workmanship in the course of normal use for a
period of five years from the date of purchase.
This guarantee covers breakdowns due to manufacturing
faults and does not apply in cases such as accidental
damage, general wear and tear, user negligence,
modification or repair not by Anthony Gallo
Acoustics Ltd.
To register your purchase please visit -
www.galloacoustics.com

14

ANTHONY GALLO ACOUSTICS LTD
THE INOX BUILDING
CALDWELLSIDE
LANARK
SCOTLAND
UNITED KINGDOM
ML11 7SR WWW.GALLOACOUSTICS.COM