Yamaha 120T Owner`s manual

Caisson de grave
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
Explanation of Graphical Symbols
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert you to the presence of uninsulated
"dangerous voltage" within the product's
enclosure that may be of sufficient
magnitude to constitute a risk of electric
shock to persons.
The exclamation point within an equilateral
triangle is intended to alert you to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
accordance with the manufacturer’s instructions.
8 Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9 Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If
the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10 Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
Please record the serial number of this system in the
space below.
Serial No.:
The serial number is located on the rear of the main
Retain this Owner’s Manual in a safe place for future
11 Only use attachments/accessories specified by the
12 Use only with the cart, stand,
tripod, bracket, or table
specified by the manufacturer,
or sold with the apparatus.
When a cart is used, use
caution when moving the cart/
apparatus combination to
avoid injury from tip-over.
13 Unplug this apparatus during lightning storms or when
unused for long periods of time.
14 Refer all servicing to qualified 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.
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FCC INFORMATION (for US customers)
We Want You Listening For A
This product, when installed as indicated in the
instructions contained in this manual, meets FCC
requirements. Modifications not expressly
approved by Yamaha may void your authority,
granted by the FCC, to use the product.
2 IMPORTANT : When connecting this product to
accessories and/or another product use only high
quality shielded cables. Cable/s supplied with this
product MUST be used. Follow all installation
instructions. Failure to follow instructions could
void your FCC authorization to use this product in
the USA.
3 NOTE : This product has been tested and found to
comply with the requirements listed in FCC
Regulations, Part 15 for Class “B” digital devices.
Compliance with these requirements provides a
reasonable level of assurance that your use of this
product in a residential environment will not result
in harmful interference with other electronic
This equipment generates/uses radio frequencies and,
if not installed and used according to the instructions
found in the users manual, may cause interference
harmful to the operation of other electronic devices.
Compliance with FCC regulations does not guarantee
that interference will not occur in all installations. If
this product is found to be the source of interference,
which can be determined by turning the unit “OFF”
and “ON”, please try to eliminate the problem by using
one of the following measures:
Relocate either this product or the device that is being
affected by the interference.
Utilize power outlets that are on different branch
(circuit breaker or fuse) circuits or install AC line filter/
In the case of radio or TV interference, relocate/
reorient the antenna. If the antenna lead-in is 300 ohm
ribbon lead, change the lead-in to coaxial type cable.
If these corrective measures do not produce
satisfactory results, please contact the local retailer
authorized to distribute this type of product. If you can
not locate the appropriate retailer, please contact
Yamaha Electronics Corp., U.S.A. 6660 Orangethorpe
Ave, Buena Park, CA 90620.
The above statements apply ONLY to those products
distributed by Yamaha Corporation of America or its
YAMAHA and the Electronic Industries Association’s
Consumer Electronics Group want you to get the most out
of your equipment by playing it at a safe level. One that lets
the sound come through loud and clear without annoying
blaring or distortion – and, most importantly, without
affecting your sensitive hearing.
Since hearing damage from loud
sounds is often undetectable until it is
too late, YAMAHA and the
Electronic Industries Association’s
Consumer Electronics Group
recommend you to avoid prolonged
exposure from excessive volume
Information for Users on Collection and Disposal of
Old Equipment
This symbol on the products,
packaging, and/or accompanying
documents means that used electrical
and electronic products should not be
mixed with general household waste.
For proper treatment, recovery and
recycling of old products, please take
them to applicable collection points, in
accordance with your national
legislation and the Directives 2002/96/
By disposing of these products
correctly, you will help to save valuable
resources and prevent any potential
negative effects on human health and
the environment which could otherwise
arise from inappropriate waste
For more information about collection
and recycling of old products, please
contact your local municipality, your
waste disposal service or the point of
sale where you purchased the items.
[Information on Disposal in other
Countries outside the European Union]
This symbol is only valid in the
European Union. If you wish to discard
these items, please contact your local
authorities or dealer and ask for the
correct method of disposal.
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Thank you for selecting this YAMAHA product.
CAUTION: Read this before operating your unit
Please read the following operating precautions before use.
YAMAHA will not be held responsible for any damage
and/or injury caused by not following the cautions below.
• To assure the finest performance, please read this
manual carefully. Keep it in a safe place for future
• Install this unit in a cool, dry, clean place - away from
windows, heat sources, sources of excessive vibration,
dust, moisture and cold. Avoid sources of humming
(transformers, motors). To prevent fire or electrical
shock, do not expose this unit to rain or water.
• Never open the cabinet. If something drops into the set,
contact your dealer.
• The voltage to be used must be the same as that specified
on the rear panel. Using this unit with a higher voltage
than specified is dangerous and may cause a fire and/or
electric shock.
• To reduce the risk or fire or electric shock, do not expose
this unit to rain or moisture.
• Do not use force on switches, controls or connection
wires. When moving the unit, first disconnect the power
plug and the wires connected to other equipment. Never
pull the wires themselves.
• When not planning to use this unit for a long period (ie.,
vacation, etc.), disconnect the AC power plug from the
wall outlet.
• To prevent lightning damage, disconnect the AC power
plug when there is an electric storm.
• Since this unit has a built-in power amplifier, heat will
radiate from the rear panel. Place the unit apart from the
walls, allowing at least 20 cm of space above, behind and
on both sides of the unit to prevent fire or damage.
Furthermore, do not position with the rear panel facing
down on the floor or other surfaces.
• Do not cover the rear panel of this unit with a newspaper,
a tablecloth, a curtain, etc., in order not to obstruct heat
radiation. If the temperature inside the unit rises, it may
cause fire, damage to the unit and/or personal injury.
• Do not place the following objects on this unit:
Glass, china, small metallic, etc.
If glass, etc., falls as a result of vibrations and breaks,
it may cause bodily injury.
A burning candle etc.
If the candle falls as a result of vibration, it may cause
fire and bodily injury.
A vessel containing water
If the vessel falls as a result of vibration and water
spills, it may cause damage to the speaker, and/or you
may get an electric shock.
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• Do not place this unit where foreign material, such as
dripping water. It might cause fire, damage to this unit,
and/or personal injury.
• Never put a hand or a foreign object into the YST port
located on the right side of this unit. When moving this
unit, do not hold the port, as it might cause personal
injury and/or damage to this unit.
• Never place a fragile object near the YST port of this
unit. If the object falls or drops as a result of the air
pressure, it may cause damage to the unit and/or personal
• Never open the cabinet. It might cause an electric shock,
since this unit uses a high voltage. It might also cause
personal injury and/or damage to this unit.
• When using a humidifier, be sure to avoid condensation
inside this unit by allowing enough space around this
unit or avoiding excess humidification. Condensation
might cause fire, damage to this unit, and/or electric
• Super-bass frequencies reproduced by this unit may
cause a turntable to generate a howling sound. In such a
case, move this unit away from the turntable.
• This unit may be damaged if certain sounds are
continuously output at high volume level. For example,
if 20 Hz - 50 Hz sine waves from a test disc, bass sounds
from electronic instruments, etc., are continuously
output, or when the stylus of a turntable touches the
surface of a disc, reduce the volume level to prevent this
unit from being damaged.
• If you hear distortion (i.e., unnatural, intermittent
“rapping” or “hammering” sounds) coming from this
unit, reduce the volume level. Extremely loud playing of
a movie soundtrack’s low frequency, bass-heavy sounds
or similarly loud popular music passages can damage
this speaker system.
• Vibration generated by super-bass frequencies may
distort images on a TV. In such a case, move this unit
away from the TV set.
• Do not attempt to clean this unit with chemical solvents
as this might damage the finish. Use a clean, dry cloth.
• Be sure to read the “TROUBLESHOOTING” section
regarding common operating errors before concluding
that the unit is faulty.
• Install this unit near the wall outlet and where the AC
power plug can be reached easily.
• Secure placement or installation is the owner’s
responsibility. YAMAHA shall not be liable for any
accident caused by improper placement or
installation of speakers.
Be sure to allow spaces of at least 20 cm above, behind
and on both sides of the unit.
(Asia and General models only)
The voltage selector switch on the rear panel of this
unit must be set to your local main voltage BEFORE
plugging this unit into the AC main supply. Voltages
are 110-120/220-240 V AC, 50/60 Hz.
This unit is not disconnected from the AC power
source as long as it is connected to the wall outlet, even
if this unit itself is turned off. In this state, this unit is
designed to consume a very small quantity of power.
This unit features a magnetically shielded design,
however, there is still a chance that placing it too close
to a TV set might impair picture color. Should this
happen, move this unit away from the TV set.
For U.K. customers
If the socket outlets in the home are not suitable for the
plug supplied with this appliance, it should be cut off and
an appropriate 3 pin plug fitted. For details, refer to the
instructions described below.
Note: The plug severed from the mains lead must be
destroyed, as a plug with bared flexible cord is hazardous
if engaged in a live socket outlet.
FEATURES......................................................................... 2
SUPPLIED ACCESSORIES............................................... 2
ATTACHING THE NON-SKID PADS ............................. 2
PLACEMENT..................................................................... 3
CONTROLS AND THEIR FUNCTIONS.......................... 3
CONNECTIONS................................................................. 4
Connecting to line output (pin jack) terminals of the
amplifier..................................................................... 4
Plug in the subwoofer to the AC outlet .............................. 4
Frequency characteristic ............................................ 4
TECHNOLOGY II.............................................................. 5
TROUBLESHOOTING ...................................................... 6
SPECIFICATIONS ............................................................. 7
Brown: LIVE
As the colours of the wires in the mains lead of this
apparatus may not correspond with the coloured
markings identifying the terminals in your plug,
proceed as follows: The wire which is coloured BLUE
must be connected to the terminal which is marked
with the letter N or coloured BLACK. The wire which
is coloured BROWN must be connected to the
terminal which is marked with the letter L or coloured
RED. Make sure that neither wire is connected to the
earth terminal of a three pin plug.
For Canadian Customers
To prevent electric shock, match wide blade of plug to
wide slot and fully insert.
This Class B digital apparatus complies with Canadian
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• This subwoofer employs Advanced Yamaha Active
Servo Technology II, which Yamaha has developed for
the production of higher quality, super-bass sound.
(Refer to page 5 for details on Advanced Yamaha Active
Servo Technology II.) This super-bass sound adds a
more realistic, theater-in-the-home effect to your audio
• This subwoofer can be easily added to your existing
audio system by connecting to either the speaker
terminals or the line output (pin jack) terminals of the
• This subwoofer system is equipped with a linear port
unique to Yamaha that provides smooth bass response
during playback, minimizing extraneous noise not
included in the original input signal.
After unpacking, check that the following parts are
Non-skid pads
To enjoy the high sound quality, stabilize the subwoofer
using the non-skid pads.
Attach the provided non-skid pads in the four corners of the
underside of the subwoofer to prevent the subwoofer from
moving as a result of vibration, etc.
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Power indicator
Lights up Green when the POWER switch is turned
ON; turns off when the POWER switch is turned OFF.
: subwoofer,
: front speaker)
The subwoofer will have a good effect on your audio
Using the subwoofer, it is recommended to place it on the
outside of either the right or the left front speaker. (See fig.
A .) The placement shown in fig. B is also possible,
however, if the subwoofer system is placed directly facing
the wall, the bass effect may suffer due to cancellation of
direct and reflected sounds. To prevent this from
happening, place the subwoofer system at an angle, as in
fig. A .
There may be a case that you cannot obtain enough
super-bass sounds from the subwoofer when listening
in the center of the room. This is because “standing
waves” have developed between two parallel walls and
cancel the bass sounds.
Used to connect the subwoofer with the subwoofer
terminal of the amplifier.
(Refer to “CONNECTIONS” for details.)
VOLUME control
Adjusts the volume level. Turn the control clockwise to
increase the volume, and counterclockwise to decrease
the volume.
POWER switch
Press this switch to the ON position to turn on the
power to the subwoofer. Press this switch again to set
it to the OFF position to turn off the power of the
(Asia and General models only)
If the preset setting of the switch is incorrect, set the
switch to the proper voltage (110-120/220-240V) of
your area.
Consult your dealer if you are unsure of the correct
Be sure to unplug the subwoofer before setting the
VOLTAGE SELECTOR switch correctly.
In such a case, place the subwoofer at an oblique angle
to the wall. It also may be necessary to break up the
parallel surfaces by placing bookshelves, etc. along the
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Caution: Unplug the subwoofer and other
audio/video components before making
Connecting to line output (pin jack)
terminals of the amplifier
Before using the subwoofer, adjust the subwoofer to obtain
the optimum volume balance between the subwoofer and
the front speakers by following the procedure described
To connect to an amplifier (or AV receiver), connect the
SUBWOOFER terminal on the rear of the amplifier (or AV
receiver) to the INPUT terminal of the subwoofer.
Amplifier (The rear panel of various
amplifiers may differ in appearance.)
Set the VOLUME control to minimum (0).
Turn on the power of all the other components.
Make sure that the POWER switch is set to the ON
* The Power indicator lights up in green.
Play a source containing low-frequency components
and adjust the amplifier’s volume control to the desired
listening level.
Increase the volume gradually to adjust the volume
balance between the subwoofer and the front speakers.
To enjoy natural bass sound, keep the subwoofer
volume at a level where it is barely distinguishable
from other speakers.
Adjust the volume of the entire sound system using the
amplifier's volume control.
It is recommended to set the VOLUME control about in
the middle position when using in a multi channel home
theater system.
Plug in the subwoofer to the AC outlet
After all connections are completed, plug the subwoofer
and other audio/video components into AC outlets.
Frequency characteristic
This subwoofer’s frequency characteristic
100 dB
To AC outlet
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500 Hz
* This diagram does not depict actual frequency response
In 1988, Yamaha brought to the marketplace speaker
systems utilizing YST (Yamaha Active Servo Technology)
to give powerful, high quality bass reproduction. This
technique uses a direct connection between the amplifier
and speaker, allowing accurate signal transmission and
precise speaker control.
Yamaha’s newly developed Advanced YST II adds many
refinements to Yamaha Active Servo Technology,
allowing better control of the forces driving the amplifier
and speaker. From the amplifier’s point of view, the
speaker impedance changes depending on the sound
frequency. Yamaha developed a new circuit design
combining negative-impedance and constant-current
drives, which provides a more stable performance and
clear bass reproduction, without any murkiness.
As this technology uses speaker units controlled by the
negative impedance drive of the amplifier and resonance
generated between the speaker cabinet volume and port, it
creates more resonant energy (the “air woofer” concept)
than the standard bass reflex method. This allows for bass
reproduction from much smaller cabinets than was
previously possible.
bass sound
Air woofer
(Helmholtz resonator)
Advanced impedance
Signals of low amplitude
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Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below, or
if the instructions given below do not help, disconnect the power cord and contact an authorized YAMAHA dealer or
service center.
What to Do
Power is not supplied even though the
POWER switch is set to the ON
The power plug is not securely
Connect it securely.
No sound.
The volume is set to minimum.
Raise the volume up.
Speaker cables are not connected
Connect them securely.
A source sound with little bass
frequency content is being played.
Play a source sound with bass
It is influenced by standing waves.
Reposition the subwoofer or break up
parallel surfaces by placing bookshelves,
etc., along the walls.
Sound level is too low.
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Type ......Advanced Yamaha Active Servo Technology II
Power Consumption ............................................... 40 W
Driver.......................................16 cm (6.5”) cone woofer
Magnetic shielding type
Dimensions (W × H × D)
.......................................166mm × 450 mm × 366 mm
(6-9/16” × 17-3/4” × 14-7/16”)
Amplifier Output (100 Hz, 5 ohms, 10% THD)
.................................................................................. 50 W
Frequency Response............................... 30 Hz - 160 Hz
Power Supply
USA and Canada models................... AC 120V, 60 Hz
U.K. and Europe models ................... AC 230V, 50 Hz
Australia model ................................. AC 240V, 50 Hz
China model ...................................... AC 220V, 50 Hz
Korea model ...................................... AC 220V, 60 Hz
Asia and General models
............................... AC 110-120/220-240 V, 50/60 Hz
Weight ...............................................10 kg (22 lbs. 1 oz.)
Please note that all specifications are subject to change
without notice.
Taking care of the subwoofer
• When you wipe this unit, do not use chemical
solvents (e.g., alcohol or thinners, etc.): this might
damage the finish. Use a clean, dry cloth. For
difficult soils, dampen a soft cloth in water, wring
it out, and then wipe with the cloth.
• (For polish-finished model) Bumping the surface of
the instrument with metal, porcelain, or other hard
objects can cause the finish to crack or peel. Use
Limited Guarantee for European Economic Area (EEA) and Switzerland
Thank you for having chosen a Yamaha product. In the unlikely event that your Yamaha product needs guarantee service, please contact the dealer from
whom it was purchased. If you experience any difficulty, please contact Yamaha representative office in your country. You can find full details on our
website (http://www.yamaha-hifi.com/ or http://www.yamaha-uk.com/ for U.K. resident).
The product is guaranteed to be free from defects in workmanship or materials for a period of two years from the date of the original purchase. Yamaha
undertakes, subject to the conditions listed below, to have the faulty product or any part(s) repaired, or replaced at Yamaha’s discretion, without any charge
for parts or labour. Yamaha reserves the right to replace a product with that of a similar kind and/or value and condition, where a model has been
discontinued or is considered uneconomic to repair.
1. The original invoice or sales receipt (showing date of purchase, product code and dealer’s name) MUST accompany the defective product, along with a
statement detailing the fault. In the absence of this clear proof of purchase, Yamaha reserves the right to refuse to provide free of charge service and the
product may be returned at the customer’s expense.
2. The product MUST have been purchased from an AUTHORISED Yamaha dealer within the European Economic Area (EEA) or Switzerland.
3. The product must not have been the subject of any modifications or alterations, unless authorised in writing by Yamaha.
4. The following are excluded from this guarantee:
a. Periodic maintenance and repair or replacement of parts due to normal wear and tear.
b. Damage resulting from:
(1) Repairs performed by the customer himself or by an unauthorised third party.
(2) Inadequate packaging or mishandling, when the product is in transit from the customer. Please note that it is the customer’s responsibility to
ensure the product is adequately packaged when returning the product for repair.
(3) Misuse, including but not limited to (a) failure to use the product for its normal purpose or in accordance with Yamaha’s instructions on the
proper use, maintenance and storage, and (b) installation or use of the product in a manner inconsistent with the technical or safety standards in
force in the country where it is used.
(4) Accidents, lightning, water, fire, improper ventilation, battery leakage or any cause beyond Yamaha’s control.
(5) Defects of the system into which this product is incorporated and/or incompatibility with third party products.
(6) Use of a product imported into the EEA and/or Switzerland, not by Yamaha, where that product does not conform to the technical or safety
standards of the country of use and/or to the standard specification of a product sold by Yamaha in the EEA and/or Switzerland.
(7) Non AV (Audio Visual) related products.
(Products subject to “Yamaha AV Guarantee Statement” are defined in our website at http://www.yamaha-hifi.com/ or
http://www.yamaha-uk.com/ for U.K. resident.)
5. Where the guarantee differs between the country of purchase and the country of use of the product, the guarantee of the country of use shall apply.
6. Yamaha may not be held responsible for any losses or damages, whether direct, consequential or otherwise, save for the repair or replacement of the
7. Please backup any custom settings or data, as Yamaha may not be held responsible for any alteration or loss to such settings or data.
8. This guarantee does not affect the consumer’s statutory rights under applicable national laws in force or the consumer’s rights against the dealer arising
from their sales/purchase contract.
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©2008 Yamaha Corporation All rights reserved.
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