Owner’s Manual
Thank you for purchasing the Yamaha Silent Bass. In order to obtain the maximum performance and enjoyment from your Silent Bass, we urge you to read
this Owner’s Manual thoroughly before using the instrument. Please keep this
Owner’s Manual in a safe place for later reference.
Precautions .................................................................... 3
Main Body/Accessories ..................................................... 4
Nomenclature ........................................................................ 5
Setup ....................................................................................... 7
■ Tuning ......................................................................................... 7
■ Attaching the Frame Unit ............................................................ 9
■ About the End Pin ..................................................................... 10
■ Putting the Bass into the Soft Case .......................................... 10
■ Changing Strings ...................................................................... 11
■ About the Mute ......................................................................... 13
■ Attaching the Optional Accessories .......................................... 13
Power Supply ...................................................................... 14
Specifications ..................................................................... 15
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This product utilizes batteries or an external power supply (adaptor). DO NOT
connect this product to any power supply or adaptor other than one described
in the manual, on the name plate, or specifically recommended by Yamaha.
This product should be used only with the components supplied or; a cart,
rack, or stand that is recommended by Yamaha. If a cart, etc., is used, please
observe all safety markings and instructions that accompany the accessory
contained in this manual is believed to be correct at the time of printing. However,
Yamaha reserves the right to change or modify any of the specifications without
notice or obligation to update existing units.
Do not attempt to service this product beyond that described in the usermaintenance instructions. All other servicing should be referred to qualified
service personnel.
This product, either alone or in combination with an amplifier and headphones
or speaker/s, may be capable of producing sound levels that could cause
permanent hearing loss. DO NOT operate for long periods of time at a high
volume level or at a level that is uncomfortable. If you experience any hearing
loss or ringing in the ears, you should consult an audiologist.
IMPORTANT: The louder the sound, the shorter the time period before
damage occurs.
NOTICE: Service charges incurred due to a lack of knowledge relating to
how a function or effect works (when the unit is operating as designed) are
not covered by the manufacturer’s warranty, and are therefore the owner’s
responsibility. Please study this manual carefully and consult your dealer
before requesting service.
Battery Notice: This product MAY contain a small non-rechargeable
battery which (if applicable) is soldered in place. The average life span of this
type of battery is approximately five years. When replacement becomes
necessary, contact a qualified service representative to perform the replacement.
This product may also use “household” type batteries. Some of these may be
rechargeable. Make sure that the battery being charged is a rechargeable type
and that the charger is intended for the battery being charged.
When installing batteries, do not mix old batteries with new, or with batteries
of a different type. Batteries MUST be installed correctly. Mismatches or
incorrect installation may result in overheating and battery case rupture.
Warning: Do not attempt to disassemble or incinerate any battery. Keep all
batteries away from children. Dispose of used batteries promptly and as
regulated by the laws in your area. Note: Check with any retailer of household
type batteries in your area for battery disposal information.
Disposal Notice: Should this product become damaged beyond repair, or
for some reason its useful life is considered to be at an end, please observe all
local, state, and federal regulations that relate to the disposal of products that
contain lead, batteries, plastics, etc. If your dealer is unable to assist you, please
contact Yamaha directly.
NAMEPLATE LOCATION: The nameplate is located on the bottom of the
product. The model number, serial number, power requirements, etc., are
located on this plate. You should record the model number, serial number, and
the date of purchase in the spaces provided below and retain this manual as a
permanent record of your purchase.
Serial No.
ENVIRONMENTAL ISSUES: Yamaha strives to produce products that
are both user safe and environmentally friendly. We sincerely believe that our
products and the production methods used to produce them meet these goals.
In keeping with both the letter and the spirit of the law, we want you to be
aware of the following:
Purchase Date
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Your Silent Bass will give you years of reliable service if you follow the simple rules
given below:
■ Location
■ Handling and Transport
Do not expose it to the following conditions to avoid
deformation, discoloration, or more serious damage.
• Direct sunlight (e.g. near a window).
• High temperatures (e.g. near a heat source,
outside, or in a car during the daytime).
• Excessive humidity.
• Excessive dust.
• Strong vibration.
• Never apply excessive force to the controls,
connectors or other parts.
• Always unplug cables by gripping the plug firmly,
not by pulling on the cable.
• Disconnect all cables before moving the unit.
• Physical shocks caused by dropping, bumping, or
placing heavy objects on the unit can result in
scratches and more serious damage.
■ Cleaning
■ Power Supply
• Turn the power switch OFF when not in use.
• If you use an AC power adaptor, unplug the
adaptor from the AC outlet if not to be used for an
extended period of time.
• Unplug the AC power adaptor during electric
• Avoid plugging the AC power adaptor into the
same AC outlet as appliances with high power
consumption, such as electric heaters or ovens.
Also avoid using multi-plug adaptors since these
can result in reduced sound quality and possibly
• Clean the cabinet and panel with a dry soft cloth.
• A slightly damp cloth may be used to remove
stubborn grime and dirt.
• Never use cleaners such as alcohol or thinner.
• Avoid placing vinyl objects on top of the unit
(vinyl can stick to and discolor the surface).
■ Electrical Interference
• This unit contains electric circuitry and may cause
interference if placed too close to radio or
television receivers. If this occurs, move it further
away from the affected equipment.
■ Turn Power OFF When Making Connections
• To avoid damage to the Silent Bass and other
devices to which it is connected (a sound system,
for example), turn the power switches of all
related devices OFF prior to connecting or
disconnecting audio cables.
YAMAHA is not responsible for damage
caused by improper handling or operation.
Information for Users on Collection and Disposal of Old Equipment and used Batteries
These symbols on the products, packaging, and/or accompanying documents mean that used
electrical and electronic products and batteries should not be mixed with general household waste.
For proper treatment, recovery and recycling of old products and used batteries, please take them
to applicable collection points, in accordance with your national legislation and the Directives 2002/
96/EC and 2006/66/EC.
By disposing of these products and batteries 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 handling.
For more information about collection and recycling of old products and batteries, please contact
your local municipality, your waste disposal service or the point of sale where you purchased the
[For business users in the European Union]
If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for
further information.
[Information on Disposal in other Countries outside the European Union]
These symbols are 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.
Note for the battery symbol (bottom two symbol examples):
This symbol might be used in combination with a chemical symbol. In this case it complies with the
requirement set by the Directive for the chemical involved.
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Main Body/Accessories
After opening the packaging, please check that all the parts listed below are included.
• Main Body
• Frame Unit
• End Pin
• Mute
• Allen Wrench
• 6F22 (S-006P)
9V battery x1
• Soft Case
Optional Accessories
• Stand for Silent Bass (BST1)
• Knee support for Silent Bass (BKS2)
• Extension frame for Silent Bass (BEF2)
To purchase these optional accessories, please inquire at your
authorized Yamaha dealer.
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● Front
● Rear
Tuning peg
Frame Unit
Frame Unit
Frame Unit
Fixing Knob 1
4th string (E)
3rd string (A)
2nd string (D)
1st string (G)
→ See page 6.
Frame Unit
Fixing Knob 2
Battery Case/
Output Jack
(inside the slot
on the side of
the body)
→ See page 6.
Bridge seat
Tail wire
End pin stopper
End pin
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● Battery Case/Output Jack Section
• The Silent Bass does not produce sound when headphones
are plugged into the instrument’s Output Jack.
• When making connections to the Output Jack, make sure
that a standard monaural phone plug is used. The power is
switched ON when a plug is inserted into the Output Jack,
so using a cable with a stereo, balanced, or other type of
plug that is divided into three sections can result in poor
performance or damage to the instrument or other devices
connected to it.
6F22 (S-006P)
9V battery
Mixer, Recorder, Bass Amplifier, Powered Speaker,
Electric Tuner, etc.
● Controls
• To conserve battery power, the instrument is not equipped
with a power indicator, such as a lamp, etc., to indicate that
the power is ON.
• Before making any connections, make sure the volume is
turned down on the amplifier, powered speaker, etc. or its
power is switched OFF.
Adjusts the
Adjusts High
Rotate the VOLUME knob to adjust the volume to a suitable
• If the sound is distorted when playing strongly, try turning
the volume knob slightly to the left.
Adjusts Low
The power is switched ON when a standard phone plug is
inserted into the Output Jack.
Use the TREBLE knob to adjust (boost/cut) the tonal quality of the instrument’s upper frequencies, and the BASS knob
to adjust (boost/cut) the tonal quality of its lower frequencies.
• The sound may become distorted when boosting frequencies with the TREBLE or BASS knob. If so, slightly rotate
the knob to the left to reduce the frequency boost level of
the knob that is causing the distortion.
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■ Tuning
The Silent Bass is shipped from the factory with the bridge in place and the strings slightly
loosened. The bridge’s height is set to an average height.
Since the position of the bridge will sometimes shift during transport, please properly adjust
the position of the bridge before tuning the strings.
• The lower side of the bridge supports the 1st string (G), the higher
side supports the 4th string (E). When looking at the bridge from
the side, the surface that has a sharper curve should face the fingerboard. (Facing up when in the playing position). (Fig. 1)
• The bridge should be set so that the surface of the bridge facing
the tailpiece is at a right angle to the top surface on which the
bridge’s feet rest (Fig. 2).
1st string
4th string
* Make sure the bridge is positioned so that its legs do not come
in contact with the escutcheon (the plastic part).
• The Silent Bass is fitted with an adjustable bridge for adjusting
string height. Rotate the metal adjusters clockwise to lower the
bridge’s height, and counter-clockwise to raise it (Fig. 3).
[Fig. 1 : Looking from the tailpiece]
Metal adjusters
* The line where the instrument’s top meets the body
sides (line “A” in the figure above) and the top surface
on which the bridge stands (line “B” in the figure above)
are not parallel. When checking the bridge’s vertical
alignment, make sure it is compared to the top surface
(line “B”) on which the bridge stands.
[Fig. 2 : Bridge stands vertically]
Adjust to the same height.
[Fig. 3 : Adjusting bridge height]
• Before adjusting bridge height, loosening the strings to relieve pressure on the adjusters will make it
easier to rotate the adjusters. Rotating the adjusters with without reducing string tension can result in
damage to the bridge or strings, etc.
• When adjusting bridge height, make sure the height of both legs is kept the same. Increasing string
tension on legs that are unequal in height can result poor surface contact of the bridge’s feet, causing
inferior sound quality, noise, damage to the bridge, etc (Fig. 3 *1).
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• The strings are tuned to the following pitches. The 1st
string is tuned to G, the 2nd string to D, the 3rd string
to A, and the 4th string to E.
Use a piano, tuning fork, tuner, etc., and adjust the pitch
of each string using the tuning pegs.
Lower pitch
Raise pitch
2nd string (D)
1st string (G)
3rd string (A)
4th string (E)
• After tuning is complete, make sure that the tailpiece
side of the bridge is still properly aligned. If the bridge
is leaning in either direction, slightly loosen the strings
and carefully re-align the bridge using both hands.
• If, after tuning, the tailpiece is leaning to one side,
slightly loosen the strings and use both hands to adjust
the tailpiece so its sides are straight and even. After the
tailpiece is adjusted, increase string tension evenly and
retune. (Refer to the illustration shown below.)
• Make sure that the tail wire is properly positioned in the grooves on the saddle.
Make sure the
sides are even.
Tall wire
● Tuning machine tension adjustment
The tuning machine’s tension that regulates the amount of pressure required to turn the tuners can be adjusted using the supplied Allen wrench.
* If the tuning machine turns with very slight pressure
→ Rotate the adjustment screw to the right (clockwise: A).
* If the tension is tight and the tuning machine is hard to turn
→ Rotate the adjustment screw to the left (counter-clockwise: B).
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■ Attaching the Frame Unit
The Silent Bass is shipped from the factory with the Frame Unit removed from the main body.
Please properly attach the Frame Unit using the following procedure.
Open the upper arm support on the frame unit, until it comes in contact with the stopper.
With the support’s arm section (Fixing Knob 2) still closed, mount the frame unit onto the upper part of
the main body and gently slide it into position.
Tighten Fixing Knob 1.
Rotate the support arm section counter-clockwise to open it up, and insert the support’s lock (Fixing
Knob 2) into its receiver on the back of the Silent Bass.
Firmly tighten Fixing Knob 2 to secure the frame unit to the instrument.
When moving the frame unit’s parts, be careful not to pinch your fingers,
hands, etc.
Frame attachment is complete.
To remove the frame unit, simply reverse the procedure described above.
Slide onto body
Upper Arm Support
Fixing Knob 1
Arm Section
Fixing Knob 2
Fixing Knob 2
• Securely tighten Fixing Knobs 1 and 2. Using the instrument with the attachments loose can result in
parts rattling or making noise during performance.
• When transporting the instrument, always hold it by its neck or main body. Holding by the frame unit only
may result in damage to the frame unit.
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■ About the End Pin
The Silent Bass is shipped from the factory with its end
pin removed from the main body and stored separately
in the soft case. Before using the instrument, loosen the
end pin stopper and insert the end pin, then after determining a comfortable playing height, securely tighten the
end pin stopper.
• Make sure the end pin stopper is secured firmly to prevent
the instrument from falling while you play.
• For reasons of design and performance, the end pin is designed to fit into the instrument at an angle and can not be
fully inserted into the instrument’s body. Trying to force the
end pin all the way into the instrument, or subjecting the end
pin to strong impact can damage parts inside of the instrument. Always proceed slowly and carefully when inserting or
removing the end pin.
End Pin Stopper
End Pin
■ Putting the Bass into the Soft Case
When storing the bass in the supplied soft case, remove the frame unit and end pin from the
bass and store them in the case separately as shown in the illustration below.
• Use the Velcro cover to secure the end pin in place inside of the soft case.
• When putting the bow in the soft case, make sure that it is first put into the hard bow case, then place the
hard case in the pocket and secure with a Velcro® fastener (1 location).
Frame Unit
End Pin
Silent Bass Main Unit
Bow Pocket
The soft case does not fully protect parts such as the bridge from damage.
The soft case is meant for storing and transportation of the instrument and protects it from dust, etc. Do
not place the bridge so it is on the bottom of the case and do not cause damage to the instrument by
placing objects on top of the case, hitting it, etc.
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■ Changing Strings
As the strings get old, sound quality will gradually decrease, and it will become difficult to tune
the instrument. Change the strings as soon as you think they are getting old.
Make sure you purchase Double Bass strings. The Silent Bass uses a string length of 1,040
mm (41 inch).
• All strings should not be removed at the same time. Make sure strings are changed one at a time.
• The end of the strings are sharp and can cut fingers. Use caution when changing strings.
• When changing or adjusting strings, do not put your face close to the instrument. The string may suddenly break resulting in eye or other unexpected injuries.
● Winding the Strings
Hook the string’s ball end into the string hole on the tailpiece. Make sure that the ball end is securely
positioned in the end of the string hole slit.
* If the ball end is larger than the string hole, thread the opposite end of the string through the hole from
the back side of the tailpiece.
Pull the string down toward the end pin and wrap the string around the end of the tailpiece making sure
it fits into its corresponding groove at the bottom of the tailpiece. Pull the string up and over the bridge.
Ball End
Ball End
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Insert the end of the string into the hole on the peg, turn the peg and make one or two wraps to one side of
the hole as shown in the illustration below, then make the remaining wraps in the opposite direction.
When looking at the front of the instrument, the first couple of wraps on the 1st (G) and 2nd (D) strings
should be to the left of the hole, where as on the 3rd (A) and 4th (E) strings, the first wraps should be
made to the right.
2nd string (D)
Winding the 3rd
and 4th strings
Rotate the
tuning peg
as shown
Rotate the
tuning peg
as shown
Remaining winds
Winding the 1st
and 2nd strings
3rd string (A)
Wind once
or twice
1st string (G)
Wind once
or twice
Remaining winds
4th string (E)
• Adjust string length so that the string does not rub up against the peg box wall. Tuning the string if it is in
contact with the peg box wall can result in a broken string, etc.
Make sure the bridge is at a right angle.
Also, make sure each of the strings are positioned in their corresponding grooves.
* Make sure the side of the bridge facing the tailpiece is vertical when compared to the surface on which
the bridge stands.
Use a piano, tuning fork, tuner, etc., and adjust the pitch of each string using the tuning pegs.
* Refer to the “Tuning” section (page 7).
• When the instrument is not being used for an extended period of time, loosen the strings.
• The instrument can be played after making sure that the bridge is standing vertically when compared to
the surface on which the bridge stands. Playing the instrument with a leaning bridge can result in a
shorter bridge life, or poor sound quality.
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■ About the Mute
Since the Silent Bass is designed with a pickup system that picks up string vibration, the
system can sometimes pick up string vibrations that occur between the bridge and tailpiece.
If this is obvious, attach the supplied mute onto the strings as shown in the illustration below.
• The mute will have little effect if it is attached midway between the bridge and the tailpiece.
Please take note.
■ Attaching the Optional Accessories
[Fig. A]
● Knee Support for the Silent Bass (BKS2)
With the optional BKS2 Knee Support, the instrument
can be leaned against the left knee when playing while
sitting on a stool, etc.
As shown in Fig. A, align the end of the metal frame unit
with the matching indentation on the knee support, and
use the three screws to secure the support in place.
● Extension Frame for the Silent Bass (BEF2)
The optional BEF2 Extension Frame widens the frame
unit to provide greater instrument support.
As shown in Fig. B, use the two screws to secure the
support in place.
[Fig. B]
• Before attaching or removing optional parts, remove the frame unit from the instrument and place the
frame on a stable surface.
• Before playing the instrument, make sure that the optional parts are not loosely attached.
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Power Supply
The Silent Bass uses a battery as its power source.
Before installing or removing the battery, remove the cable from the output
On the backside of the instrument, push down on the battery case’s latch below the “OPEN” arrow
to remove the battery case.
• Be careful when removing the battery case. Depending upon the angle of the instrument, the
case can suddenly jump out.
Insert the supplied battery (6F22(S-006P)9V battery) into the case. Referring to the illustration
below, make sure that the battery is placed in the case with its poles (+/-) properly aligned.
Push the case into the slot until you hear the latch “click”.
6F22 (S-006P)
9V battery
Caution! When Inserting the Battery
In some cases, batteries other than the
supplied battery may be slightly short in
length resulting in poor conductivity (loss
of power). In this case, refer to the illustration on the left and use a spacer, such
as some thick paper or a piece of cardboard, between the end of the battery and
the battery case to hold the battery in
* For customers in the Netherlands
Bij dit produkt zijn batterijen geleverd.
Wanneer deze leeg zijn, moet u ze niet
weggooien maar inleveren als KCA.
When the battery is low, the lamp will dim and the sound may become distorted or noisy.
When these symptoms occur, please take note of the following precautions and replace the battery.
• Always follow the +/– signs when inserting the battery. Improper insertion may result in fire.
• To prevent possible damage to the unit due to battery leakage and unnecessary power drain, remove
the battery from the unit when it is not going to be used for an extended period of time.
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Spruce + Mahogany
Maple (height is adjustable)
Frame Unit
Beech + parts of Aluminum, etc.
Tuning Pegs
Custom Worm Gear Type
Tail Piece
Ebony (reverse type)
Contra Bass Strings (Ball-end type)
Piezo Pickup
• Volume
• Treble
• Bass
• Power switched ON/OFF with connection/disconnection of cable.
• 6F22(S-006P)/6LR61 9V battery x 1
Battery Life (Continuous Use)
Using Manganese battery: approximately 350 hours
Using Alkaline battery: approximately 500 hours
String Length
1,040 mm (41”)
Dimensions (L x W x H)
Size including attachments (with the Frame Unit and
End Pin at its shortest)
1,692 x 456 x 330 mm (66-5/8” x 17-15/16” x 13”)
Size of Main Body (without Frame Unit and End Pin)
1,392 122 x 230 mm (54-13/16” x 4-13/16” x 9”)
Size of Frame Unit (when folded)
465 x 145 x 129 mm (18-5/16” x 5-11/16” x 5-1/10”)
approximately 7.2 kg (15 lbs. 14 oz.)
* Design and specifications are subject to change without notice.
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