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KMS-3000/KMS-2500

Karaoke Speaker System

Thank you for selecting the Yamaha Karaoke Speaker System.

PRECAUTIONS

CONNECTING TO YOUR AMPLIFIER

OWNER’S MANUAL

English

Read this before using the speaker.

To assure the finest performance, please read this manual carefully. Keep it in a safe place for 

future reference.

Install the speaker 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 the speaker to rain or water.

To prevent the enclosure from warping or discoloring, do not place the speaker where it will 

be exposed to direct sunlight or excessive humidity.

Do not place the following objects on the speaker:

Glass, china, etc.

If glass etc. falls by vibrations and breaks, it may cause personal injury.

A burning candle etc.

If the candle falls by vibrations, it may cause fire and personal injury.

A vessel with water in it

If the vessel falls by vibrations and water spills, it may cause damage to the speaker, and/or 

you may get an electric shock.

Do not place the speaker where foreign objects such as water drips might fall. It might cause 

a fire, damage to the speaker, and/or personal injury.

Do not place the speaker where it is liable to be knocked over or struck by falling objects. 

Stable placement will also ensure better sound performance.

Placing the speaker on the same shelf or rack as the turntable can result in feedback.

Any time you note distortion, reduce the volume control on your amplifier to a lower setting. 

Never allow your amplifier to be driven into “clipping”. Otherwise the speaker may be 

damaged.

When using an amplifier with a rated output power higher than the nominal input power of 

the speaker, care should be taken never to exceed the speaker’s maximum input.

Do not attempt to clean the speaker with chemical solvents as this might damage the finish. 

Use a clean, dry cloth.

Do not attempt to modify or fix the speaker. Contact qualified Yamaha service personnel 

when any service is needed. The cabinet should never be opened for any reasons.

As this unit is heavy, whenever it is moved, two people are required to transport it safely.

Placing the speaker too close to a CRT-type TV may impair the picture color or cause a 

buzzing noise. In this case, move the speaker away from the TV. This is not an issue with 

LCD and plasma TVs.

Secure placement or installation is the owner’s responsibility. Yamaha shall 

not be liable for any accident caused by improper placement or installation of 

the speaker.

Caution‌

BEFORE MAKING CONNECTIONS, MAKE SURE THAT THE AMPLIFIER IS SWITCHED OFF.

Connect the cables as shown below.

KMS-3000

KMS-2500

Type

3way bass reflex / Non magnetic shielding

Driver

Tweeter

2.5cm (1") horn type ×1

Middle

12cm (4-4/5") cone type ×1

Woofer

30cm (12") cone type ×1 25cm (10") cone type ×1

Impedance

Nominal 8 

W

Frequency response

45 Hz to 30 kHz (-10 dB) 

80 kHz (-30 dB)

50 Hz to 30 kHz (-10 dB) 

80 kHz (-30 dB)

Crossover frequency

1.5 kHz, 4.5 kHz

1.5 kHz, 4.2 kHz

Rated input power

250 W

175 W

Maximum input power

1000 W

700 W

Sensitivity (2.83V, 1m)

89 dB

88 dB

KMS-3000

KMS-2500

Input terminal

Screw / Banana

Dimensions  

(W × H × D)

581×380×373.5 mm

22-7/8"×14-15/16"×14-7/10"

521×340×343.5 mm

20-5/8"×13-3/8"×13-13/25"

Weight

18 kg (39.7 lbs)

14 kg (30.9 lbs)

Finish

PVC Sheet

Specifications are subject to change without notice due to product improvements.
Care should be taken not to exceed the input power values noted above.
The woofer employs a material for the surround to achieve high sound 
quality. The useful life of the speaker surround depends on usage conditions 
and environment (especially ultraviolet radiation exposure and humidity), 
etc. When the speaker surround reaches the end of its useful life, refer to your 
dealer for replacement.



SPECIFICATIONS

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/ EC.
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 handling.
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.

You can also use the screw holes on the top of the speaker for installing the 
speaker on the ceiling by using commercially available mounting brackets.
To fix the speaker to a mounting bracket, use the screws inserted to the screw 
holes of the speaker as the factory default status. If you use the commercially 
available screws, use the screws that matches to the following specifications:

Screw type ............................................. M8
Screw length ......... 35 mm (1-3/8") or more

100 mm (3-7/8")

100 mm (3-7/8")

70 mm (2-7/8")

KMS-3000

KMS-2500

Caution

The required length of a screw differs depending on the mounting bracket to 
be used. Select a screw which is suitable for use with the mounting bracket 
and can be fully inserted into the hole on the speaker.
As this product is heavy, do not attach them to thin plywoods or soft wall 
surface materials, as the screws may tear free from flimsy surfaces, causing 
the speaker to fall and be damaged, or result in personal injury.
Do not fasten the speaker to the ceiling with nails, adhesives, or other 
unsound hardware. Long-term use and vibrations may cause them to pull 
free.
To avoid accidents resulting from tripping over loose speaker cables, fix 
these to the wall along with the speaker.

MOUNTING THE SPEAKER TO A CEILING

REMOVING THE SPEAKER GRILLE

  How to connect the speaker cables

KMS-3000/ 

KMS-2500 (R)

Speaker output 
terminals of the 
amplifier

Tighten

Loosen

KMS-3000/ 

KMS-2500 (L)

  When connecting the speaker cable

Notes

Do not let the bare speaker wires touch 
each other as this could damage the speaker 
or the amplifier.
Make sure you connect the speakers with 
the correct polarity—positive (+) terminals 
to positive (+) terminals, and negative (-) 
terminals to negative (-) terminals. If you 
get them crossed over, the sound will be 
unnatural and lack bass.
Refer to the owner’s manual that came with 
your amplifier.

Banana plug

1

2

  When using a banana plug

1.

 Remove the side of the fabric speaker grille.

 

 

2.

 Put your hands inside from the sides of the fabric speaker grille and remove 

the fabric front speaker grille by pushing up the other side.

 

Note

Be careful not to scratch yourself with the edge of the speaker grille.

10 mm

Amplifier

Rear panel

Note

Do not insert the insulation into the hole. Sound may not 
be produced.

Remove 10 mm (3/8") of insulation,  

and twist the conductors.

Loosen the terminal knob.

Insert the bare wire.

Tighten the knob and secure the cable.

Test the firmness of the connection by 

pulling lightly.

1.

2.
3.
4.
5.

1

2

3

4

Top panel

3.

 Remove the 4 screws that hold the metal speaker grille.

 

4.

 Remove the metal speaker grille.

 

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