Yamaha stagepas 250m User Manual

NOTE:   The mixer can also be used when installed in the speaker.

When you install the mixer into the speaker, make sure to match the indentations on the speaker cabinet to 

the corresponding parts on the mixer, and then turn each screw from OPEN to LOCK until it clicks.

→ STAGEPAS 250M 

The POWER indicator lights.

The POWER indicator turns off.

•  Is the included power cord correctly connected to a power outlet?

•  Is the vent on the top panel of the mixer blocked? Since inadequate ventilation can result in overheating the 

mixer, the power may be turned off automatically and the mixer may reset itself.

•  Is the LIMITER flashes continuously? If the internal power amplifier section is excessively overloaded, the 

power may be turned off automatically and the mixer may reset itself.

•  Are external instruments (including a microphone) or speakers correctly connected to the mixer?

•  Are the LEVEL controls of all relevant channels and/or the MASTER LEVEL control set to appropriate levels?

•  Is the SPEAKER jack connected to the included speaker (500S)?

•  Is the POWER indicator flashing? There may be a short in the speaker cable or the connection may be 

faulty. Check that the speaker cable is correctly connected to the mixer and reapply the power.

•  Is the CLICK switch (for headphones) set to OFF?

•  If sound is not still output, contact your Yamaha dealer.

•  Are the LEVEL controls of all relevant channels and/or the MASTER LEVEL control set to appropriate levels?

•  Are the MIC/LINE switches of each channels set appropriately?

•  Are both XLR type and phone type jacks on channels 1–2 being used (connected) at the same time? 

Please connect to only one of these jacks on each channel.

•  Is the input signal from the connected device set to an appropriate level?

•  Use channels 1 or 2, and set the LIMIT/COMP switches to COMP (     ). Compression may be effective in 

preventing distortion.

•  Are the LEVEL controls of all relevant channels and/or the MASTER LEVEL control set to appropriate levels?

•  Are the MIC/LINE switches of each channels set appropriately?

•  Are both XLR type and phone type jacks on channels 1–2 being used (connected) at the same time? 

Please connect to only one of these jacks on each channel.

•  Is the input signal from the connected device set to an appropriate level?

•  Is the PHANTOM switch set to ON when using a condenser microphone?

•  Are the REVERB switches of each channels set to ON (     )?

•  Is the REVERB control set to an appropriate level?

•  Is the SPEECH/MUSIC switch set to MUSIC (     )?

•  Are the Equalizer controls (HIGH/LOW) set to appropriate levels?

•  Is the SPEECH/MUSIC switch set to SPEECH (     )?

•  Are the Equalizer controls (HIGH/LOW) set to appropriate levels?

•  Connect a main mixer to the ST SUB OUT jack. The ST SUB OUT jack outputs the signal prior to routing 

through the MASTER LEVEL control. Adjust the level of output signal from the ST SUB OUT jack with the ST 

SUB OUT control. The ST SUB OUT control does not affect the MASTER LEVEL control. If only the L (left) 

ST SUB OUT jack is used, the mixer mixes the left and right signals and sends them to the jack.

U.R.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation

©2007 Yamaha Corporation

712MW-01A0 Printed in China

Thank you for your purchase of the Yamaha PORTABLE PA SYSTEM STAGEPAS 250M. The STAGEPAS 250M 

is a versatile, compact PA system consisting of a speaker and a mixer.  

In order to get the most out of your new STAGEPAS 250M and its sophisticated functions, we suggest you 

read through this manual thoroughly. Also keep it in a safe place for future reference.

● Two-way, 10-inch (25 cm) speaker system
  The built-in speaker delivers high-quality powerful sound from an exceptionally compact cabinet.  

The scratch-resistant speaker is rugged enough for outdoor use.

● Powered mixer
  The powered mixer is a convenient, high-performance all-in-one unit that includes EQ and reverb. With two 

monaural inputs and four stereo inputs, the STAGEPAS 250M can be connected to a wide range of 

instruments and devices.

● Convenient storage
  The STAGEPAS 250M can be used in even the most cramped quarters, inside or outside, since the mixer is 

built into the speaker cabinet.

Speaker (500S), mixer, power cord, speaker cable, Owner’s Manual (this booklet)

NOTE:   The mixer is installed in the speaker when the STAGEPAS 250M leaves the factory.

OPEN

LOCK

OPEN

LOCK

OPEN

LOCK

OPEN

LOCK

LOCK

OPEN

1.  IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!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.

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.

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 
devices. 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/s. 

 

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 co-axial 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 Corporation of America, Electronic Service 
Division, 6600 Orangethorpe Ave, Buena Park, CA90620

 

The above statements apply ONLY to those products distributed by Yamaha 
Corporation of America or its subsidiaries.

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.

(class B)

Yamaha Pro Audio global web site:  http://www.yamahaproaudio.com/
Yamaha Manual Library: 

http://www.yamaha.co.jp/manual/

RISK OF ELECTRIC SHOCK

DO NOT OPEN

The above warning is located on the bottom 
of the mixer and the rear of the speaker.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user 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 the user to the presence of important 
operating and maintenance (servicing) instructions in the literature accompanying the product.

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 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.

11  Only use attachments/accessories specified by the manufacturer.

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.

* Please keep this manual in a safe place for future reference.

•  Do not expose the device to rain, use it near water or in damp or wet 

conditions, or place containers on it containing liquids which might spill 
into any openings. If any liquid such as water seeps into the device, turn 
off the power immediately and unplug the power cord from the AC outlet. 
Then have the device inspected by qualified Yamaha service personnel.

•  Never insert or remove an electric plug with wet hands.

•  If the power cord or plug becomes frayed or damaged, or if there is a 

sudden loss of sound during use of the device, or if any unusual smells 
or smoke should appear to be caused by it, immediately turn off the 
power switch, disconnect the electric plug from the outlet, and have the 
device inspected by qualified Yamaha service personnel.

•  If this device should be dropped or damaged, immediately turn off the 

power switch, disconnect the electric plug from the outlet, and have the 
device inspected by qualified Yamaha service personnel.

•  Remove the electric plug from the outlet when the device is not to be used 

for extended periods of time, or during electrical storms.

•  When removing the electric plug from the device or an outlet, always hold 

the plug itself and not the cord. Pulling by the cord can damage it.

•  Before moving the device, remove all connected cables.

•  When setting up the device, make sure that the AC outlet you are using is 

easily accessible. If some trouble or malfunction occurs, immediately turn 
off the power switch and disconnect the plug from the outlet. Even when 
the power switch is turned off, electricity is still flowing to the product at 
the minimum level. When you are not using the product for a long time, 
make sure to unplug the power cord from the wall AC outlet.

•  Do not use the device in a confined, poorly-ventilated location. Make sure 

that there is adequate space between the mixer and surrounding walls or 
other devices: at least 30 cm at the sides, 30 cm behind and 30 cm 
above. If the mixer is to be used installed into the speaker cabinet, make 
sure to allow adequate space between the speaker and the surrounding 
walls or other devices: at least 30 cm at the sides, 30 cm behind and 30 
cm above. Inadequate ventilation can result in overheating, possibly 
causing damage to the device(s), or even fire.

•  Do not use the speaker's handles for suspended installation. Doing so 

can result in damage or injury.

•  Avoid setting all equalizer controls and faders to their maximum. 

Depending on the condition of the connected devices, doing so may 
cause feedback and may damage the speakers.

•  Do not expose the device to excessive dust or vibrations, or extreme cold 

or heat (such as in direct sunlight, near a heater, or in a car during the 
day) to prevent the possibility of panel disfiguration or damage to the 
internal components.

•  Do not place the device in an unstable position where it might 

accidentally fall over.

•  Do not block the vents. This mixer has ventilation holes at the top to 

prevent the internal temperature from becoming too high. In particular, do 
not place the device on its side or upside down. Inadequate ventilation 
can result in overheating, possibly causing damage to the device(s), or 
even fire.

•  Do not use the device in the vicinity of a TV, radio, stereo equipment, 

mobile phone, or other electric devices. Doing so may result in noise, 
both in the device itself and in the TV or radio next to it.

•  Before connecting the device to other devices, turn off the power for all 

devices. Before turning the power on or off for all devices, set all volume 
levels to minimum.

•  For the SPEAKER jack, use only the included speaker (500S) and speaker 

cable. Use of other types of speakers and cables may result in damage to 
the device(s), or even fire.

•  When turning on the AC power in your audio system, always turn on the 

device LAST, to avoid speaker damage. When turning the power off, the 
device should be turned off FIRST for the same reason.

•  Do not insert your fingers or hands in any gaps or openings on the device 

(vents,, ports, etc.).

•  Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) 

into any gaps or openings on the device (vents, ports, etc.) If this 
happens, turn off the power immediately and unplug the power cord from 
the AC outlet. Then have the device inspected by qualified Yamaha 
service personnel.

•  Do not use the device or headphones for a long period of time at a high 

or uncomfortable volume level, since this can cause permanent hearing 
loss. If you experience any hearing loss or ringing in the ears, consult a 
physician.

•  Do not operate the device if the sound is distorting. Prolonged use in this 

condition could cause overheating and result in fire.

•  Do not rest your weight on the device or place heavy objects on it, and 

avoid use excessive force on the buttons, switches or connectors.

All full-range loudspeakers are fitted with a self-resetting poly switch that 
protects the high-frequency driver from damage caused by excessive 
power. If a loudspeaker cabinet loses high-frequency output, immediately 
remove power from the unit and wait for two to three minutes. This should 
be long enough to allow the poly switch to reset. Reapply power and check 
the performance of the high frequency driver before continuing, with the 
power reduced to a level that does not cause the poly switch to interrupt 
the signal. 

Using a cell phone near the speaker system can induce noise. If this occurs, 
move the cell phone further away from the speaker system.

Air blowing out of the bass reflex ports is normal, and often occurs when the 
speaker is handling program material with heavy bass content.

Yamaha cannot be held responsible for damage caused by improper use 
or modifications to the device.

Always turn the power off when the device is not in use. 

The performance of components with moving contacts, such as switches, 
volume controls, and connectors, deteriorates over time. Consult qualified 
Yamaha service personnel about replacing defective components.

•  The illustrations as shown in this manual are for instructional purposes 

only, and may be different from the ones on your equipment.

•  The company names and product names in this manual are the 

trademarks or registered trademarks of their respective companies.

IMPORTANT
Please record the serial number of this unit in the space below.
Model:
Serial No.:
The serial number is located on the bottom or rear of the unit.
Retain this Owner's Manual in a safe place for future reference.

• This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd.

(3 wires)

WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT.  The wires in this mains lead are coloured in accordance with the following 
code:

GREEN-AND-YELLOW  : EARTH
BLUE  

: NEUTRAL

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 GREEN-and-YELLOW must be connected to the terminal in the plug 
which is marked by the letter E or by the safety earth symbol      or colored GREEN or GREEN-
and-YELLOW.
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.

• This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.

(Ser.No)

For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below.

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

(UL60065_03)

•  Only use the voltage specified as correct for the device. The required 

voltage is printed on the name plate of the device.

•  Use only the included power cord.

•  Do not place the power cord near heat sources such as heaters or 

radiators, and do not excessively bend or otherwise damage the cord, 
place heavy objects on it, or place it in a position where anyone could 
walk on, trip over, or roll anything over it.

•  Be sure to connect to an appropriate outlet with a protective grounding 

connection. Improper grounding can result in electrical shock.

•  Do not open the device or attempt to disassemble the internal parts or 

modify them in any way. The device contains no user-serviceable parts.  
If it should appear to be malfunctioning, discontinue use immediately and 
have it inspected by qualified Yamaha service personnel.

■

Unit: mm

■

342

175

544.5

330.0

120

152

2-M8 x 25

298

HIGH

–15

+

15

LOW

–15

+

15

LEVEL

01

0

HIGH

–15

+

15

LOW

–15

+

15

LEVEL

01

0

HIGH

–15

+

15

LOW

–15

+

15

LEVEL

01

0

HIGH

–15

+

15

LOW

–15

+

15

LEVEL

01

0

HIGH

–15

+

15

LOW

–15

+

15

LEVEL

01

0

HIGH

–15

+

15

LOW

–15

+

15

LEVEL

01

0

HIGH

REVERB

REVERB

REVERB

REVERB

–15

+

15

LOW

–15

+

15

LEVEL

01

0

MONIT

OR

OUT

01

0

REVERB

01

0

LEVEL

01

0

(MONO)

L

R

L

R

RR

LL

MIC LINE

MIC LINE

MIC LINE

MIC LINE

PHANT

O

M

CH1-4

LIMIT COMP

LIMIT COMP

R

R

L

(MONO)

L

L

R

OPEN

LOCK

OPEN

LOCK

SPEECH

POWER

MUSIC

-

20

-

6

0

+3

+6

LIMITER

SPEAKERS

OFF

O

N

MONIT

O

R

OUT

POWER

AC IN

ON

OFF

111.5

■

250 W (±10 %)/4Ω @ 10 % THD at 1 kHz (SPEAKER)
    200 W/4Ω @ 1 % THD at 1 kHz (SPEAKER)

116 dB (1 m)

-3 dB, 0 dB, +1 dB @ 20 Hz-20 kHz (MUSIC/SPEECH=MUSIC) (ST SUB OUT)
-3 dB, 0 dB, +1 dB @ 80 Hz-20 kHz (MUSIC/SPEECH = SPEECH) (ST LINK OUT)
-3dB, 0dB, +1 dB @ 20 Hz-20 kHz, 1 W Output (MUSIC/SPEECH=MUSIC, without Speaker 
EQ) (SPEAKER)

    0.5 % @ 20 Hz, 1 kHz, 20 kHz +14 dBu GAIN= nominal (ST SUB OUT, ST LINK OUT)

    -106 dBu (CH1/2)
    -65 dBu Residual output noise (SPEAKER)

    -70 dB between input channels

+15 V (CH1-2)

ON = Comp, OFF = Limit (CH1/2)

35 W

13 kg (Speaker + Powered Mixer)

±15 dB
HIGH 10 kHz shelving
LOW 100 Hz shelving

■

2 way bass-reflex type, Polypropylene, Black

4.0 kHz (LF: 12 dB/oct, HF: 12 dB/oct)

55 Hz-20 kHz (-10 dB)

LF: 10" (25 cm) Cone
HF: 1" (2.54cm) Compression Driver

Specifications and descriptions in this owner's manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specifications at 
any time without prior notice. Since specifications, equipment or options may not be the same in every locale, please check with your Yamaha dealer.

Tripod pole diameter 35-36

* Use of the stand should refer to stand manufacturer's instructions.

PA19

Yamaha Canada Music Ltd.
135 Milner Avenue, Scarborough, Ontario, M1S 3R1, Canada
Tel: 416-298-1311

Yamaha Corporation of America
6600 Orangethorpe Ave., Buena Park, Calif. 90620, U.S.A.
Tel: 714-522-9011

Yamaha de México S.A. de C.V.
Calz. Javier Rojo Gómez #1149, Col. Guadalupe del Moral
C.P. 09300, México, D.F., México
Tel: 55-5804-0600 

Yamaha Musical do Brasil Ltda.
Rua Joaquim Floriano, 913 - 4' andar, Itaim Bibi, CEP 04534-
013 Sao Paulo, SP. BRAZIL
Tel: 011-3704-1377

Yamaha Music Latin America, S.A. 
Sucursal de Argentina
Viamonte 1145 Piso2-B 1053, Buenos Aires, Argentina
Tel: 1-4371-7021

Yamaha Music Latin America, S.A.
Torre Banco General, Piso 7, Urbanización Marbella, 
Calle 47 y Aquilino de la Guardia, 
Ciudad de Panamá, Panamá 
Tel: +507-269-5311

Yamaha Music U.K. Ltd.
Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8BL, England
Tel: 01908-366700

Yamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen,Germany
Tel: 04101-3030

Yamaha Music Central Europe GmbH, Branch Switzerland
Seefeldstrasse 94, 8008 Zürich, Switzerland
Tel: 01-383 3990

Yamaha Music Central Europe GmbH, Branch Austria
Schleiergasse 20, A-1100 Wien, Austria
Tel: 01-60203900

Yamaha Music Central Europe GmbH, 
Branch Austria, CEE Department
Schleiergasse 20, A-1100 Wien, Austria 
Tel: 01-602039025

Yamaha Music Central Europe GmbH
Sp.z. o.o. Oddzial w Polsce
ul. 17 Stycznia 56, PL-02-146 Warszawa, Poland
Tel: 022-868-07-57

Yamaha Music Central Europe GmbH, Branch Benelux
Clarissenhof 5-b, 4133 AB Vianen, The Netherlands
Tel: 0347-358 040 

Yamaha Musique France
BP 70-77312 Marne-la-Vallée Cedex 2, France
Tel: 01-64-61-4000

Yamaha Musica Italia S.P.A. Combo Division
Viale Italia 88, 20020 Lainate (Milano), Italy 
Tel: 02-935-771

Yamaha Música Ibérica, S.A.
Ctra. de la Coruna km. 17, 200, 28230 
Las Rozas (Madrid), Spain
Tel: 91-639-8888

Yamaha Scandinavia AB
J. A. Wettergrens Gata 1, Box 30053
S-400 43 Göteborg, Sweden
Tel: 031 89 34 00

YS Copenhagen Liaison Office
Generatorvej 6A . DK-2730 Herlev, Denmark
Tel: 44 92 49 00

Norsk filial av Yamaha Scandinavia AB  
Grini Næringspark 1
N-1345 Østerås, Norway
Tel: 67 16 77 70

Yamaha Music (Russia)
Office 4015, entrance 2, 21/5 Kuznetskii
Most street, Moscow, 107996, Russia
Tel: 495 626 0660

Yamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
Tel: +49-4101-3030

Yamaha Corporation, Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Naka-ku, Hamamatsu, 
Japan 430-8650
Tel: +81-53-460-2313

Yamaha Music Central Europe GmbH
Siemensstraße 22-34, 25462 Rellingen, Germany
Tel: 04101-3030

Yamaha Music Gulf FZE
LOB 16-513, P.O.Box 17328, Jubel Ali, Dubai, United Arab 
Emirates
Tel: +971-4-881-5868

Yamaha Music & Electronics (China) Co.,Ltd.
25/F., United Plaza, 1468 Nanjing Road (West),
Jingan, Shanghai, China
Tel: 021-6247-2211

PT. Yamaha Music Indonesia (Distributor) PT. Nusantik
Gedung Yamaha Music Center, Jalan Jend. Gatot Subroto 
Kav. 4, Jakarta 12930, Indonesia
Tel: 21-520-2577

Yamaha Music Korea Ltd.
8F, 9F, Dongsung Bldg. 158-9 Samsung-Dong, Kangnam-Gu, 
Seoul, Korea
Tel: 080-004-0022

Yamaha Music Malaysia, Sdn., Bhd.
Lot 8, Jalan Perbandaran, 47301 Kelana Jaya, 
Petaling Jaya, Selangor, Malaysia
Tel: 3-78030900

Yamaha Music Asia Pte., Ltd.
#03-11 A-Z Building 140 Paya Lebor Road, Singapore 409015
Tel: 747-4374

Yamaha KHS Music Co., Ltd. 
3F, #6, Sec.2, Nan Jing E. Rd. Taipei. Taiwan 104, R.O.C.
Tel: 02-2511-8688

Siam Music Yamaha Co., Ltd.
891/1 Siam Motors Building, 15-16 floor Rama 1 road, 
Wangmai, Pathumwan Bangkok 10330, Thailand
Tel: 02-215-2626

Yamaha Corporation, Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650
Tel: +81-53-460-2317

Yamaha Music Australia Pty. Ltd.
Level 1, 99 Queensbridge Street, Southbank, 
Victoria 3006, Australia
Tel: 3-9693-5111

Yamaha Corporation, Asia-Pacific Music Marketing Group
Nakazawa-cho 10-1, Naka-ku, Hamamatsu,  
Japan 430-8650
Tel: +81-53-460-2313

Yamaha Corporation, Pro Audio & Digital Musical 
Instrument Division
Nakazawa-cho 10-1, Naka-ku, Hamamatsu,  
Japan 430-8650
Tel: +81-53-460-2441

(5)-5