Yamaha CBR12 - Manual

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In order to take full advantage of the CBR series’ (referred to in this manual as CBR) superior functionality
and enjoy years of trouble-free use, please read this manual before you begin using the product.
After you have read the manual, keep it in a safe place for reference when needed.

• This manual uses example illustrations taken from the CBR12 if not otherwise specified.
• The illustrations as shown in this manual are for instructional purposes only.
• The company names and product names used in this manual are the trademarks or registered

trademarks of their respective companies.

Features

• High-quality speaker unit, with smooth directional characteristics, and ports reducing wind roar in order

to achieve High-resolution sound quality

• High sound pressure thanks to the unit’s high-input tolerance and exceptional reliability from protection

circuitry

• Highly portable light and compact cabinet
• Input connectors supporting both speakON and phone plugs
• Installable with eye bolt rigging and brackets

Included Accessories

• Technical Specifications (English only): includes specifications, block diagram, and dimensions.
• Owner’s Manual (this leaflet)

Controls and Connectors

Rear

Pullback point (M8 screw hole)
(only for CBR15 and CBR12)

Phone jack

speakON connector (compatible with
Neutrik NL4)

The phone jacks and the speakON connectors
are provided for connection to power amplifiers
or powered mixers, etc. with speaker cables.

Note

U s e c a b l e s s p e c i a l l y d e s i g n e d f o r s p e a k e r s .

Using cables for musical instruments could cause

overheating and result in fire.

Turn to lock

Phone plug

speakON plug

Bottom

Screw holes (M8)

Use these M8 size screw holes for installing
separately sold brackets or commercially
available eye bolts.

Pole socket

This socket adapts to commercially
available speaker stands and speaker
poles of 35 mm diameter.

Connection

Wiring

Make sure to wire the plugs as shown below.

❚

❚

Phone plug

❚

❚

Neutrik speakON plug (NL4)

1+ :

1– :

2– (unconnected)

2+ (unconnected)

Parallel connection of speakers

The signals of the phone jack and speakON connector are connected in parallel. The first CBR receives
the signal from an amplifier (such as a power amplifier, a powered mixer, etc.) with the phone jack or the
speakON connector, and routes the signal to the second CBR. When connecting CBRs in parallel, be sure to
check the load impedance the amplifier can drive. The nominal impedance of one CBR is eight ohms and the
total impedance of two parallel connected CBRs is four ohms. In this case, the amplifier must be able to drive
less than four ohm load impedance.

Amplifier

The first CBR

(Impedance: 8Ω)

The second CBR

(Impedance: 8Ω)

Parallel connection (total impedance: 4Ω)

or

From

amplifier

To next CBR

Invalid connection

Do not connect the input from
the amplifier to both the phone
jack and the speakON connector
simultaneously. This creates a
dangerous short circuit.

L channel

Amplifier

CBR

R channel

and

DE

SPEAKER SYSTEM

CBR series

Owner’s Manual

English

ZJ41650

EN

PRECAUTIONS

PLEASE READ CAREFULLY BEFORE

PROCEEDING

Please keep this manual in a safe place for future

reference.

WARNING

Always follow the basic precautions listed below to

avoid the possibility of serious injury or even death

from electrical shock, short-circuiting, damages, fire or

other hazards. These precautions include, but are not

limited to, the following:
Do not open

• This device contains no user-serviceable parts. Do not

open the device or attempt to disassemble the internal

parts or modify them in any way. If it should appear

to be malfunctioning, discontinue use immediately

and have it inspected by qualified Yamaha service

personnel.

Fire warning

• Do not put burning items, such as candles, on the unit.

A burning item may fall over and cause a fire.

CAUTION

Always follow the basic precautions listed below

to avoid the possibility of physical injury to you or

others, or damage to the device or other property.

These precautions include, but are not limited to, the

following:
Location

• Do not place the device in an unstable position or fail

to secure it properly in a potentially dangerous position

where it may fall even if the position is horizontal. The

device may accidentally fall over, resulting in damage

and/or injury.

• Do not use the speaker’s handles for suspended

installation. Doing so can result in damage or injury.

• Do not hold the bottom of the device when transporting

or moving it. In doing so, you may pinch your hands

under the device, and result in injury.

• Do not place the device in a location where it may come

into contact with corrosive gases or salt air. Doing so

may result in malfunction.

• Before moving the device, remove all connected cables.

• Always consult qualified Yamaha service personnel if

the device installation requires construction work, and

make sure to observe the following precautions.

– Choose mounting hardware and an installation

location that can support the weight of the device.

– Avoid locations that are exposed to constant vibration.

– Use the required tools to install the device.

– Inspect the device periodically.

Connections

• 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.

• Use only speaker cables. Use of other types of cables

may result in fire.

Handling caution

• Do not insert your fingers or hands in any gaps or

openings on the device.

• 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.

• Do not use the speakers 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.

• When choosing a power amplifier for use with this

device, make sure that the output power of the amplifier

is lower than the power capacity of this device. If

the output power is higher than the power capacity,

malfunction or fire may occur.

• Do not input excessively loud signals that may result in

clipping in the amplifier or cause the following:

– Feedback, when using a microphone

– Continuous and extremely loud sound from a musical

instrument, etc.

– Continuous and extremely loud distorted sound

– Noise caused by plugging/unplugging the cable while

the amplifier is turned on

Even if the output power of the amplifier is lower than

the power capacity of this device (program), damage to

the device, malfunction or fire may occur.

Yamaha cannot be held responsible for damage caused

by improper use or modifications to the device, or data

that is lost or destroyed.

(PA-4)

NOTICE

To avoid the possibility of malfunction/damage to the

product, damage to data, or damage to other property,

follow the notices below.

Handling and Maintenance

• Do not expose the device to excessive dust or vibration,

or extreme cold or heat (such as in direct sunlight, near

a heater, or in a car during the day), in order to prevent

the possibility of panel disfiguration, unstable operation,

or damage to the internal components.

• Do not place vinyl, plastic or rubber objects on the

device, since this might discolor the panel.

• When cleaning the device, use a dry and soft cloth.

Do not use paint thinners, solvents, cleaning fluids, or

chemical-impregnated wiping cloths.

• Condensation can occur in the device due to rapid,

drastic changes in ambient temperature—when the

device is moved from one location to another, or air

conditioning is turned on or off, for example. Using

the device while condensation is present can cause

damage. If there is reason to believe that condensation

might have occurred, leave the device for several hours

until the condensation has completely dried out.

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

always turn on the power amplifier LAST, to avoid

speaker damage. When turning the power off, the

power amplifier should be turned off FIRST for the same

reason.

• Be sure to observe the power amplifier’s rated load

impedance, particularly when connecting speakers in

parallel. Connecting an impedance load outside the

amplifier’s rated range can damage the power amplifier.

• Protective Circuit

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 power amplifier 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.

• Air blowing out of the bass reflex ports is normal, and

often occurs when the speaker is handling program

material with heavy bass content.

Connectors

• Use only Neutrik speakON plugs (NL4) for connecting

speakON connectors.

Installation Examples

Installation using separately sold Yamaha speaker

brackets

Attach the bracket to two screw holes at the bottom of the unit using commercially available screws
(M8 x 16 mm) or eye bolts (M8 x 15 mm). For details on installing the bracket, refer to the corresponding
manual.

❚

❚

Using the BWS251-300 or BWS251-400 wall mounting bracket

Maximum tilt

angle

The tilt angle depends on the position relation between the speaker
and the wall. The maximum downward tilt angle is shown in the
following chart.

Maximum tilt angle

BWS251-300

BWS251-400

CBR15

8°

17.5°

CBR12

11°

23°

CBR10

20°

35°

❚

❚

Using the BCS251 ceiling bracket

235923

Max. 45°

(Pullback point for CBR15

and CBR12 only)

❚

❚

Using the BBS251 baton bracket

235923

Max. 45°

Baton diameter

f

34 -

f

51

CAUTION

In order to prevent the unit from falling down, attach the safety wire as shown in the

illustration.

CAUTION

• Before doing any installation or construction work, consult with your Yamaha dealer.

• For optimum safety, the installation should be checked thoroughly at regular intervals. Some fittings may deteriorate over

extended periods of time due to wear and/or corrosion.

• When choosing the installation location, suspension wire and mounting hardware, make sure all are strong enough to

support the weight of the speaker.

• Make sure to take measures to prevent the speaker from falling down in the event of a installation failure.

• When installing the safety wire to the wall, install it higher than the wire’s attachment point on the speaker, with as little

slack as possible. If the wire is too long, and the speaker happens to fall, the wire may snap as a result of too much strain.

Yamaha cannot be held responsible for damage or injury caused by insufficient strength of the support
structure or improper installation.

Installation using eye bolts

Attach commercially-available eye bolts (M8 x 15 mm) to the screw holes located at the bottom (two
locations) and on the upper rear (one location, only for CBR15 and CBR12). Keep in mind that you will
need two points at the bottom to suspend the unit.

CAUTION

Make sure to use eye bolts according to the standards and safety regulations in your area.

M8 eye bolt

Max. 45°

(Pullback point for

CBR15 and CBR12 only)

❚

❚

NOTICE

The strength of an eye bolt differs depending on the suspension angle. Make sure to use eye bolts within
a range of 0 to 45 degrees from a right angle (as shown).

Correct:

Within 45° from a right angle

0°

45°

Max. 45°

Incorrect:

Do not suspend the eye bolts as shown in the illustrations below.

Only one suspension point

More than 45° from a right angle

More than 45°

More than 45°

Pullback point (only for CBR15 and CBR12)

• When the unit is shipped from the factory, a seal is

stuck on the pullback point (screw hole). Make sure to
peel off the seal when using the pullback point.

• The CBR10 does not have a pullback point.

Pullback point

(M8 screw hole)

Upper rear of the unit

Securing the screws and eye

bolts

• Insert the screw or eye bolt through the

washer to attach them.

Apply thread-locking

fluid to the eye bolt

Troubleshooting

Symptom

Possible causes

Possible solution

No sound.

The cable is not connected properly. • Connect the cable all the way in so that it is firmly

in place.

• If the speakON connector is used, connect to “1+”

and “1-” and turn the plug to be locked.

Howling sound

is produced

(feedback).

A microphone is directed toward the

speaker.

Aim the speaker away from the area where the

microphone picks up sound.

The sound is amplified too much.

Lower the volume of input device and locate the

microphone more closely to the sound source.

The amplifier

shuts down.

The total impedance of the

speakers is less than the minimum

load impedance of the amplifier.

Example: More than two speakers

(eight ohms) are connected to a

power amplifier, the load impedance

of which is six ohms.

Check the minimum load impedance of the power

amplifier, and lower the number of speakers

connected in parallel not to be less than the

impedance.

High frequency

range is

attenuated.

The protection circuit is operating in

the HF unit.

Refer to “Protection circuit” in the NOTICE.

If any specific problem should persist, however, please contact your Yamaha dealer.

General Specifications

CBR15

CBR12

CBR10

System Type

2-way Speaker, Bass-reflex Type

Frequency Range (-10dB)

46 Hz–20 kHz

48 Hz–20 kHz

50 Hz–20 kHz

Coverage Angle
(Horizontal x Vertical)

H90° x V60° Constant Directivity Horn

Maximum SPL
(Calculated, 1m)

126 dB SPL

125 dB SPL

123 dB SPL

Crossover Frequency

2.0 kHz

2.1 kHz

2.8 kHz

Nominal Impedance

8Ω

8Ω

8Ω

Power Rating
(IEC noise)

NOISE

250 W

175 W

175 W

PGM

500 W

350 W

350 W

MAX

1000 W

700 W

700 W

Sensitivity (1W, 1m)

96 dB SPL

96 dB SPL

94 dB SPL

Components

LF

15" Cone, 2.5" Voice Coil 12" Cone, 2" Voice Coil

10" Cone, 2" Voice Coil

HF

1.4" Voice Coil, Compression Driver

1" Voice Coil,
Compression Driver

Dimensions (WxHxD,
Including Rubber Feet)

455 x 700 x 378 mm
(17.9" x 27.6" x 14.9")

376 x 601 x 348 mm
(14.8" x 23.7" x 13.7")

308 x 493 x 289 mm
(12.1" x 19.4" x 11.4")

Net Weight

17.7 kg (39.0 lbs)

13.9 kg (30.6 lbs)

9.4 kg (20.7 lbs)

Handles

Side x 2

Top x 1

Pole Socket

f

35 mm, Bottom x 1

Rigging Points

Bottom x 2, Rear x 1 (Fit for M8 x 15 mm)

Bottom x 2
(Fit for M8 x 15 mm)

Optional Speaker Brackets

BBS251, BCS251, BWS251-300, BWS251-400

Connectors

1/4" Phone x 1, speakON NL4MP x 1

* The contents of this manual apply to the latest specifications as of the printing date. Since Yamaha makes

continuous improvements to the product, this manual may not apply to the specifications of your particular

product. To obtain the latest manual, access the Yamaha website then download the manual file. Since

specifications, equipment or separately sold accessories may not be the same in every locale, please

check with your Yamaha dealer.