Yamaha MA2030a, PA2030a Owners Manual

2 1, 5 3 4

POWER AMPLIFIER

ZV75780

■

Low-impedance Connections (30W x 2 channels)

Step

Adjusting Volume

1 2

Option

Connecting Yamaha Digital Control Panel DCP1V4S-US/EU to MA2030a enables you to control the volume, to switch inputs, etc. remotely.

Operating with Control Panel

Owner’s Manual

First, please carefully read the “IMPORTANT SAFETY INSTRUCTIONS” in the “Technical Speciﬁcations.”

Thank you for your purchase of the Yamaha MA2030a/PA2030a power ampliﬁer. This power ampliﬁer was designed for background music and public address applications in places such as stores, commercial spaces, and so on. This manual contains installation and setting up information for installers, and operation instructions for users. Please read through this manual carefully before beginning use, so that you will be able to take full advantage of the device’s various functions. After you have read the manual, keep it in a safe place.

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

• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.

• Software may be revised and updated without prior notice.

• In this manual, the content unique to the PA2030a. Contents that are common to both have no marks.

• Ampliﬁer illustrations are mainly from the MA2030a. Where necessary, illustrations of the PA2030a are also shown.

Features

• Supports both kinds of speaker connection: high-impedance connection and low-impedance connection.

• Equipped with digital processor (Feedback Suppressor, Ducker, Leveler).

• Optional PA2030a expansion ampliﬁer enables connection of additional speakers.

Included items

• Power cord (2.0m)

• Euroblock plugs (3-pin, 3.50mm pitch) x 1 , x 2

• Technical Specifications: includes block diagram, dimensions, and input/output speciﬁcations.

• Owner’s Manual (this sheet)

Step 1

Speakers

Step 2

Portable audio player,

etc.

Step 2

CD players, tuners, etc.

Step 3

To AC outlet

Step 4

Volume adjustment

Step

Change the setting depending on the speaker connection (high- or low-impedance connection), the kind of speakers, and the installation location of the speakers. Refer to “Connecting Speaker Cables” at the right bottom on this page and the explanation of high-impedance connection, etc. at the following URL.

Yamaha Pro Audio site: “Better Sound for Commercial Installations”: http://www.yamahaproaudio.com/global/en/training_support/better_sound/

CAUTION

• Before connecting speakers, make sure that the power of the device is turned off. If the power is on, there is a risk of electrical shock.

NOTICE

• Match the impedance settings of this device and the connected speakers. Use in which the impedance does not match may cause damage to the device or speakers.

• Ensure that load is not applied to the speaker cable.

• In a high-impedance installation, make sure that the sum of the power input ratings of the speakers to be connected does not exceed 60W.

• In a low-impedance installation, make sure that the total impedance of speakers to be connected is at least 3 ohms.

• Connectable cable gauges: AWG20 (0.5mm

■

High-impedance Connections (60W x 1 channel)

Note

In high-impedance settings, the speaker output is processed through a high pass ﬁlter (80Hz, 18dB/oct.).

Set the speaker output to high-impedance by setting the [OUTPUT] switch to [100V] or [70V] corresponding to the maximum output voltage.

Use speaker cables to connect the [SPEAKERS A] terminal to the positive “+” terminals of the speakers, and the [SPEAKERS B] terminal to the negative “-” terminals.

In case of high-impedance connection, the [SPEAKERS A] and [SPEAKERS B] terminals are not used. Do not connect to the terminals.

mark indicates content that is unique to the MA2030a, and indicates

Setup

Option 1

Microphones

Front panel

Option 2

Speaker expansion

Option 3

Control Panel

(DCP1V4S-US/EU)

Maximum output

voltage: 70V

Connecting Speakers

) to AWG16 (1.3mm2)

Maximum output

voltage: 100V

Rear panel

Set the speaker output to low-impedance connection by setting the [OUTPUT] switch

to [8Ω/4Ω/3Ω].

Set the [SETUP] DIP switch 1/2 corresponding to the specications of the speakers to

be connected.

Connect the [SPEAKERS A] / terminals to the “+”/“-” terminals of the rst

speaker, and the [SPEAKERS B] speaker.

■

Configuration of Speaker Output Signal

Connecting Yamaha Speakers [SETUP] DIP switch 5/6

Setting the [SETUP] DIP switches optimizes the output signal to match Yamaha VXS/VXC speakers designed for commercial installations.

[SETUP] DIP switch 5 6

Yamaha VXS series (surface mount-type)

Yamaha VXC series (ceiling-type)

High-pass ﬁlter (150Hz)

Off

For information on the speaker output settings of the PA2030a, refer to “Controls and functions.”

Step

mini-stereo

type

MA2030a front panel

Connect a BGM (background music) tuner, a CD player, a portable audio player, etc. to the stereo input jacks of this device.

Refer to “Attaching Euroblock Plugs” for Euroblock plug installation.

Note

Make sure that this device and all devices to be connected are turned off.

Connect this device and any external devices with appropriate cables.

Leveler (suppressing wide playback volume variations) [SETUP] DIP switch 7

The Leveler function automatically suppresses and corrects for large changes in the playback volume from external devices for a more consistent sound, such as when reproducing BGM (background music).

Step

2 3 4 5

Note • Before turning on the power, please check that there are no problems with the cabling, connections, and so on.

MA2030a front panel MA2030a rear panel

Make sure power switches of this device and devices connected to this device are turned off (in position).

Turn the [VOLUME] knob all the way to the left.

Connect the supplied power cord to the AC IN connector.

Insert the power cord plug into an appropriate outlet.

After turning on the connected devices (portable audio players, CD players, etc.), turn on this device.

• When turning the system off, turn off this device, and then connected devices.

Connecting External Devices

RCA type RCA type Euroblock

MA2030a rear panel PA2030a rear panel

Connecting Power Cord and Turning On

/ terminals to the “+”/“-” terminals of the second

Setting mono/stereo output [SETUP] DIP switch 8

In a low-impedance installation, if speakers are placed in a stereo arrangement, set to stereo output.

High-impedance connections

Low-impedance connections

—: Setting is not required. (Either up or down can be used.)

*1: When stereo audio is output, the left channel signal

AC IN connector

[SETUP] DIP switch 1 2

8Ω or more

Speaker impedance

[SETUP] DIP switch 8

is output from the [SPEAKERS A] terminals and the right channel signal is output from the [SPEAKERS B] terminals.

4Ω to less than 8Ω

3Ω to less than 4Ω

— Mono output

Mono output

Stereo output (*1)

[SETUP] DIP switch 7

Leveler disabled

Leveler enabled

Power cord

To AC outlet

MA2030a front panel PA2030a front panel

Select a stereo input by rotating the [ST SOURCE] knob.

The [ST SOURCE] indicator corresponding to the selected input signal lights.

Input audio signal from the external device, and rotate the [VOLUME] knob.

Make sure that the [VOLUME SIGNAL] indicator lights according to the sound input and that sound comes from the speakers.

Matching the volume levels of external devices (including microphones)

When connecting two or more external devices, you can lower the volume of the louder devices (or microphones) to match the level of the faintest device. If you are using microphones, follow the instructions in “Option 1 Using Microphones” to adjust the volume level of microphones before executing the operation below.

Select the stereo input with the loudest sound by rotating the [ST SOURCE] knob.

Press and hold the [ST SOURCE] knob until the [ST SOURCE] indicator ashes.

Rotate the [ST SOURCE] knob to the left until the volume decreases to the point that

lowers as loud as that of the faintest sounding stereo input (or microphones).

As the volume becomes fainter, the ﬂashing rate of the [ST SOURCE] indicator becomes slower.

Push the [ST SOURCE] knob to complete the adjustment.

The [ST SOURCE] indicator lights.

Adjustable range: -18dB – 0dB, -9dB as the default setting

Note

Option

1 1

Using Microphones

Phone

XLR

Euroblock

3, 4 3, 42

MA2030a front panel

Turn the [MIC IN 1] knob or the [MIC IN 2 GAIN] trimmer all the way to the left, and

connect a microphone to the [MIC IN 1] jack or the [MIC IN 2] connector.

Set the [VOLUME] knob to roughly a 2:00 position.

Loudly speak into the microphone, and turn the [MIC IN 1] knob or the [MIC IN 2 GAIN]

trimmer to the right until the output signal is not distorted.

If you input a loud voice but the output is small, raise the volume with the [VOLUME] knob. If the sound out of the speakers is too loud, lower the volume with the [MIC IN 1] knob or the [MIC IN 2 GAIN] trimmer.

Make sure the input from external devices matches the volume levels of the

microphones and the external devices.

Refer to “Matching the volume levels of external devices (including microphones)” in “Step 4 Adjusting Volume” for instructions.

Note

• To adjust the [MIC IN 2 GAIN] trimmer, use a slotted screw driver.

• Refer to “Attaching Euroblock Plugs” for installation of Euroblock plugs.

• The input signal is always processed through a high pass filter (120Hz, 12dB/oct.) to cut off low frequency signals as well as a Feedback Suppressor to suppress howling.

Ducker (lowering the volume of the other channels automatically when a microphone signal is input) [SETUP] DIP switch 3/4

Jack/connector [MIC IN 1] [MIC IN 2]

[SETUP] DIP switch 3 4

Ducker disabled

Ducker enabled

Option

Connecting the MA2030a and PA2030a lets you increase the number of driven speakers. Connect the [LINE OUT] jacks of MA2030a and the [LINE IN] jacks of PA2030a.

MA2030a rear panel

Expanding Speakers

RCA RCA

MA2030a rear panel

Note • If both Duckers of the [MIC IN 1] jack and the [MIC

IN 2] jack are enabled, the Ducker for the [MIC IN 1] takes priority.

• Activating the Ducker lowers the output volume of the stereo inputs by 24dB and mutes that of the other microphone input.

PA2030a rear panel

RJ-45

MA2030a rear panel

The functions of the knob and the switches of DCP1V4S-US/EU can be conﬁgured with DIP switches at the back of DCP1V4S-US/EU.

Panel

Note Refer to “DCP1V4S-US/DCP1V4S-EU Owner’s Manual” for DCP1V4S-US/EU installation.

DIP switch

1 2 3 4

Ethernet CAT5e or more Straight cable (800m or less (24AWG))

Knob Switch 1 Switch 2 Switch 3 Switch 4

— — — —

Stereo 1 Stereo 2 Stereo 3 Mic. 1/2

Mic. 1 Mic. 2

Volume

Mic. 1 Mic. 2

Mic. 1

Mic. 2

Mic. 1 Mic. 2 — —

— Mic. 1 —

— Mic. 2 —

Yamaha Digital Control Panel DCP1V4S-US/EU (maximum: one unit)

Rear panel

1ON2 3 4

Sets the panel ID

Mic. 1 Mic. 2

When connecting to MA2030a, set the DIP switch 4 to ON (termination setting).

Volume: Adjusts the volume output to the [SPEAKERS] terminals and the [LINE OUT] jacks.

Stereo 1/2/3: Switches to stereo input 1/2/3.

Mic. 1/2: Turns on/off microphone input 1/2. When a microphone is on, the switch indicator of the control panel lights and the stereo input is muted.

• If the panel ID is set to 3, the stereo input is not muted even though the microphone is on.

• If the panel ID is set to 7, the microphone stays on while holding the switch.

: A chime sounds when the

microphone is turned on/off —: Does not work. (No function is

assigned.)

Connecting Speaker Cables

The [SPEAKERS] output connectors on the rear panel are barrier strip type connectors. The connections are described below for two methods: using a spade lug and using a bare conductor.

NOTICE

Ensure that load is not applied to the speaker cable.

Note Connect the cables so that the ampliﬁer’s “+” and “-” symbols match those of the speaker. If they are reversed,

the phase will be reversed and the sound will not be output correctly.

When using a spade lug

Loosen the screw, insert the spade lug all the way from below, and tighten the screw.

≤5.8mm (≤0.23")

≥3.2mm (≥ 0.13")

When using a bare conductor

Loosen the screw, wrap the conductor wire around the barrier strip terminal, and tighten the screw. Be sure that the bare wire does not touch the chassis.

Wire should not touch the chassis.

15mm

(0.6")

* Actual size

Speaker cable

Attaching Euroblock Plugs

1 2 3 4

Terminal screw

Euroblock plug

Note • You must use the supplied Euroblock plugs. If the plugs have been lost, please contact your Yamaha dealer.

1 2 3 4

Loosen

Slotted screwdriver

• Recommended cable gauges for the Euroblock plug: AWG26 (0.13mm

• To prepare the cable for attachment to a Euroblock connector, strip the wire as shown in the illustration using stranded wire to make connections. With a Euroblock connection, stranded wires may be prone to breakage because of metal fatigue due to the weight of the cable or due to vibration. When rack mounting your device, use a lacing bar when possible to bundle and fasten the cables.

• Do not tin (solder) the exposed end.

Loosen terminal screws.

Insert cables.

Securely tighten terminal screws.

Insert the Euroblock plug into the [MIC IN 2] terminal of MA2030a or the [LINE IN] terminal of PA2030a.

Approx. 5 mm

(approx. 0.2")

Tighten

) to AWG16 (1.3mm2)

Switching the panel lock on/off

Changes by several knobs can be locked, so that the settings of the device are not affected by accidental touch or unauthorized operation. The [ST SOURCE], [SOURCE EQ BASS] and [SOURCE EQ TREBLE] knobs can be locked.

Adjust the [ST SOURCE], [SOURCE EQ BASS] and [SOURCE EQ TREBLE] knobs

to the desired fixed settings.

Press the [ST SOURCE] knob three times within a second.

To set the panel lock off, press the [ST SOURCE] knob three times within a second

again.

Controls and Connectors

Troubleshooting

Specifications (MA2030a/PA2030a)

Front panel

MA2030a (PA2030a has only 4 and 6)

1 2 3 4 5 6

[MIC IN 1] jack

Combo input jack that accepts both phone-type and XLR-type. Connect dynamic microphones mainly. Input signal is always processed through high pass ﬁlter (120Hz, 12dB/oct.) to cut off low frequency signal and Feedback Suppressor to suppress howling.

[MIC IN 1 SIGNAL] indicator

Lights when signal is input to the [MIC IN 1] jack.

[MIC IN 1] knob

Adjusts the volume of the microphone connected to the [MIC IN 1] jack. Turning to the right increases the volume.

[ST IN 1] jack

Input jack of mini-stereo type (unbalanced input). Connect a stereo audio source such as portable audio players.

[ST SOURCE] indicator 1/2/3

Selecting input signal from the [ST IN 1] jack lights indicator 1, the [ST IN 2] jacks lights indicator 2, and the [ST IN 3] jacks lights indicator 3.

[ST SOURCE] knob

Rotating this switches among the stereo input signals. Pressing and holding this lets you adjust the volume balance of stereo inputs. Refer to “Matching the volume levels of external devices (including microphones)” in “Step 4 Adjusting Volume” for instructions.

[VOLUME SIGNAL] indicator

Lights when signal output to speakers exceeds a certain level.

[VOLUME LIMIT] indicator

Lights if signal output to the speakers exceeds the limit value, causing the limiter to activate, or if the internal temperature of the device increases abnormally. If the limiter activates, turn the

Setting

Low-impedance connections

High-impedance connections

Signal level for which each indicator turns on

[VOLUME SIGNAL]

[3Ω] -18.2 dBu or more

[4Ω] -17.0 dBu or more

[8Ω] -14.0 dBu or more

[70V] -0.8 dBu or more

[100V] 2.2 dBu or more

[VOLUME] knob to the left so the indicator light goes out. If the device internal temperature increases, leave the device without turning on the power until the internal temperature goes down.

[VOLUME] knob

Adjusts the volume output to the speakers. Turning to the right increases the volume. Turning all the way to the left mutes the sound.

[SOURCE EQ BASS] knob

Adjust the volume of the low frequency (around 125Hz) stereo signal from -10dB to +10dB. At the center position, the sound is ﬂat; turning to the left lowers the low frequency signal and turning to the right increases the low frequency signal. Turning to the right 90 degrees or more from the center activates the Enhancer to further emphasize the low frequency signal.

[SOURCE EQ TREBLE] knob

Adjust the volume of the high frequency (6 kHz or more) stereo signal from -10dB to +10dB. At the center position, the sound is ﬂat; turning to the left lowers the high frequency signal and turning to the right increases the high frequency signal. Turning to the right 90 degrees or more from the center activates the Enhancer to further emphasize the high frequency signal.

Note If the sound distorts when using EQ, turn the knob to the left until the sound is not distorted or lower the volume of the

stereo source.

Power indicator

Turns on when the power is on. If ﬂashing continues for 10 seconds or more, the internal temperature of the device is extremely high. Turn off the power once, and turn on again several minutes later.

Power switch

Turn on/off the power.

WARNING

• To ensure that high-volume noise is not output from the speakers, power on the connected device first and then turn on this device. When turning the system off, turn off this device, and then the connected devices.

• After turning the power switch off, wait for about five seconds before turning it on again. Rapidly turning the power switch on and off in succession can cause the unit to malfunction.

CAUTION

• Even when the switch is in the off position, a small amount of electricity is still flowing to the unit. If it will not be used for an extended period of time, therefore, be sure to unplug the power cord from the wall AC outlet.

Note Do not turn off the power switch three seconds or less after executing an operation. If you do, some setting information may

not be saved.

Symptom Cause Solution

The power does not turn on.

No sound is heard. The sound is lowered too much with the

The sound distorts. The input level from microphones or external

The setting does not change even when turning a knob.

The sound is weak. The device is set to low-impedance connection;

The sound drops out and the power indicator ﬂashes three times.

The power indicator continues ﬂashing. The sound goes off.

The power cord is disconnected. Connect the power cord. The protection function of the device has been

activated.

[VOLUME] knob. No audio signal is being input. Make sure that this device is properly connected to

The input is not selected. Turn the [ST SOURCE] to select input jacks connected

The connected microphone is a condenser type. Use a dynamic type microphone or supply phantom

devices is too high.

The EQ level is too high. Turn the [SOURCE EQ BASS]/[SOURCE EQ TREBLE]

The panel is locked. When the panel is locked, even when turning the [ST SOURCE] knob, [SOURCE EQ BASS] knob or [SOURCE EQ TREBLE] knob, the setting of the device does not change.

however, speakers with high-impedance input have been connected.

The device is set to high-impedance connection; however, speakers with low-impedance input have been connected or too many speakers are connected.

When the device is set to low-impedance connection, the total impedance of the connected speakers is less than the impedance setting of this device.

The speaker cable is shorted. Inspect the connection of the speaker cables. The internal temperature of the device is

extremely high because heat dissipation slits are covered or the device is placed in a conﬁned place with poor ventilation.

The device settings do not match speaker impedance.

Turn off the power switch and make sure the connection is secure. Wait several minutes, and then turn on the power again.

Turn the [VOLUME] knob to the right.

external devices. Make sure that the external device outputs audio

signal.

to an external device.

power to the condenser microphone. Turn the [MIC IN 1] knob/the [MIC IN 2 GAIN] trimmer

to the left to lower the volume of the microphones. Lower the input volume from the external devices.

knob to the left to lower the EQ. Set the panel lock to off. (Press the [ST SOURCE]

knob three times within a second.)

Match the impedance settings of this device and the connected speakers.

Match the impedance setting and the input rating setting of this device and the speakers.

Match the impedance settings of this device and the speakers.

Turn off the power, leave the device at a well-ventilated place, and turn on the device several minutes later.

Match the impedance settings of this device and the connected speakers.

• Refer also to the Yamaha Pro Audio website that provides a FAQ (a list of frequently asked questions, with answers). http://www.yamahaproaudio.com/

• If taking the above steps does not solve the problem, contact your Yamaha dealer for repair.

Output Power

(20 msec burst, THD+N=1%)

Amplier Type (Output circuitry) Class D

THD+N

Frequency Response

Crosstalk

(MA2030a only)

AC Power Requirement

Power Consumption

(3Ω, AC 100 V)

Operating Temperature 0°C–+40°C Storage Temperature -20°C–+60°C

Dimensions (W x H x D, including knob)

Net Weight

Optional Accessories

8Ω/4Ω/3Ω 30 W x 2 ch 70 V/100 V 60 W x 1 ch

Stereo in à Speaker out, 1 kHz, 15 W, 8Ω/4Ω/3Ω Stereo in à Speaker out, 1 kHz, 30 W, 70 V/100 V Line in à Line out, 20 Hz–20 kHz Line in à Speaker out, 50 Hz–20 kHz, 1 W, 8Ω/4Ω/3Ω Line in à Speaker out, 90 Hz–20 kHz, 1 W, 70 V/100 V

Stereo in to other Stereo in

1/8 max. power, pink noise at all channel, Idle 25 W

Rack-mount Accessory RKH1

Digital Control Panel DCP1V4S-US/EU

≤

0.1%

≤

0.2%

0 dB, -2.5 dB, +1.0 dB

0 dB, -3.0 dB, +1.0 dB

≤

-70 dB

100 V/120 V/230 V-240 V,

50 Hz/60 Hz

30 W

215 x 54 x 288 mm

(8.5 x 2.1 x 11.4 inch)

1.8 kg

(4.0 lbs)

* The contents of this manual apply to the latest speciﬁcations as of the publishing date. To obtain the latest manual,

access the Yamaha website then download the manual ﬁle.

European Models Purchaser/User Information speciﬁed in EN55103-2:2009. Conforms to Environments: E1, E2, E3 and E4

Rear panel

MA2030a PA2030a

7 8 9 0 A B C D

AC IN connector

Connect the supplied power cord.

CAUTION

• When connecting the power cord, connect the power cord to the connector and then plug it into an appropriate AC power outlet.

• Before connecting or disconnecting the power cord, make sure that the power to the device is turned off.

[SPEAKERS] output terminals

Barrier strip type speaker output connectors. Refer to “Connecting Speaker Cables” for the installation instructions.

[OUTPUT] switch

Sets the output type of ampliﬁer: high-impedance connection ([100V], [70V]) or low-impedance connection ([8Ω/4Ω/3Ω]). The setting change will be reﬂected after turning on again.

[SETUP] DIP switches

Set the following functions of the device. The setting change will be applied after carrying out a power cycle by the Power switch on the front panel.

DIP switches 1/2: Speaker impedance setting

Sets the speaker impedance if the [OUTPUT] switch is set to [8Ω/4Ω/3Ω] (low-impedance connection).

1 2 Setting

8Ω or more

4Ω to less than 8Ω

3Ω to less than 4Ω

DIP switches 3/4: Ducker

Conﬁgure the settings for the Ducker function. This can mute the microphone input of other channels, and lower the volume of line input when signals are input to [MIC IN 1] or [MIC IN 2].

3 4 Setting

Ducker off

Ducker on when signals are input to [MIC IN 2].

Ducker on when signals are input to [MIC IN 1].

Ducker on when signals are input to [MIC IN 1] or [MIC IN 2]. If signals are input to both of them, [MIC IN 1] is given precedence.

DIP switches 5/6: Speaker EQ

Sets the speaker EQ that corrects the output signal to match the type of speakers that are connected.

5 6 Setting

Off

High pass ﬁlter 150Hz

Frequency correction tailored for Yamaha VXS series (Surface mount-type) speakers

Frequency correction tailored for Yamaha VXC series (Ceiling-type) speakers

7 9 0 E8

DIP switches 5/6/7: Speaker EQ

5 6 7 Setting

Off

High pass ﬁlter 150Hz

Low pass ﬁlter 150Hz

Low pass ﬁlter 200Hz

Frequency correction tailored for Yamaha VXS series (Surface mount-type) speakers

Frequency correction tailored for the Yamaha VXS10S/VXS10ST subwoofer (45–150Hz)

Frequency correction tailored for Yamaha VXC series (Ceiling-type) speakers

DIP switch 7: Leveler

Use the Leveler function to automatically adjust the volume to a relatively constant range if the input signals vary signiﬁcantly in volume.

7 Setting

Off

DIP switch 8: Mixer

In low-impedance installation of speakers, this sets the speaker output to stereo or mono.

8 Setting

MONO

STEREO

Note

• When the device is shipped from the factory, the DIP switches are all in the up position.

• The output of the [LINE OUT] jacks does not reﬂect the stereo/mono setting in [SETUP] DIP switch 8 (MIXER).

[DCP] connector

Connect one Yamaha Digital Control Panel DCP1V4S-US/EU. Refer to “Option 3 Operating with Control Panel” for connection method.

[LINE OUT] jacks

RCA type stereo output jack (unbalanced output). Outputs to the [LINE IN] jacks of PA2030a and line input jacks of other external devices. Outputs a mixed signal of the selected stereo input, the [MIC IN 1] jack input and the [MIC IN 2] jack input.

[ST IN 2] jacks/[ST IN 3] jacks

RCA type stereo input jack (unbalanced output). Connect external devices such as CD player, etc. Select input jacks with the [ST SOURCE] knob on the front panel.

[MIC IN 2] connector

Euroblock 3-pin connector for microphone audio input (balanced). Refer to “Attaching Euroblock Plugs” for Euroblock plug installation. The input signal is always processed through a high pass ﬁlter (120Hz, 12dB/oct.) to cut off low frequency signals as well as a Feedback Suppressor to suppress howling.

[MIC IN 2 GAIN] trimmer

Adjust the volume of microphone that is connected to the [MIC IN 2] connector. Adjust with a slotted driver of the correct size.

[LINE IN] jacks/connectors

RCA type and Euroblock 3-pin stereo input jacks/connectors (RCA: unbalanced; Euroblock 3-pin: balanced). Connect to the [LINE OUT] jacks of the MA2030a or output jacks of other external devices. The signals input from the RCA type jacks and Euroblock connector will be mixed to the output.

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, re or other hazards. These precautions include, but are not limited to, the following:

Power supply/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.

• 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 supplied power cord. If you intend to use the device in an area other than in the one you purchased, the included power cord may not be compatible. Please check with your Yamaha dealer.

• Check the electric plug periodically and remove any dirt or dust which may have accumulated on it.

• 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, as long as the power cord is not unplugged from the wall AC outlet, the device will not be disconnected from the power source.

• Remove the electric plug from the outlet when the device is not to be used for extended periods of time, or during electrical storms.

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

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.

Water warning

• Do not expose the device to rain, use it near water or in damp or wet conditions, or place on it any containers (such as vases, bottles or glasses) 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.

Hearing loss

• Avoid setting volume controls to their maximum. Depending on the condition of the connected devices, doing so may result in feedback that can cause hearing loss and damage the speakers.

• Do not use 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.

• When turning on the AC power in your audio system, always turn on the device LAST, to avoid hearing loss and speaker damage. When turning the power off, the device should be turned off FIRST for the same reason.

Fire warning

• Do not place any burning items or open ﬂames near the device, since they may cause a ﬁre.

If you notice any abnormality

• If any of the following problems occur, immediately turn off the power switch and disconnect the electric plug from the outlet. – The power cord or plug becomes frayed or damaged. – Unusual smells or smoke are emitted. – Some object has been dropped into the device. – There is a sudden loss of sound during use of the device. – Cracks or other visible damage appear on the device. Then have the device inspected or repaired 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.

PRECAUTIONS

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:

Power supply/power cord

• 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.

Location

• Do not place the device in an unstable position where it might accidentally fall over.

• Do not block the vents. This device has ventilation holes at the top/ sides/bottom 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.

• When installing the device and you wish to dissipate heat on it:

– Do not cover it with any cloth. – Do not install it on a carpet or rug. – Make sure the top surface faces up; do not install on its

sides or upside down.

– Do not use the device in a conﬁned, poorly-ventilated

location. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), or even ﬁre. If this device is to be used in a small space other than EIAstandard rack, make sure that there is adequate space around the device: at least 10 cm above, 1 cm below the bottom surface, 10 cm at the sides and 10 cm behind.

• 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.

• If the device is mounted in an EIA standard rack, carefully read the section “Precautions for rack mounting”. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), malfunction, or even ﬁre.

Connections

• Before connecting the device to other devices, turn off the power for all devices. Also, before turning the power of all devices on or off, make sure that all volume levels are set to the minimum. Failing to do so may result in electric shock, or equipment damage.

• Use only speaker cables for connecting speakers to the speaker jacks. Use of other types of cables may result in ﬁre.

Maintenance

• Remove the power plug from the AC outlet when cleaning the device.

Handling caution

• When the surface of the device heats up, do not touch it until the panel temperature goes down. Touching the surface with its high temperature may cause burns.

• Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) into any gaps or openings on the device (vents, 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 rest your weight on the device or place heavy objects on it. Avoid applying excessive force to the buttons, switches or connectors.

• Avoid pulling the connected cables to prevent injuries or damage to the device.

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

NOTICE

To avoid the possibility of malfunction/ damage to the product, or damage to other property, follow the notices below.

Handling and maintenance

• Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile phone, or other electric devices. Otherwise, the device, TV, or radio may generate noise.

• 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/under the device, since this might discolor the panel of the device or the objects placed on/under the device.

• Keep input cables of microphone, etc., devices that contain sensitive circuits, and the power cord at a distance from speaker cables and fasten the speaker cables in place. Since a large amount of current can ﬂow in a speaker cable, a magnetic ﬁeld will be generated and may produce radio interference and acoustic noise.

• When cleaning the device, use a dry and soft cloth. Do not use paint thinners, solvents, cleaning ﬂuids, or chemicalimpregnated 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 without turning on the power until the condensation has completely dried out.

• Do not use this device for any purpose other than driving loudspeakers.

• If you put the device on a table or a rack, do not remove the rubber feet from the device.

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

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.

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.

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:

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.

The model number, serial number, power requirements, etc., may be found on or near the name plate, which is at the bottom of the unit. You should note this serial number in the space provided below and retain this manual as a permanent record of your purchase to aid identiﬁcation in the event of theft.

Model No.

Serial No.

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Yamaha Pro Audio global website

http://www.yamahaproaudio.com/

Yamaha Downloads

http://download.yamaha.com/

Connectors

XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-).

Precautions for rack mounting

This unit is rated for operation at ambient temperatures ranging from 0 to 40 degrees Celsius. If the device is mounted with other devices in an EIA standard equipment rack, internal temperatures can exceed the speciﬁed upper limit, resulting in impaired performance or failure. If the device is mounted in a rack, always observe the following requirements to avoid heat buildup:

• If the device is mounted in a rack with other devices that generate a signiﬁcant amount of heat, such as a power ampliﬁer, leave more than 1U of space between the device and other devices (both above and below). Also, make sure to either leave any open spaces uncovered or install appropriate ventilating panels to minimize the possibility of heat buildup.

• To ensure sufﬁcient airﬂow, leave the rear of the rack open and position it at least 10 centimeters from walls or other surfaces. If you’ve installed a fan kit, there may be cases in which closing the rear of the rack will produce a greater cooling effect. Refer to the rack and fan unit manual for details.

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Yamaha Eco-Label

Yamaha Eco-Label is a mark that certiﬁes products of high environmental performance.

Manual Development Group

Published 10/2016 KSHD-A0

Printed in China