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ZV75780 EN ■ Low-impedance Connections (30W x 2 channels) Step 3 4 1 POWER AMPLIFIER 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. mark indicates content that is unique to the MA2030a, and indicates • 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 1 2 3 [SETUP] DIP switch Option 1 1 In a low-impedance installation, if speakers are placed in a stereo arrangement, set to stereo output. 6 [SETUP] DIP switch High-impedance connections Yamaha VXC series (ceiling-type) — *1: When stereo audio is output, the left channel signal is output from the [SPEAKERS A] terminals and the right channel signal is output from the [SPEAKERS B] terminals. 2 2 Rear panel 3 Speaker expansion Option 3 To AC outlet 4 Control Panel (DCP1V4S-US/EU) Volume adjustment Step 1 Connecting Speakers 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. RCA type mini-stereo type RCA type Switch 3 Switch 4 0 — — — — 1 Stereo 1 Stereo 2 Stereo 3 Mic. 1/2 Press and hold the [ST SOURCE] knob until the [ST SOURCE] indicator flashes. 2 Mic. 1 Mic. 2 Mic. 1 Mic. 2 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). 3 Mic. 1 Mic. 2 Mic. 1 Mic. 2 As the volume becomes fainter, the flashing rate of the [ST SOURCE] indicator becomes slower. 4 Mic. 1 — Mic. 1 — Push the [ST SOURCE] knob to complete the adjustment. 5 Mic. 2 — Mic. 2 — Select the stereo input with the loudest sound by rotating the [ST SOURCE] knob. The [ST SOURCE] indicator lights. 1 1 Using Microphones 1 Phone 1 2 Euroblock In case of high-impedance connection, the [SPEAKERS A] not used. Do not connect to the terminals. terminal to the positive “+” terminal to the negative “-” and [SPEAKERS B] terminals are Note In high-impedance settings, the speaker output is processed through a high pass filter (80Hz, 18dB/oct.). — — 7 Mic. 1 Mic. 2 — — Connecting Speaker Cables 2 3, 4 NOTICE Ensure that load is not applied to the speaker cable. When using a spade lug MA2030a front panel MA2030a rear panel PA2030a rear panel 2 3 Note Refer to “Attaching Euroblock Plugs” for Euroblock plug installation. 1 2 Make sure that this device and all devices to be connected are turned off. 4 Connect this device and any external devices with appropriate cables. Leveler (suppressing wide playback volume variations) [SETUP] DIP switch 7 [SETUP] DIP switch 7 Leveler disabled The Leveler function automatically suppresses and corrects for large changes in Leveler enabled the playback volume from external devices for a more consistent sound, such as when reproducing BGM (background music). Step 3 Connecting Power Cord and Turning On 1, 5 3 AC IN connector Power cord When using a bare conductor 4 MA2030a front panel 1 2 3 4 5 MA2030a rear 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. * Actual size 15mm* (0.6") ≥3.2mm (≥ 0.13") Wire should not touch the chassis. 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. Speaker cable Attaching Euroblock Plugs 1 Loosen Jack/connector [SETUP] DIP switch [MIC IN 1] 3 Ducker disabled Option 2 [MIC IN 2] 4 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. RCA 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. MA2030a rear panel PA2030a rear panel 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. 3 Approx. 5 mm (approx. 0.2") 4 Tighten Terminal screw Euroblock plug Note • You must use the supplied Euroblock plugs. If the plugs have been lost, please contact your Yamaha dealer. Expanding Speakers RCA 2 Slotted screwdriver Ducker (lowering the volume of the other channels automatically when a microphone signal is input) [SETUP] DIP switch 3/4 Make sure power switches of this device and devices connected to this device are position). turned off (in After turning on the connected devices (portable audio players, CD players, etc.), turn on this device. 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. ≤5.8mm (≤0.23") MA2030a rear panel Ducker enabled • When turning the system off, turn off this device, and then connected devices. Use speaker cables to connect the [SPEAKERS A] terminals of the speakers, and the [SPEAKERS B] terminals. Mic. 2 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. Note • Before turning on the power, please check that there are no problems with the cabling, connections, and so on. Set the speaker output to high-impedance by setting the [OUTPUT] switch to [100V] or [70V] corresponding to the maximum output voltage. Mic. 1 Note Refer to “DCP1V4S-US/DCP1V4S-EU Owner’s Manual” for DCP1V4S-US/EU installation. XLR NOTICE Maximum output voltage: 70V 6 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.) the phase will be reversed and the sound will not be output correctly. To AC outlet Maximum output voltage: 100V Knob Volume Euroblock CAUTION 1 DIP switch 1 2 3 4 Panel ID Switch 2 3, 4 • 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. 2 4 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. Loosen the screw, insert the spade lug all the way from below, and tighten the screw. 2 ■ High-impedance Connections (60W x 1 channel) 3 Sets the panel ID Note Connect the cables so that the amplifier’s “+” and “-” symbols match those of the speaker. If they are reversed, Yamaha Pro Audio site: “Better Sound for Commercial Installations”: http://www.yamahaproaudio.com/global/en/training_support/better_sound/ • 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 (0.5mm2) to AWG16 (1.3mm2) 2 Switch 1 Connecting External Devices Connect a BGM (background music) tuner, a CD player, a portable audio player, etc. to the stereo input jacks of this device. CD players, tuners, etc. Step Make sure that the [VOLUME SIGNAL] indicator lights according to the sound input and that sound comes from the speakers. Option 1 2 Ethernet CAT5e or more Straight cable (800m or less (24AWG)) Input audio signal from the external device, and rotate the [VOLUME] knob. MA2030a front panel Option 1 MA2030a rear panel Microphones Portable audio player, etc. Step The [ST SOURCE] indicator corresponding to the selected input signal lights. Mono output Stereo output (*1) When connecting to MA2030a, set the DIP switch 4 to ON (termination setting). ON Select a stereo input by rotating the [ST SOURCE] knob. Note Adjustable range: -18dB – 0dB, -9dB as the default setting Mono output Front panel Step Rear panel 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. 4 —: Setting is not required. (Either up or down can be used.) 2 Yamaha Digital Control Panel DCP1V4S-US/EU (maximum: one unit) PA2030a front panel Matching the volume levels of external devices (including microphones) 8 Low-impedance connections High-pass filter (150Hz) 2 1 2 3 Setting mono/stereo output [SETUP] DIP switch 8 For information on the speaker output settings of the PA2030a, refer to “Controls and functions.” Speakers Step 5 Connecting Yamaha Digital Control Panel DCP1V4S-US/EU to MA2030a enables you to control the volume, to switch inputs, etc. remotely. 2 MA2030a front panel terminals to the “+”/“-” terminals of the first / terminals to the “+”/“-” terminals of the second Yamaha VXS series (surface mount-type) Step 1 4Ω to less than 8Ω Set the [SETUP] DIP switch 1/2 corresponding to the specifications of the speakers to be connected. Setting the [SETUP] DIP switches optimizes the output signal to match Yamaha VXS/VXC speakers designed for commercial installations. Operating with Control Panel 8Ω or more Set the speaker output to low-impedance connection by setting the [OUTPUT] switch to [8Ω/4Ω/3Ω]. Connecting Yamaha Speakers [SETUP] DIP switch 5/6 3 2 ■ Configuration of Speaker Output Signal Setup Step 1 3Ω to less than 4Ω Off • Power cord (2.0m) • Euroblock plugs (3-pin, 3.50mm pitch) x 1 ,x2 • Technical Specifications: includes block diagram, dimensions, and input/output specifications. • Owner’s Manual (this sheet) [SETUP] DIP switch Speaker impedance Connect the [SPEAKERS A] / speaker, and the [SPEAKERS B] speaker. Option RJ-45 2 1 Adjusting Volume 1 2 3 4 • Recommended cable gauges for the Euroblock plug: AWG26 (0.13mm2) to AWG16 (1.3mm2) • 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. 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. 1 2 3 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.  Troubleshooting Controls and Connectors Front panel 4 [VOLUME SIGNAL] indicator Lights when signal output to speakers exceeds a certain level. MA2030a (PA2030a has only 4 and 6) Low-impedance connections [VOLUME LIMIT] indicator Signal level for which each indicator turns on Setting [VOLUME SIGNAL] [3Ω] -18.2 dBu or more [4Ω] -17.0 dBu or more Lights if signal output to the speakers exceeds [8Ω] -14.0 dBu or more the limit value, causing the limiter to activate, or if [70V] -0.8 dBu or more High-impedance the internal temperature of the device increases connections [100V] 2.2 dBu or more abnormally. If the limiter activates, turn the [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. Symptom 2 3 4 5 6 The power cord is disconnected. The protection function of the device has been activated. No sound is heard. The sound is lowered too much with the [VOLUME] knob. No audio signal is being input. The input is not selected. Adjusts the volume output to the speakers. Turning to the right increases the volume. Turning all the way to the left mutes the sound. 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. 2 [ST IN 1] jack 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. 6 Power indicator Input jack of mini-stereo type (unbalanced input). Connect a stereo audio source such as portable audio players. 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. 3 [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. The connected microphone is a condenser type. The sound distorts. 5 [SOURCE EQ BASS] knob 1 [MIC IN 1] jack The setting does not change even when turning a knob. The sound is weak. The sound drops out and the power indicator flashes three times. Turn on/off the power. WARNING CAUTION The power indicator continues flashing. The sound goes off. • 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. The input level from microphones or external devices is too high. The EQ level is too high. Power switch • 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. Solution The power does not turn on. [VOLUME] knob 1 Cause Specifications (MA2030a/PA2030a) 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. The device is set to low-impedance connection; 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. 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. Connect the power cord. 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. Make sure that this device is properly connected to external devices. Make sure that the external device outputs audio signal. Turn the [ST SOURCE] to select input jacks connected to an external device. Use a dynamic type microphone or supply phantom 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. Turn the [SOURCE EQ BASS]/[SOURCE EQ TREBLE] knob to the left to lower the EQ. Set the panel lock to off. (Press the [ST SOURCE] knob three times within a second.) Crosstalk (MA2030a only) 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. Inspect the connection of the speaker cables. Turn off the power, leave the device at a well-ventilated place, and turn on the device several minutes later. 30 W x 2 ch 60 W x 1 ch Class D ≤ 0.1% ≤ 0.2% 0 dB, -2.5 dB, +1.0 dB 0 dB, -3.0 dB, +1.0 dB 0 dB, -3.0 dB, +1.0 dB ≤ -70 dB Stereo in to other Stereo in 100 V/120 V/230 V-240 V, 50 Hz/60 Hz AC Power Requirement Power Consumption (3Ω, AC 100 V) 1/8 max. power, pink noise at all channel, Idle 30 W 25 W 0°C–+40°C -20°C–+60°C 215 x 54 x 288 mm (8.5 x 2.1 x 11.4 inch) 1.8 kg (4.0 lbs) Rack-mount Accessory RKH1 Digital Control Panel DCP1V4S-US/EU Operating Temperature Storage Temperature (W x H x D, including knob) Net Weight Optional Accessories * 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 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. PA2030a 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: Power supply/power cord 7 8 9 0 A B C 7 D 7 AC IN connector 5 CAUTION 6 0 E 7 Setting Off • 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. High pass filter 150Hz Low pass filter 150Hz 8 [SPEAKERS] output terminals Barrier strip type speaker output connectors. Refer to “Connecting Speaker Cables” for the installation instructions. Low pass filter 200Hz 9 [OUTPUT] switch Frequency correction tailored for Yamaha VXS series (Surface mount-type) speakers 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. Frequency correction tailored for the Yamaha VXS10S/VXS10ST subwoofer (45–150Hz) 0 [SETUP] DIP switches Frequency correction tailored for Yamaha VXC series (Ceiling-type) speakers 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). 2 8 9 DIP switches 5/6/7: Speaker EQ Connect the supplied power cord. Setting 8Ω or more 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 4Ω to less than 8Ω On 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]. 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 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). A [DCP] connector Connect one Yamaha Digital Control Panel DCP1V4S-US/EU. Refer to “Option 3 Operating with Control Panel” for connection method. B [LINE OUT] jacks 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 Frequency Response 8Ω/4Ω/3Ω 70 V/100 V (Output circuitry) 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 PRECAUTIONS MA2030a 3 THD+N Dimensions Rear panel 1 Output Power (20 msec burst, THD+N=1%) Amplifier Type 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 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. C [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. D [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. E [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. • 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. 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. NOTICE Connectors To avoid the possibility of malfunction/ damage to the product, or damage to other property, follow the notices below. XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-). Handling and maintenance Precautions for rack mounting • 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. 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. 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. 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. Maintenance 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. • Remove the power plug from the AC outlet when cleaning the device. Handling caution 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. • 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. 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. (weee_eu_en_02) 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. Yamaha Eco-Label Yamaha Eco-Label is a mark that certifies products of high environmental performance. Model No. Serial No. (bottom_en_01) Yamaha Pro Audio global website http://www.yamahaproaudio.com/ Yamaha Downloads http://download.yamaha.com/ Manual Development Group © 2016 Yamaha Corporation Published 10/2016 KSHD-A0 Printed in China