Roland WAZA-HD75 Users Manual

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Owner’s Manual

Guitar Amplifier

WAZA AMP HEAD 75

75 W output

BOSS WAZA AMP

Boss Waza Craftsmanship Evolves Into The Creation Of An Ultimate Rock Sound Amp

In the early 1960s, the evolution of the electric guitar and its components began influencing art. The sweet overdrive sound of what came to be known as the “sound of rock” was made possible by an impressive line of tube guitar amps. The evolution of these amps, reflecting the passion of master builders in search of an enhanced musical expression, gave birth to the legendary “brown sound.”This same passion is what inspired BOSS engineers in their pursuit of the ideal rock sound. While the basic circuit block designs of amps have not changed all that much, engineers over the years have painstakingly contributed to the evolution of the rock sound through many phases of inherited craftsmanship and tuning. Fast forward to today: the BOSS Waza Craftsmanship team, through their proven expertise, has given birth to the new BOSS Waza Amp. The BOSS Waza Amp has contributed to that evolutionary process through Waza Craftsmanship with the ideal brown sound for today’s passionate artists.

The Wisdom Of The Past Dictates The Future

The vintage Marshall JTM 45 amplifier circuitry was based on the popular 1959 Fender “Tweed” Bassman 5F6A circuit. Today, both are legendary amplifiers, each providing their own unique tone. As the first-generation amplifiers evolved, component and cosmetic changes often took place; therefore there are a few different variations of these early amplifiers. The Marshall amp had evolved to 100-watt amp heads such as the “Plexi.”The power tube is 6L6 for the Fender, but for the Marshall, four EL34s with a parallel push-pull design are used to meet the demand of musicians for more output. As a result, the EL34 sound has been established as the rock sound. Almost all stack amps have been tuned based on the basic circuitry of the early stack amp, including the new BOSS Waza Amp, which promises to carry on the legacy.

The Ideal Rock Sound Continues To Evolve

The representative hard rock sound of the ‘70s and ‘80s is known as the “brown sound.”What then, is the “Waza Brown Sound?” In developing the new Waza Amp, BOSS has been able to achieve the chewy sustain of the rich tube distortion, while at the same time achieving high clarity with a dynamic response to the picking nuances of the player. In addition, a chunky clean sound can be achieved just by turning down the guitar volume. The sustain of the lead sound is sweet, and the elastic rhythm sound has such high clarity that each note of a chord can be heard. The dynamic sound change reflected by a player’s picking emotion emphasizes the sound presence in a band ensemble. To produce the Waza Brown Sound, BOSS engineers devoted much time and effort in finding the perfect setting combinations, such as tweaking the AC power voltage and experimenting with various configurations while driving speaker and custom load boxes.

Persistent Ingenuity For Greater Expression

Through their circuitry tuning innovations and expertise, BOSS engineers have made specialized fine adjustments to achieve the ideal brown sound. Historically, there have been many masterpiece stack amps with complex overtone changes created by adding different distortions in each stage of serially connected multiple tubes. By adjusting the balance of each stage, the basic distortion is created. However, the basic sound is not expressive enough. Fine adjustments with the interaction of each stage of distortion and many other factors are very important. Not only that, by adjusting how much the interactive factors respond to a picking attack, and by controlling how the distortions of each stage vary as the sound sustains, a truly expressive sound can be created. Based on the accumulated expertise of BOSS regarding distortion and Roland with in Tube Logic, the “Waza Brown Sound” not only means the sound is “brown,” but that the expressiveness is also “brown.”

Roland WAZA-HD75 Users Manual

USING THE UNIT SAFELY

Before using this unit, carefully read the sections entitled “IMPORTANT SAFETY INSTRUCTIONS” (inside front cover), “USING THE UNIT SAFELY” (p. 2), and “IMPORTANT NOTES” (p. 3). These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature of your new unit, read Owner’s Manual in its entirety. This manual should be saved and kept on hand as a convenient reference.

Copyright © 2017 ROLAND CORPORATION

WARNING

AboutWARNING and CAUTION Notices

Used for instructions intended to alert the user to the risk of death or severe injury should the unit be used improperly.

Used for instructions intended to alert the user to the risk of injury or material damage should the unit be used improperly.

* Material damage refers to damage or other adverse effects caused with respect to the home and all its furnishings, as well to domestic animals or pets.

About the Symbols

The symbol alerts the user to important instructions or warnings.The specific meaning of the symbol is determined by the design contained within the triangle. In the case of the symbol at left, it is used for general cautions, warnings, or alerts to danger.

The symbol alerts the user to items that must never be carried out (are forbidden).The specific thing that must not be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the unit must never be disassembled.

The symbol alerts the user to things that must be carried out.The specific thing that must be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the power-cord plug must be unplugged from the outlet.

ALWAYS OBSERVE THE FOLLOWING

WARNING

Make sure that the power cord is grounded

Connect mains plug of this model to a mains socket outlet with a protective earthing connection.

To completely turn off power to the unit, pull out the plug from the outlet

Even with the power switch turned off, this unit is not completely separated from its main source of power. When the power needs to be completely turned off, turn off the power switch on the unit, then

pull out the plug from the outlet. For this reason, the outlet into which you choose to connect the power cord’s plug should be one that is within easy reach and readily accessible.

Secure a sufficient amount of space at the setup location

Since this unit normally emits a slight amount of heat, make sure to secure sufficient space around it, as shown below.

 

 

 

 

 

Front

 

 

 

 

 

 

 

Side

 

 

 

 

 

30 cm (12 in.)

5 cm (2 in.)

15 cm (6 in.)

 

 

 

 

 

or greater

or greater

or greater

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 cm (8 in.)

20 cm (8 in.)

 

 

 

 

or greater

or greater

 

 

 

 

Do not disassemble or modify by yourself

Do not carry out anything unless you are instructed to do so in the owner’s manual. Otherwise, you risk causing malfunction.

Do not repair or replace parts by yourself

Refer all servicing to your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the “Information.”

WARNING

Do not use or store in the following types of locations

• Subject to temperature extremes (e.g.,

direct sunlight in an enclosed vehicle, near a heating duct, on top of heat-generating equipment); or are

• Damp (e.g., baths, washrooms, on wet

floors); or are

• Exposed to steam or smoke; or are

• Subject to salt exposure; or are

Exposed to rain; or are

Dusty or sandy; or are

Subject to high levels of vibration and shakiness; or are

Placed in a poorly ventilated location.

Do not place in a location that is unstable

When using the unit with a speaker cabinet or a rack recommended by Roland, the stand must be carefully placed so it is level and sure to remain stable. If not using a stand, you still need to make sure that

any location you choose for placing the unit provides a level surface that will properly support the unit, and keep it from wobbling.

Connect the power cord to an outlet of the correct voltage

The unit should be connected to a power supply only of the type described as marked on the rear side of unit.

Use only the supplied power cord

Use only the attached power cord. Also, the supplied power cord must not be used with any other device.

Do not bend the power cord or place heavy objects on it

Otherwise, fire or electric shock may result.

Avoid extended use at high volume

Use of the unit at high volume for extended periods of time may cause hearing loss. If you ever experience any hearing loss or ringing in the ears, you should immediately stop using the unit and consult a specialized physician.

Do not allow foreign objects or liquids to enter unit; never place containers with liquid on unit

Do not place containers containing liquid (e.g., flower vases) on this product. Never allow foreign objects (e.g., flammable objects, coins, wires) or liquids (e.g., water or juice) to enter this product. Doing so may cause short circuits, faulty operation, or other malfunctions.

Turn off the unit if an abnormality or malfunction occurs

Immediately turn the unit off, remove the power cord from the outlet, and request servicing by your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the “Information” when:

The power cord has been damaged; or

If smoke or unusual odor occurs; or

Objects have fallen into, or liquid has been spilled onto the unit; or

The unit has been exposed to rain (or otherwise has become wet); or

The unit does not appear to operate normally or exhibits a marked change in performance.

Be cautious to protect children from injury

Always make sure that an adult is on hand to provide supervision and guidance when using the unit in places where children are present, or when a child will be using the unit.

Do not drop or subject to strong impact

Otherwise, you risk causing damage or malfunction.

Do not share an outlet with an unreasonable number of other devices

Otherwise, you risk overheating or fire.

Do not use overseas

Before using the unit in overseas, consult with your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the “Information.”

Turn the unit off before installing the Tone Capsule

Before installing the Tone Capsule, you

must first always turn off the WAZA AMP HEAD 75 and unplug its power

cord.

Don’t block ventilation openings

Don’t allow the unit’s ventilation openings to be blocked by a newspaper, tablecloth, curtains, or similar objects.

Don’t place burning objects on the unit

Don’t place any burning object (such as a candle) on the unit.

Be aware of weather conditions

Use the apparatus in moderate climates.

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IMPORTANT NOTES

CAUTION

When disconnecting the power cord, grasp it by the plug

To prevent conductor damage, always grasp the power cord by its plug when disconnecting it from this unit or from a power outlet.

Periodically clean the power plug

An accumulation of dust or foreign objects between the power plug and the power outlet can lead to fire or electric shock.

At regular intervals, be sure to pull out the power plug, and using a dry cloth,

wipe away any dust or foreign objects that may have accumulated.

Disconnect the power plug whenever the unit will not be used for an extended period of time

Fire may result in the unlikely event that a breakdown occurs.

Route all power cords and cables in such a way as to prevent them from getting entangled

Injury could result if someone were to trip on a cable and cause the unit to fall or topple.

CAUTION

Avoid climbing on top of the unit, or placing heavy objects on it

Otherwise, you risk injury as the result of the unit toppling over or dropping down.

Never connect/disconnect a power plug if your hands are wet

Otherwise, you could receive an electric shock.

Disconnect all cords/cables before moving the unit

Before moving the unit, disconnect the power plug from the outlet, and pull out all cords from external devices.

Before cleaning the unit, disconnect the power plug from the outlet

If the power plug is not removed from the outlet, you risk receiving an electric shock.

Whenever there is a threat of lightning, disconnect the power plug from the outlet

If the power plug is not removed from the outlet, you risk causing malfunction or receiving an electric shock.

CAUTION

Install only specified Tone Capsule

Install only the specified Tone Capsule (WAZA Amp compatible). Remove only the specified screws (p. 6).

Keep small items out of the reach of children

To prevent accidental ingestion of the parts listed below, always keep them out of the reach of small children.

Removable Parts

Thumb screws (p. 6) Screws (p. 7)

Take care not to get burned

The area shown in the illustration may become hot, so take care to avoid burns.

IMPORTANT NOTES

Power Supply

Do not connect this unit to same electrical outlet that is being used by an electrical appliance that is controlled by an inverter or a motor (such as a refrigerator, washing machine, microwave oven, or air conditioner). Depending on the way in which the electrical appliance is used, power supply noise may cause this unit to malfunction or may produce audible noise. If it is not practical to use a separate electrical outlet, connect

a power supply noise filter between this unit and the electrical outlet.

Placement

Using the unit near power amplifiers (or other equipment containing large power transformers) may induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away from the source of interference.

This unit may interfere with radio and television reception. Do not use this unit in the vicinity of such receivers.

Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit. Such noise could occur when receiving

or initiating a call, or while conversing. Should you experience such problems, you should relocate such wireless devices so they are at a greater distance from this unit, or switch them off.

When moved from one location to another where the temperature and/or humidity is very different, water droplets (condensation) may form inside the unit. Damage or malfunction may result if you attempt to use the unit in this condition. Therefore, before using the unit, you must allow it to stand for several hours, until the condensation has completely evaporated.

Depending on the material and temperature of the surface on which you place the unit, its rubber feet may discolor or mar the surface.

Do not place containers or anything else containing liquid on top of this unit. Also, whenever any liquid has been spilled on the surface of this unit, be sure to promptly wipe it away using a soft, dry cloth.

Maintenance

Never use benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or deformation.

Additional Precautions

Use a reasonable amount of care when using the unit’s buttons, sliders, or other controls; and when using

its jacks and connectors. Rough handling can lead to malfunctions.

When disconnecting all cables, grasp the connector itself—never pull on the cable. This way you will avoid causing shorts, or damage to the cable’s internal elements.

Heat will radiate from the unit during normal operation.

To avoid disturbing others nearby, try to keep the unit’s volume at reasonable levels.

Intellectual Property Right

Roland and BOSS are either registered trademarks or trademarks of Roland Corporation in the United States and/or other countries.

MMP (Moore Microprocessor Portfolio) refers to a patent portfolio concerned with microprocessor architecture, which was developed by Technology Properties Limited (TPL). Roland has licensed this technology from the TPL Group.

ASIO is a trademark and software of Steinberg Media Technologies GmbH.

This product contains eParts integrated software platform of eSOL Co.,Ltd. eParts is a trademark of eSOL Co., Ltd. in Japan.

Company names and product names appearing in this document are registered trademarks or trademarks of their respective owners.

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