BOSSCO Rotary Ensemble RT-20 Manual de usuario

Thank you, and congratulations on your choice of BOSS RT-20 Rotary Sound Processor.

Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY”

and “IMPORTANT NOTES” (separate sheet).

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

provided by your new unit, this manual should be read in its entirety. The manual should

be saved and kept on hand as a convenient reference.

Main Features

●

COSM Modeling faithfully creates the speaker characteristics, internal cabinet resonance,

rotation speed adjustments, and other particular elements of the rotary speaker to provide

realistic reproduction of the rotary speaker sound.

●

Includes overdrive, a must for rock sounds.

●

Features four internal sounds, from the conventional rotary sound to rock sounds and UNI-

V, a sound known and loved by many guitarists.

●

Expression pedal can be used to freely control the rotation speed.

●

Permits adjustment of the balance for the horn speaker and bass speaker volume levels,

something difficult to accomplish with the original speakers. Use the knob to make changes

in the tone, from sharp to mild, in real time.

●

Features Virtual Rotor Display that displays the speaker rotation effectively as a visual

image.

COSM (Composite Object Sound Modeling)

Composite Object Sound Modeling (COSM) is BOSS/Roland’s

innovative and powerful sound modeling technology.

COSM analyzes the many factors that make up the original sound,

such as the electrical and physical characteristics of the original, and

then produces a digital model that can reproduce the same sound.

any form without the written permission of BOSS CORPORATION.

Contents

Main Features .................................................. 1

Installing Batteries ........................................... 3

Making the Connections ................................... 4

Mono Connection ............................................................................ 5

Stereo Connection........................................................................... 6

Operating the RT-20......................................... 7

Pedal Operation .............................................................................. 7

Panel Operation .............................................................................. 8

Adjusting the Balance of the HORN Rotor and BASS rotor volume ....... 9

Adjusting the Rotor’s Rotation Speed .......................................................... 9

Adjusting the Rate at Which the Speed Changes

When Switching from SLOW to FAST and FAST to SLOW ..................... 9

Mixing the Direct Sound................................................................................. 9

Operating the SLOW/FAST Pedal................................................................ 9

Operating the BRAKE................................................................................... 10

Controlling the RT-20 with an Expression Pedal...................................... 10

Names of Things and What They Do............... 11

Front Panel.................................................................................... 11

Mode List ........................................................................................................ 13

Rear Panel .................................................................................... 14

Troubleshooting ............................................. 15

Sample Settings ............................................. 16

Setting Memo................................................. 17

Main Specifications ........................................ 18

Installing Batteries

Batteries are supplied with the unit. The life of these batteries may be limited,

however, since their primary purpose was to enable testing.

Insert the included batteries as shown in figure, being careful to orient the batteries

correctly.

fig.010

• When turning the unit upside-down, get a bunch of newspapers or magazines, and

place them under the four corners or at both ends to prevent damage to the buttons

and controls. Also, you should try to orient the unit so no buttons or controls get

damaged.

• When turning the unit upside-down, handle with care to avoid dropping it, or

allowing it to fall or tip over.

• Make sure the “+” and “–” ends of the batteries are oriented correctly.

• When the batteries run down, the POWER indicator gets dim. If this happens, replace

with new batteries.

• When replacing the batteries, use six AA type.

•Avoid using new batteries together with used ones. In addition, avoid mixing different

types of batteries. Doing so can result in fluid leakage.

• Battery life can vary depending on battery type.

Continuous usage time under battery power is about 10 hours with alkaline batteries

and about 6 hours with carbon batteries. (This may vary according to usage

conditions.)

Making the Connections

• The use of an AC adaptor is recommended as the unit’s power consumption is

relatively high. Should you prefer to use batteries, please use the alkaline type.

• 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.

• Use a cable from Roland to make the connection. If using some other make of

connection cable, please note the following precautions.

•Some connection cables contain resistors. Do not use cables that incorporate resistors

for connecting to this unit. The use of such cables can cause the sound level to be

extremely low, or impossible to hear. For information on cable specifications, contact

the manufacturer of the cable.

• When the unit is running on battery power, the power comes on when you insert the

connector plug into the INPUT A (MONO) jack.

• To prevent malfunction and/or damage to speakers or other devices, always turn

down the volume, and turn off the power on all devices before making any

connections.

• If there are batteries in the unit while an AC adaptor is being used, normal operation

will continue should the line voltage be interrupted (power blackout or power cord

disconnection).

• Once the connections have been completed, turn on power to your various devices in

the order specified. By turning on devices in the wrong order, you risk causing

malfunction and/or damage to speakers and other devices.

When powering up: Turn on the power to your guitar amp

last

When powering down: Turn off the power to your guitar amp

first

• Always make sure to have the volume level turned down before switching on power.

Even with the volume all the way down, you may still hear some sound when the

power is switched on, but this is normal, and does not indicate a malfunction.

• When operating on battery power only, the POWER indicator will become dim when

battery power gets too low. Replace the battery as soon as possible.

• 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.

Making the Connections

Mono Connection

■

Guitar

fig.020

■

Keyboard

fig.030

Electric Guitar

Guitar Amp

AC Adaptor

PSA series

(sold separately)

Set DRIVE TYPE switch

to GUITAR

Keyboard MTR Mixer

Set DRIVE TYPE switch

to KEYBOARD

AC Adaptor

PSA series

(sold separately)

Making the Connections

Stereo Connection

■

Guitar

fig.060

■

Keyboard

fig.070

Effector

Electric Guitar Guitar Amp

AC Adaptor

PSA series

(sold separately)

Set DRIVE TYPE switch

to GUITAR

Keyboard MTR Mixer

AC Adaptor

PSA series

(sold separately)

Set DRIVE TYPE switch

to KEYBOARD

Operating the RT-20

Pedal Operation

When “ON” When “OFF”

Lit Off

EFFECT ON/OFF Pedal

Alternately switches the effect on or off

each time the pedal is pressed.

When switched off, the sound input to the

INPUT jack is output without change.

When set to “SLOW” When set to “FAST”

Off

Lit

SLOW/FAST Pedal

Switches the rotor’s rotation speed each

time the pedal is pressed.

Operating the RT-20

Panel Operation

For this description of using the pedals, first press the EFFECT ON/OFF pedal to

switch on the effect (ON/OFF indicator lit), and press the SLOW/FAST pedal to

switch the setting to SLOW (SLOW/FAST indicator off).

In addition, set the knobs to the positions shown in the figure.

fig.080

Set the DRIVE TYPE switch on the rear panel to match the type of instrument being

used.

Refer to “Making the Connections” (p. 5–p. 6).

Use the MODE knob to select the desired rotary speaker effect from the four types.

Turn the OVERDRIVE knob to adjust the amount of drive applied.

Adjust the EFFECT ON volume by turning the EFFECT LEVEL knob.

While the settings described above produce a rotary speaker sound, The RT-20 allows

you to control the following factors that are difficult to control with conventional

rotary speakers.

• Adjust the balance of the HORN rotor and BASS rotor volume

• Adjust the rotor’s rotation speed

•Adjust the rate at which the speed changes when switching from SLOW to FAST

and FAST to SLOW

• Mix the direct sound

Operating the RT-20

Adjusting the Balance of the HORN

Rotor and BASS rotor volume

You can adjust the balance in volume from

the horn rotor and bass rotor inside the

rotary speaker with the BALANCE knob.

fig.081

Adjusting the Rotor’s

Rotation Speed

You can adjust the rotor rotation speed using

the SLOW SPEED and FAST SPEED knobs.

Turning these knobs to the center position

sets the rotor speed to the standard rotation

speed.

fig.082

Adjusting the Rate at Which the Speed

Changes When Switching from SLOW

to FAST and FAST to SLOW

You can adjust the rate at which the rotation

changes from slow to fast and vice versa with

the RISE TIME knob.

Turn the knob to the left to slow down the

rate of change; turn the knob to the right to

increase the rate.

When this knob is at the center position, the

rise time is set to the standard setting.

fig.083

Mixing the Direct Sound

If you want to retain the nuance of the direct

sound used by the guitar or other

instrument, you can add the direct sound

using the DIRECT knob.

* If you want to reproduce the regular rotary

speaker sound, turn this knob completely to

the left to shut off the direct sound.

fig.084

Operating the SLOW/FAST Pedal

You can switch the rotor’s rotation speed by

pressing the SLOW/FAST pedal.

When set to SLOW, the SLOW/FAST

indicator is switched off; the indicator is lit

when the speed is set to FAST.

Operating the RT-20

Operating the BRAKE

You can use the brake to stop the rotation of

the rotor.

Pressing both of the pedals simultaneously

stops the rotation of the rotor.

The SLOW/FAST indicator flashes rapidly

while the brake is on.

The time required for the rotor to come to a

stop after the BRAKE is activated changes

according to the position of the RISE TIME

knob.

The time required for the rotor to stop

increases as the knob is turned further left

from the center position; turning the knob to

the right of the center position decreases the

time required for the rotor to stop.

fig.090

To cancel the BRAKE, pressing either the

light pedal or both left and right pedals

simultaneously.

The rotor always faces directly in front when

stopped.

Controlling the RT-20

with an Expression Pedal

You can connect an optional expression

pedal (such as the Roland EV-5) to the rear

panel SPEED (EXP PEDAL) jack and use the

pedal to control the rotor’s rotation speed in

real time.

fig.100

With the expression pedal fully released, the

RT-20 switches to the value set with the

SLOW SPEED knob; depressing the pedal all

the way switches the RT-20 to the value set

with the FAST SPEED knob.

* The SLOW/FAST indicator flashes when an

expression pedal is connected.

* Operation of the SLOW/FAST pedal is disabled

while the expression pedal is connected.

* You can also use an expression pedal to operate

the BRAKE.

* Use only the specified expression pedal (EV-5;

sold separately). By connecting any other

expression pedals, you risk causing malfunction

and/or damage to the unit.

Both pressed

simultaneously

Flashes

rapidly

Expression pedal

(Roland EV -5, etc.)

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