BOSS RT-2 Rotary Ensemble Owner's Manual
Model: RT-2
Roland Corporation
Introduction
Before using this unit, carefully read "USING THE UNIT SAFELY" and "IMPORTANT NOTES" (the leaflet "USING THE UNIT SAFELY" and the Owner's Manual (p. 20)). After reading, keep the document(s) where it will be available for immediate reference.
Registering for Roland Backstage
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Use your smartphone to scan the 2D code of the card included with this product, or visit the following website: https://www.boss.info/start/
Panel Descriptions
The BOSS RT-2 Rotary Ensemble features several controls and connectors:
No. | Name | Explanation |
---|---|---|
1 | DC IN jack | Use this jack to connect a separately sold AC adaptor (PSA series). By using an AC Adaptor, you can play without being concerned about how much battery power you have left. Use only the specified AC adaptor (PSA series) which is sold separately, and connect it to an AC outlet of the correct voltage. If the AC adaptor is connected while power is on, the power supply is drawn from the AC adaptor. |
2 | CHECK indicator | This indicator shows whether the effect is on/off, and also shows the rotary speed and the battery state. The indicator lights when an effect is ON. When the rotor rotation speed is set to FAST, the indicator lights up red; and when the rotor rotation speed is set to SLOW, the indicator lights up green. The brightness of the CHECK indicator (LED) will dim as the battery lowers. Replace the battery when the LED is dim or does not light. For details on how to replace, refer to "Replacing the battery (p. 6)". |
3 | OUTPUT A (MONO) jack, OUTPUT B jack | Connect these jacks to your amp or monitor speakers. Use only the OUTPUT A (MONO) jack when using this unit in mono. For stereo output, use the OUTPUT A (MONO) and OUTPUT B jacks. When you connect to both the OUTPUT A (MONO) and OUTPUT B jacks, an effect is produced according to the OUTPUT MODE settings. For details, refer to "Selecting how the effect sound is output (OUTPUT MODE) (p. 14)". |
4 | INPUT A (MONO) jack, INPUT B jack | Connect your guitar, bass guitar, keyboard or effect unit to these jacks. If you're using this unit in mono, connect to the INPUT A (MONO) jack only. Use the INPUT A (MONO) and INPUT B jacks when connecting to an effect unit with stereo outputs. The INPUT A (MONO) jack doubles as the power switch. The power turns on when you insert a plug into the INPUT A (MONO) jack. |
5 | SPEED jack (CTL/EXP jack) | Connect a footswitch or expression pedal here. Using the jack as a CTL jack: Connect a separately sold footswitch (FS-5U, FS-6, FS-7) to control the switching between SLOW/FAST or the brake feature. Refer to "Using a footswitch (p. 9)" for the functions that can be assigned. Using the jack as an EXP jack: Connect a separately sold expression pedal (EV-30, Roland EV-5, etc.) to continuously change the effect settings for the expression pedal's pushed-up (horizontal) position and for the pushed-down (slanted) position. For more on function settings, refer to "Controlling the knob parameters using an expression pedal (EXP FUNCTION) (p. 10)". Use only the specified expression pedal. Connecting any other expression pedals may cause the unit to malfunction or become damaged. |
6 | Pedal switch | Turns the effect on/off, or switches between rotor speeds (SLOW/FAST). There are four types of pedal switches that you can change to suit your playing style. Type 1 is the factory setting. Type 1: (effect on/off priority) Lets you switch the effect on/off using the pedal. Long-press the pedal to toggle between SLOW and FAST. Type 2: (SLOW/FAST priority) Lets you switch between SLOW/FAST using the pedal. Long-press the pedal, then release the pedal to turn off the effect. When you press the pedal while the effect is off, this turns the effect on. Type 3: (effect on/off priority) Lets you switch the effect on/off using the pedal. When the effect is on, the setting is always SLOW. The FAST setting is used only while you long-press the pedal. Type 4: (effect on/off priority) Lets you switch the effect on/off using the pedal. When the effect is on, the setting is always FAST. The SLOW setting is used only while you long-press the pedal. |
7 | [FAST SPEED] knob | Adjusts the rotation speed of the rotor when switched to FAST. |
8 | [SLOW SPEED] knob | Adjusts the rotation speed of the rotor when switched to SLOW. |
9 | [LEVEL] knob | Adjusts the volume when the effect is on. |
10 | [DRIVE] knob | Adjusts the amount of distortion. When the [MODE] switch is set to "III", the amount of distortion and volume are emphasized. You can use the [DRIVE KNOB] switch to toggle the function of the [DRIVE] knob. |
11 | [MODE] switch | Mode I: This is the sound of the standard setting of a Leslie 122. This is the most typical of the three modes, and can be used for a wide range of instruments. Mode II: This is based on the sound of mode I, but is adjusted for a wider range. When combined with other distortion effect units, a natural sense of spaciousness can be obtained. Mode III: This is a new dimension of rotary sound that combines a strong sense of rotation and deeper distortion. Compared to other modes, the attack feel, sonic definition and the amount of distortion are emphasized, offering greater presence in an ensemble setting. |
12 | VIRTUAL ROTOR | The rotary speaker effect is shown by the movement of the indicator lights. The red light indicates the rotation of the treble rotor, and the blue light indicates the rotation of the bass rotor. |
13 | [RISE/FALL TIME] knob | Adjusts the rate of change when switching from SLOW to FAST or from FAST to SLOW. SLOW: The switching time is slower. FAST: The switching time is faster. |
14 | [DRIVE KNOB] switch | Toggles the function of the [DRIVE] knob. DRIVE: Adjusts the amount of distortion. BALANCE: Adjusts the balance between the treble rotor and the bass rotor. The most recent DRIVE and BALANCE values from the last time the knob was operated are stored in memory. When the unit is reset to its factory settings, DRIVE is reset to the minimum value and BALANCE is set to the center. To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units before making any connections. Do not use connection cables that contain a built-in resistor. |
Replacing the battery
About the battery
- This device already contains a battery when shipped from the factory. This is a test battery, which may not last as long as a new one.
- Use an alkaline battery if you are running the unit on battery power.
- If you handle the battery improperly, you risk explosion and fluid leakage. Make sure that you carefully observe all of the items related to batteries that are listed in the "USING THE UNIT SAFELY" and "IMPORTANT NOTES" leaflets for proper use.
- The sound may distort if the batteries are nearly depleted. This is not a malfunction. If this happens, replace the battery or use the separately sold AC adaptor.
NOTE
- When operating on battery power only, the CHECK indicator gets dimmer when battery power gets too low. Replace the batteries as soon as possible.
- If you notice noise when the unit is running on battery power, this may be because the battery is almost depleted. Try replacing the battery or using a separately sold AC adaptor.
- If the CHECK indicator keeps switching on and off when the unit is running on battery power, this may be because the battery is almost depleted. Try replacing the battery or using a separately sold AC adaptor.
Replacing the battery
Batteries should always be installed or replaced before connecting any other devices. In this way, you can prevent malfunction and damage.
Steps:
- Hold down the pedal and loosen the thumbscrew, then open the pedal upward. You don't need to take the thumbscrew out completely to open the pedal.
- Remove the old battery from the battery housing, and remove the snap cord connected to it.
- Connect the battery snap to the new battery, and place the battery inside the battery housing. Be sure to carefully observe the battery's polarity (+ versus -).
- Slip the coil spring onto the spring base on the back of the pedal, and then close the pedal. Carefully avoid getting the snap cord caught in the pedal, coil spring, and battery housing.
- Finally, hold down the pedal while tightening the thumbscrew into the guide bush hole.
Turning the power on/off
Once everything is properly connected, be sure to follow the procedure below to turn on their power. If you turn on equipment in the wrong order, you risk causing malfunction or equipment failure.
Before turning the unit on/off, always be sure to turn the volume down. Even with the volume turned down, you might hear some sound when switching the unit on/off. However, this is normal and does not indicate a malfunction.
Turning the power on
- Connect a plug to the INPUT A (MONO) jack. This turns on the RT-2. The unit turns on with the effect off (the CHECK indicator is unlit).
- Turn on your amp or other audio equipment.
MEMO: The CHECK indicator briefly lights up when this unit is turned on.
Turning the power off
- Turn off your amp or other audio equipment.
- Unplug the cable from the INPUT A (MONO) jack. This turns off the RT-2.
Connecting an external pedal
When using an external pedal (footswitch or expression pedal), connect as follows.
EXP
SPEED jack (CTL/EXP jack)
Mode/polarity switches
Diagrams illustrating connections for FS-5U, FS-5Ux2, FS-6, FS-7, and Roland EV-5 expression pedals are provided, along with details on their mode and polarity switches.
Using a footswitch
You can connect a footswitch to the SPEED jack (CTL/EXP jack) to switch between SLOW/FAST and operate the brake.
Footswitch | CTL1 function | CTL2 function |
---|---|---|
FS-5U | Toggle between SLOW/FAST | - |
FS-5U x 2, FS-6, FS-7 | Toggle between SLOW/FAST | Operate the brake |
NOTE: When the footswitch is connected, the pedal switch on this unit is limited to switching the effect on/off. Toggling between SLOW/FAST cannot be done with the pedal switch in this case.
Operating the brake
You can operate the brake to stop the rotation of the rotor.
- Press footswitch CTL2. The rotor stops rotating. The time until the rotor stops rotating depends on the position of the [RISE/FALL TIME] switch. When the switch is on the SLOW side, the time until rotation stops is longer; and when the switch is on the FAST side, the time until rotation stops is shorter.
- To release the brake, press footswitch CTL2 again.
Controlling the knob parameters using an expression pedal (EXP FUNCTION)
You can control the rotary speaker rotation speed as well as the LEVEL, DRIVE and BALANCE settings with a separately sold expression pedal (such as a Roland EV-30 or EV-5) that you've connected to the SPEED jack.
You can set the respective values for when the expression pedal is at MAX position (pressed down firmly with your toes) and at MIN position (pressed down firmly with your heel), and make continuous changes.
With the factory settings, the rotation speed of the rotary speaker can be controlled by the expression pedal.
Follow the steps below to change the parameter that's controlled by the expression pedal:
- Turn off the RT-2 (unplug the cable from the INPUT A (MONO) jack).
- Turn the [FAST] knob to the maximum (MAX) setting.
- Turn all other knobs besides the [FAST] knob to the minimum (MIN) setting.
- Set the [MODE] switch to the "III" position.
- Turn on the power by connecting a plug to the INPUT A (MONO) jack while holding down the pedal switch. The CHECK indicator blinks, and the unit enters settings mode.
- Use the [DRIVE] knob to select the parameter to assign to the expression pedal. The VIRTUAL ROTOR display changes according to the parameter selected.
Virtual rotor (red) display | Explanation |
---|---|
Lights up at the 12 o'clock position | Controls the LEVEL. |
Lights up at the 3 o'clock position | Controls the DRIVE. |
Lights up at the 6 o'clock position | Controls the BALANCE. |
Lights up at the 9 o'clock position (factory setting) | Controls the rotation speed of the rotary speaker. When you press down on the expression pedal with your heel, the value changes until it reaches the setting of the [SLOW] knob; and when you press down on the expression pedal with your toes, the value changes until it reaches the setting of the [FAST] knob. The CHECK indicator lights up orange while the expression pedal is controlling the rotation speed. |
- Use the [SLOW] knob to set the minimum value that's reached when you press the expression pedal with your heel. This can't be set if you've selected the rotation speed of the rotary speakers in step 6.
- Use the [FAST] knob to set the maximum value that's reached when you press the expression pedal with your toes. This can't be set if you've selected the rotation speed of the rotary speakers in step 6.
- Press the pedal switch. The CHECK indicator rapidly blinks red, and the expression pedal parameter settings are stored in memory. The device can be used normally after around 2-3 seconds. This setting is remembered even after the power is turned off.
NOTE:
- Under the following conditions, the pedal switch only works as the effect on/off switch, regardless of the action of the pedal switch you set.
- When an expression pedal is connected to the SPEED jack (CTL/EXP jack), and is set to control the rotary speaker rotation speed.
Changing how the pedal switch works
With the factory settings, the effect can be turned on/off by operating the pedal switch, and you can switch between SLOW/FAST by long-pressing the pedal switch. This behavior can be changed.
You can select how the pedal works according to your playing style. For example, you can switch between SLOW/FAST by pressing the pedal switch, or switch to SLOW (FAST) only while pressing and holding the pedal.
Follow the steps below to change how the pedal switch works:
- Turn off the RT-2 (unplug the cable from the INPUT A (MONO) jack).
- Turn the [SLOW] knob to the maximum (MAX) setting.
- Turn all other knobs besides the [SLOW] knob to the minimum (MIN) setting.
- Set the [MODE] switch to the "I" position.
- Turn on the power by connecting a plug to the INPUT A (MONO) jack while holding down the pedal switch. The CHECK indicator blinks, and the unit enters settings mode.
- Use the [DRIVE] knob to select the type of pedal switch. The VIRTUAL ROTOR display changes according to the type selected.
Type | VIRTUAL ROTOR (blue) display | Explanation |
---|---|---|
Type 1 (factory setting) | Lights up at the 12 o'clock position | Operating the pedal switch: Toggles the effect on/off. Long-pressing the pedal switch: Toggles between SLOW/FAST, regardless of whether the effect is on or off. |
Type 2 | Lights up at the 3 o'clock position | Operating the pedal switch: When you press the pedal while the effect is off, this turns the effect on. When you press the pedal while the effect is on, this toggles between SLOW/FAST. Long-pressing the pedal switch: When you press the pedal while the effect is on, the CHECK indicator blinks. When you release the pedal switch, the effect turns off. |
Type 3 | Lights up at the 6 o'clock position | Operating the pedal switch: Toggles the effect on/off. The effect always turns on in SLOW mode. Long-pressing the pedal switch: The effect operates in FAST mode while the pedal is pressed. Release the pedal switch to return to SLOW mode. |
Type 4 | Lights up at the 9 o'clock position | Operating the pedal switch: Toggles the effect on/off. The effect always turns on in FAST mode. Long-pressing the pedal switch: The effect operates in SLOW mode while the pedal is pressed. Release the pedal switch to return to FAST mode. |
- Press the pedal switch. The CHECK indicator rapidly blinks red, and the pedal switch operation is stored in memory. The device can be used normally after around 2-3 seconds. This setting is remembered even after the power is turned off.
NOTE:
- Under the following conditions, the pedal switch only works as the effect on/off switch, regardless of the action of the pedal switch you set.
- When a footswitch is connected to the SPEED jack (CTL/EXP jack; switch between SLOW/FAST using the footswitch).
- When an expression pedal is connected to the SPEED jack (CTL/EXP jack), and is set to control the rotary speaker rotation speed.
Selecting how the effect sound is output (OUTPUT MODE)
By changing the output mode, you can change the way the effect sound is output.
Follow the steps below to change the output mode:
- Turn off the RT-2 (unplug the cable from the INPUT A (MONO) jack).
- Turn the [FAST] knob to the maximum (MAX) setting.
- Turn all other knobs besides the [FAST] knob to the minimum (MIN) setting.
- Set the [MODE] switch to the "I" position.
- Turn on the power by connecting a plug to the INPUT A (MONO) jack while holding down the pedal switch. The CHECK indicator blinks, and the unit enters settings mode.
- Set the [MODE] switch to the position that corresponds to the desired output mode.
[MODE] switch position | CHECK indicator color | Explanation |
---|---|---|
I | Color of current setting | Shows the current output mode. The output mode is not changed. For an explanation of the colors that correspond to the current output mode, see the "red" and "green" descriptions below. |
II | Red | Stereo output: (factory setting) The OUTPUT A (MONO) and OUTPUT B jacks are used to output individual effects, creating a stereo effect. |
III | Green | Effect (wet) sound + direct (dry) sound: The effect (wet) sound is output from the OUTPUT A (MONO) jack, and the direct (dry) sound is output from the OUTPUT B jack. |
- Press the pedal switch. The CHECK indicator rapidly blinks red, and the output mode setting is stored in memory. The device can be used normally after around 2-3 seconds. This setting is remembered even after the power is turned off.
Configuring the noise suppressor
The RT-2 has a built-in noise suppressor that can cut unwanted noise.
Follow the steps below to change how the noise suppressor works:
- Turn off the RT-2 (unplug the cable from the INPUT A (MONO) jack).
- Turn the [SLOW] knob to the maximum (MAX) setting.
- Turn all other knobs besides the [SLOW] knob to the minimum (MIN) setting.
- Set the [MODE] switch to the "III" position.
- Turn on the power by connecting a plug to the INPUT A (MONO) jack while holding down the pedal switch. The CHECK indicator blinks, and the unit enters settings mode.
- Set the [MODE] switch to the position that corresponds to the desired noise suppressor effect.
[MODE] switch position | CHECK indicator color | Explanation |
---|---|---|
I | Red | Switches the noise suppressor off (factory setting). |
II | Green | This noise suppressor setting is effective for low noise levels. |
III | Orange | This noise suppressor setting is effective for high noise levels. |
With this setting, you can monitor the sound of the effect. This lets you configure the noise suppressor while checking its effectiveness.
- Press the pedal switch. The CHECK indicator rapidly blinks red, and the noise suppressor setting is stored in memory. The device can be used normally after around 2-3 seconds. This setting is remembered even after the power is turned off.
Restoring the factory settings (factory reset)
- Turn off the RT-2 (unplug the cable from the INPUT A (MONO) jack).
- Set the [RISE/FALL TIME] switch to the "FAST" position.
- Set the [DRIVE KNOB] switch to the "BALANCE” position.
- Turn the [SLOW] knob to the maximum (MAX) setting.
- Turn all other knobs besides the [SLOW] knob to the minimum (MIN) setting.
- Set the [MODE] switch to the "II" position.
- Turn on the power by connecting a plug to the INPUT A (MONO) jack while holding down the pedal switch. The CHECK indicator slowly blinks orange.
- Press the pedal switch. The CHECK indicator rapidly blinks orange. Once the CHECK indicator lights up orange continuously, the RT-2 is restored to its factory settings.
- Turn off the power (unplug the cable from the INPUT A (MONO) jack).
Factory parameter settings
Parameter | Value |
---|---|
OUTPUT MODE | Stereo output |
EXP FUNCTION | Rotation speed (SLOW/FAST) of the rotary speaker |
Noise suppressor | Off |
Pedal switch type | Type 1 (on/off priority, long-press to switch between SLOW/FAST) |
DRIVE | Minimum |
BALANCE | Center |
Troubleshooting
Problem | Items to Check | Action |
---|---|---|
Power does not turn on | Is a plug connected to the INPUT A (MONO) jack? | Make sure that the plug is properly connected. |
The battery may be nearly depleted. | Replace the battery with a new one. If using AC power, make sure that the AC adaptor (sold separately) is properly connected. | |
CHECK indicator is dim, or repeatedly lights up and then goes dark | Is the specified PSA series AC adaptor (sold separately) connected correctly? | Make sure that the AC adaptor is properly connected. |
The battery may be nearly depleted. | Replace the battery with a new one. If using AC power, make sure that the AC adaptor (sold separately) is properly connected. | |
No sound | Have the output mode settings been made correctly? | Check the output mode settings and the OUTPUT jack connection. →"Selecting how the effect sound is output (OUTPUT MODE) (p. 14)" |
Is your output device correctly connected to the OUTPUT jack? | ||
The sound does not distort when the [DRIVE] knob is turned, or the sound is muffled or thin | The [DRIVE KNOB] switch might be set to the "BALANCE" position. | Set the [DRIVE KNOB] switch to the "DRIVE" position and then turn the [DRIVE] knob. |
The output sound is noisy | The battery may be nearly depleted. | Replace the battery with a new one. If using AC power, make sure that the AC adaptor (sold separately) is properly connected. |
Main specifications
Specification | Details |
---|---|
Sample Rate | 48 kHz |
AD Conversion | 24 bits + AF method |
DA Conversion | 32 bits |
Nominal Input Level | INPUT A (MONO), INPUT B: -20 dBu |
Maximum Input Level | INPUT A (MONO), INPUT B: +7 dBu |
Input Impedance | INPUT A (MONO), INPUT B: 1 MΩ |
Nominal Output Level | OUTPUT A (MONO), OUTPUT B: -20 dBu |
Maximum Output Level | OUTPUT A (MONO), OUTPUT B: +7 dBu |
Output Impedance | OUTPUT A (MONO), OUTPUT B: 1 kΩ |
Recommended Load Impedance | OUTPUT A (MONO), OUTPUT B: 10 kΩ or greater |
Bypass | Buffered bypass |
Controls | [SLOW] knob, [FAST] knob, [DRIVE] knob, [LEVEL] knob, [MODE] switch, Pedal switch, [RISE/FALL TIME] switch, [DRIVE KNOB] switch |
Indicator | CHECK indicator (Used for indication of Tempo and check battery), VIRTUAL ROTOR |
Connectors | INPUT A (MONO) jack, INPUT B jack, OUTPUT A (MONO) jack, OUTPUT B jack: 1/4-inch phone type, CTL/EXP jack: 1/4-inch TRS phone type, DC IN jack |
Power Supply | Alkaline battery (9 V, 6LR61 or 6LF22, commercially available), AC adaptor (PSA series: sold separately) |
Current Draw | 115 mA |
Expected battery life under continuous use | Alkaline: Approx. 2.5 hours * These figures will vary depending on the actual conditions of use. |
Dimensions | 73 (W) x 129 (D) x 59 (H) mm, 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches |
Weight (including battery) | 450 g, 1 lb |
Accessories | Leaflet ("USING THE UNIT SAFELY", "IMPORTANT NOTES", and "Information"), Dry battery (9 V, 6LR61 or 6LF22) |
Options (sold separately) | AC adaptor: PSA series, Footswitch: FS-5U, Dual footswitch: FS-6, FS-7, Expression pedal: FV-500H, FV-500L, EV-30, Roland EV-5 |
* 0 dBu = 0.775 Vrms
* This document explains the specifications of the product at the time that the document was issued. For the latest information, refer to the Roland website.
Important notes
- Batteries should always be installed or replaced before connecting any other devices. This way, you can prevent malfunction and damage.
- If the battery (batteries) run extremely low, the sound may distort / interruptions in the sound may occur at high volume levels, but this does not indicate a malfunction. If this occurs, please replace the battery (batteries) / use the AC adaptor (sold separately).
- If operating this unit on batteries, please use alkaline batteries.
- Even if batteries are installed, the unit will turn off if you connect or disconnect the power cord from the AC outlet while the unit is turned on, or if you connect or disconnect the AC adaptor from the unit. You must turn off the power before you connect or disconnect the power cord or AC adaptor.
- Never strike or apply strong pressure to the display.
- This unit allows you to display using an LED at high speed. For some people, viewing such images can cause headache, nausea, or other discomfort. Do not use this unit to create video that might cause these types of health problems. Roland Corporation will accept no responsibility for any such health problems that may occur in yourself or in viewers.
SUPPLIER'S DECLARATION OF CONFORMITY
Compliance Information Statement
Model Name: RT-2
Type of Equipment: Guitar Effects
Responsible Party: Roland Corporation U.S.
Address: 5100 S. Eastern Avenue Los Angeles, CA 90040-2938
Telephone: (323) 890-3700
For the USA
Intellectual property right
- This Product uses the Source Code of µT-Kernel under T-License 2.0 granted by the T-Engine Forum (www.tron.org).
- This product includes third party open source software. Copyright © 2009-2020 ARM Limited. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
- Roland, BOSS and ROTARY ENSEMBLE are either registered trademarks or trademarks of Roland Corporation in the United States and/or other countries.
- Company names and product names appearing in this document are registered trademarks or trademarks of their respective owners.