The BOSS RC-505mkII LOOP STATION is a versatile device designed for creating and manipulating loop phrases, offering extensive control over audio recording, playback, and effects. It allows users to record audio from microphones or musical instruments onto multiple tracks, apply various effects, and synchronize performances with a built-in rhythm section.
Function Description
The core function of the RC-505mkII is to enable the creation of "memories," which are comprehensive sets of settings including tracks, input FX, track FX, and rhythm. Users can store up to 99 such memories, facilitating diverse musical arrangements and live performances.
Tracks: The device features five tracks for recording and playing back audio. These tracks can be used individually or combined to build complex loop phrases. The recording process supports both initial "recording" onto an empty track and subsequent "overdubbing" to layer new audio onto existing recordings. Each track has its own volume slider and can be configured with specific playback methods (normal or reverse, one-shot or loop), stereo position (pan), playback level, start/stop modes, and overdubbing methods. Tracks also support "LOOP SYNC" to align phrases at the beginning and "TEMPO SYNC" to match their playback speed to a specified tempo.
Input FX and Track FX: The RC-505mkII offers a wide array of effects, categorized as "input FX" (applied to incoming audio) and "track FX" (applied to recorded tracks). Users can register up to 16 input/track FX (across 4 banks with 4 types each) to dedicated buttons for quick access. The [INPUT FX] and [TRACK FX] knobs allow real-time control over effect parameters. Effects can be turned on/off for individual tracks, and their settings can be customized and saved within a memory. The device supports switching between different FX banks and editing individual effect parameters.
Rhythm: A built-in rhythm section allows users to play rhythms alongside their loops. This feature is particularly useful for recording, as users can record while listening to a rhythm at a specified tempo. The rhythm settings include genre, pattern, variation, drum kit, time signature (beat), and various start/stop trigger methods (e.g., "LOOP START," "REC END," "BEFORE LOOP," "STOP TRIG," "OFF"). Users can also configure intro/ending sections and fill-ins for the rhythm, as well as timing for variation changes.
System Settings: Beyond individual memories, the RC-505mkII provides "system settings" that apply globally to the device. These include display contrast, USB and MIDI settings, input/output EQ, dynamics (compressor/noise suppressor), routing for audio outputs, master FX, and CTL/EXP assignments. The "ASSIGN" section allows users to map various parameters to physical controls (buttons, knobs, footswitches, expression pedals) or external MIDI devices, offering extensive customization for control.
USB Connectivity: The device can connect to a computer via USB 2.0, enabling several functions:
- Backup and Recovery: Users can back up the RC-505mkII's data to their computer and restore it later.
- USB Audio: The device can function as a USB audio interface, allowing computer audio to play through it and vice versa.
- USB MIDI: It supports MIDI synchronization with DAW software on a computer.
- BOSS TONE STUDIO: Integration with BOSS TONE STUDIO allows importing and backing up loop phrases (audio files).
- Rhythm Converter: A dedicated rhythm converter can be used to import and utilize original rhythm patterns.
MIDI Control: The RC-505mkII supports MIDI IN and OUT connections, allowing it to control external MIDI devices or be controlled by them. It can transmit tempo data (MIDI Clock), start/stop messages (MIDI Start/Stop), and Program Change messages (for switching memories). It can also receive Control Change messages to control its functions, offering deep integration into a larger MIDI setup. Two RC-505mkII units can be synchronized via MIDI for expanded looping possibilities.
Usage Features
Intuitive Interface: The RC-505mkII features a clear display and a well-organized control panel with dedicated buttons and knobs for tracks, effects, rhythm, and system functions. The [1]-[4] knobs are context-sensitive, adjusting parameters shown on the screen. The [] [] buttons facilitate navigation through menus and play screen variations.
Real-time Control: Dedicated [INPUT FX] and [TRACK FX] knobs allow for dynamic, real-time manipulation of effects, crucial for expressive performances. Track sliders provide immediate volume control for each loop.
Undo/Redo Functionality: The [UNDO/REDO] button offers a safety net for performances. When lit, track buttons can be used to undo or redo the most recent recording or overdub. The "MARK BACK" function further enhances this by allowing users to mark an overdubbed phrase and revert to that specific state later, even after multiple subsequent overdubs.
Memory Management: Users can easily save their created loop phrases and settings as "memories" to prevent data loss. The device also allows clearing memories to free up space or start fresh. Each memory can be assigned a custom name.
Flexible Input/Output: The RC-505mkII supports various input sources, including microphones (with phantom power for condenser mics) and instruments (guitar/bass, keyboards). Multiple output options (MAIN, SUB 1, SUB 2, PHONES) allow for flexible routing of audio, including parallel output configurations and headphone-specific monitoring.
Footswitch/Expression Pedal Support: External footswitches and expression pedals (sold separately) can be connected to CTL/EXP jacks, providing hands-free control over a wide range of functions, which is essential for live looping.
Tempo Control: The [TAP TEMPO] button allows users to set the tempo by tapping, with the option to return to the previous tempo by long-pressing. The tempo can also be precisely set using a knob.
Play Screen Variations: The device offers multiple play screens to display different information, such as memory number, track status, loop progress, FX status, and loop levels, allowing users to choose the most relevant view for their workflow.
Maintenance Features
Data Backup and Recovery: The USB connection facilitates easy backup of all device data to a computer, safeguarding valuable recordings and settings. In case of data corruption or accidental deletion, users can restore backed-up data.
Factory Reset: The "Factory Reset" function allows users to restore all settings to their default values, which can be useful for troubleshooting or starting with a clean slate. Users can choose to reset only memories, only system settings, or both.
Troubleshooting Guide: The manual includes a comprehensive troubleshooting section that addresses common issues related to sound, operation, MIDI, and USB connectivity, providing clear steps for diagnosis and resolution.
Error Message List: A dedicated list of error messages helps users understand and resolve issues indicated by the device, such as "DATA DAMAGED," "MEMORY FULL," or "TOO BUSY."
Safe Usage Guidelines: The manual emphasizes important safety precautions, including using only the supplied AC adaptor and power cord, careful handling of the ground terminal, and proper management of phantom power to prevent damage or malfunction. It also advises on proper power-on/off sequences and cautions against data loss if the unit is turned off without saving.
Regular Backups: Users are encouraged to make regular backups of their data to protect against irretrievable loss due to equipment failure or incorrect operation.
Software Updates: While not explicitly detailed in the provided text, BOSS devices typically support firmware updates via USB, ensuring the unit remains up-to-date with the latest features and bug fixes.