• Compact effects processor that expands the capabilities of any pedalboard
• 120 premium BOSS effects, including overdrives/distortions, mod effects, delays, reverbs, and more
• Run up to four effects at once, including multiple instances of the same effect
• Dedicated utility blocks, including foot volume, two noise suppressors, send/return, and divider/mixer
• Fluid operation with an informative color display, intuitive knobs, and dedicated FX buttons
• Independent global EQ for overall sound shaping
• Gear Suite feature allows you to quickly configure each effect with the turn of a knob
• Control effects using dual multi-function footswitches with color LEDs
• Versatile mono/stereo I/O, flexible effect loop, and space-saving TRS MIDI jacks
• Manual and Memory modes for stompbox-style or preset-based effect control
• 128 preset memories for guitar and bass, plus 128 user memories for saving custom sounds
• Create complex effect configurations with advanced series, parallel, and wet/dry options
• Use the effect loop to build reorderable chains with external pedals
• Seamless memory changes with full carryover of delay and reverb effects possible with certain effect configurations
• Use the footswitches for basic effect and preset control, or access deeper assignment features for sophisticated custom operation

Sampling Frequency
    48 kHz

AD Conversion
    24 bits + AF method
    *AF method (Adaptive Focus method) This is a proprietary method from Roland & BOSS that vastly improves the signal-to-noise (SN) ratio of the AD and DA converters.

DA Conversion
    32 bits

Processing
    32-bit floating point

Effects
    120 types

Maximum Number of Effects
    4(FX1-4) + 6(DIVIDER+MIXER, SEND RETURN, FOOT VOLUME, NOISE SUPPRESSOR1, NOISE SUPPRESSOR2, GLOBAL EQ)

Memories
    128 (User) + 128 (Preset)

Nominal Input Level
    INPUT L/MONO jack, INPUT R(RETURN) jack: -10 dBu

Maximum Input Level
    INPUT L/MONO jack, INPUT R(RETURN) jack: +7 dBu

Input Impedance
    INPUT L/MONO jack, INPUT R(RETURN) jack: 1 M ohm

Nominal Output Level
    OUTPUT L/MONO jack, OUTPUT R(SEND) jack: -10 dBu

Output Impedance
    OUTPUT L/MONO jack, OUTPUT R(SEND) jack: 1 k ohm

Recommended Load Impedance
    OUTPUT L/MONO jack, OUTPUT R(SEND) jack: 10 k ohms or greater

Controls
    DOWN/1 switch, UP/2 switch,
    MENU/EXIT button, GEAR SUITE button, FX1 button, FX2 button, FX3 button, FX4 button,
    SELECT knob, TYPE/VALUE knob, 1-3 knobs

Display
    Color Graphic LCD (320 x 240 dots)

Connectors
    INPUT L/MONO jack, INPUT R(RETURN) jack, OUTPUT L/MONO jack, OUTPUT R(SEND) jack, : 1/4-inch phone 

type
    MIDI IN jack, MIDI OUT jack : Miniature phone type
    CTL1([3]),2([4])/EXP jack: 1/4-inch TRS phone type
    USB port: USB Type-C(R)
    DC IN jack

Power Supply
    AC adaptor (PSA-S series)

Current Draw
    300 mA

Accessories
    STARTUP GUIDE
    Leaflet "Read Me First"
    AC adaptor: PSA-S series
    Rubber foot x 4

Options (sold separately)
    Footswitch: FS-5U, FS-5L, FS-6, FS-7
    Expression Pedal: FV-500L, FV-500H, EV-30, Roland EV-5
    TRS/MIDI connecting cable: BMIDI-5-35, BMIDI-1-35, BMIDI-2-35, BCC-1-3535, BCC-2-3535

Size and Weight

Width
    117 mm
    4-5/8 inches

Depth
    138 mm
    5-7/16 inches

Height
    (without rubber feet)
    63 mm
    2-1/2 inches

    (including rubber feet)
    65 mm
    2-9/16 inches

Weight
    800g
    1 lb 13 oz