Boss ME50B Bass Guitar Multieffects Pedal

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    Product Description

    Boss realized that many bass players love their amps and may not need the GT-6B amp/speaker modeling. Also, a lot of bass players love easy-to-access, manual mode effects. So... here comes the BOSS ME-50B with world-class bass effects in a rugged floor unit with easy pedal-style control. Effects are divided into six sections (Compressor/Limiter, Master EQ, Filter/Tone, Drive/Synth, Delay/Modulation and Expression Pedal), giving bassists a range of unique and powerful tones including new effects like Sound Hold, Octave Up and Kick Drum - all with easy knob-based control. The modeled compressors are PERFECT for bass; the defretter really sounds like a fretless. The innovative Sound Hold function sustains a low note while playing over it (cool!) and you also have Sound On Sound recording, this time with new Kick Drum effect for keeping time. A handy "Octave Up" effect adds a note one octave above the original while retaining your natural bass sound - complete with adjustable drive on the octave-shifted note. There are tons of synth-like filtered sounds. This is the piece no bass player should be without!


    • Floor-based bass multi-effects processor with easy analog control
    • Killer COSM® Compressor/Limiter and Drive effects, plus T-Wah, Slow Gear and Defretter
    • Innovative Sound Hold function for sustaining a low note while playing on top
    • Sound On Sound recording with new Kick Drum effect for keeping time
    • Dedicated knobs for each effect section - no menu-surfing!
    • Easy Tone effects with Preset EQ templates for quick tone editing
    • 3 footswitches and onboard expression pedal routed to 6 options like Octave, Wah, etc.
    • Solid metal case built to withstand abuse
    Multi-Effects Made Simple
    BOSS understands that bass players want access to powerful effects, but they don’t want to get caught up in the menus and programming hassles of a multi-effects processor. Enter the ME-50B. Just like its guitar-oriented sibling, the new ME-50B puts BOSS' finest multi-effects for bass into a convenient floor processor with the feel of a compact pedal. Forget about menus and cursor buttons. Just reach down and twist a knob!

    Independent COSM Compressor/Limiter and EQ
    Everyone knows that the fundamentals of good bass tone are compression and EQ. That's why the ME-50B features two dedicated sections for these essential effects. The ompressor/Limiter uses advanced COSM modeling - including a "Natural" compression setting that retains the nuances of your playing - to give you tight, punchy tone. Simply select the compressor "Type" and adjust the Sustain/Threshold knob to get the tone you want. The Master section includes a 3-band EQ with a sweepable mid for precise tonal shaping.

    Get Creative with Cool Filter/Tone Effects
    The ME-50B includes a variety of unique tone-shaping effects just for bass. These include a handy “Octave Up” effect, which adds a note one octave above the original while retaining your natural bass sound - complete with adjustable drive on the octave-shifted note - plus favorites like Slow Gear, T-Wah and a Defretter effect for instant fretless sounds. Using the Tone effect preset, you can get quick tonal variations with preset EQs like "Bottom Boost" and "Mid Shape".

    Incredibly Warm Overdriven Sounds and More
    Want some extra bite? Switch on the ME-50B’s Drive effects, which include settings like “Muff Fuzz,” “Bass Driver,” “Natural” and “Metal” to give you a range of overdriven/distorted sounds. A new “Hi Band” effect creates a distorted sound on the high frequencies while keeping the lower frequencies intact - perfect for creating complex tones while keeping your original playing dynamics. There are also four synth bass sounds with superb tracking and natural feel.

    Sound On Sound with a Twist
    Sound On Sound recording is very popular with guitarists, and now bass players can build their own loops, too. But the ME-50B can do even more. Using the new Kick Drum function, players can tap in their own kick drum and create loops over the beat. If that’s not enough, check out the new Sound Hold function, which lets you endlessly sustain a low note while playing over it. With the ME-50B, bassists can take their playing to a whole new level.

    Product Specifications


    • AD Conversion: 24 bit + AF method
    • DA Conversion: 24 bit
    • Sampling Frequency: 44.1 kHz
    • Patches 24 (user)
    • Effects: Compressor / Limiter, Filter / Tone, T. Wah, Octave (Up / Down), Slow Gear, Defretter, Enhancer, Bottom Boost, Mid Shape, Hollow, Drive / Synth, Overdrive / Distortion, Bass Synth, Delay / Modulation, Delay, Phaser, Flanger, Chorus, Reverb, Noise Suppressor, Master EQ, Effects for Expression Pedal, Foot Volume, Wah, Resonance, Voice, Resonance, Bend (+1 OCTAVE, -1 OCTAVE), Sound Hold, Kick Drum
    • Nominal Input Level:
      • INPUT: -10 dBu
      • AUX IN: -10 dBu
    • Input Impedance:
      • INPUT: 1 MOhm
      • AUX IN: 100 kOhms
    • Nominal Output Level: -10 dBu
    • Output Impedance 2 kOhms
    • Display: 7 segments, 1-character LED
    • Connectors: INPUT jack, OUTPUT jacks L (MONO)/R, AUX IN jack (Stereo Mini type), PHONES jack, FOOT SW (COMP ON/OFF, TEMPO), AC Adaptor jack
    • Power Supply: DC 9 V: Dry batteries (R6/LR6 (AA) type) x 6, AC Adaptor (PSA series: Optional)
    • Current Draw: 140 mA
    • Dimensions: 384 (W) x 225 (D) x 78 (H) mm, 15-1/8 (W) x 8-7/8 (D) x 3-1/8 (H) inches, Maximum height: 384 (W) x 225 (D) x 102 (H) mm, 15-1/8 (W) x 8-7/8 (D) x 4-1/16 (H) inches
    • Weight: 3.15 kg / 7 lbs (including batteries)
    • Accessories Owner’s Manual, Dry Batteries (Alkaline: LR6 (AA) type) x 6, Roland Service (Information Sheet)
    • Options: AC Adaptor: BOSS PSA series, Foot Switch: BOSS FS-5U

      * 0 dBu=0.775 Vrms
      * The specifications are subject to change without notice.

    Helpful Info about the Manufacturer
    Phone:  323-890-3700 Warranty:  BOSS Compact and Twin Pedals: 5 years parts, 2 years labor; BOSS (other): 1 year parts, 90 days labor
    Ken L. Jones
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    I love this thing!
    Product Rating
    What is your opinion of this product?
    The Boss ME-50B Multi effects pedal is a must have weapon in today's professional working bassist's arsenal. It eliminates the need for what used to require several moderately expensive pedals and several short patch cords to connect them.. as well as a display case or platform to put them on, and / or. in. The Boss ME-50B has several effects in one small unit.. and the fabulous digital sounds are just barely a few toe taps away. This unit contains a digital recording feature, a digital delay and several reverb effects; an octave adder (1 octave higher or 1 octave lower) as well as a harmonizer, several distortion effects, and much much more. It is well worth the price.. and I will not only recommend it to my musician friends and colleagues.. but I will be the envy of any bassist within earshot of me when I use it.. if they don't already have one of their own. I will definitely purchase a protective case for it as soon as I can afford to. Again.. thank you A.M.S.
    Michael Edwards Sr
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Love this thing
    What is your opinion of this product?
    Really love this. So many sounds it's hard to pick one for your main sound only thing I didn't like was it didn't come with a manual so I had to watch youtube to learn how to use everything.
    Dr. R. Butler
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Another Big Win
    What is your opinion of this product?
    Boss is the "Boss" of guitar effects pedal and I couldn't wait to try out their new pedal for bass and OMG!!! Yes.............
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Loving it!!
    What is your opinion of this product?
    Several different tones available for the different styles I play. More distortion options than I'll ever use. Resonance is perfect for some melodic solo work I've been working on lately. I really love this thing and have only just scratched the surface.
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    I love this thing
    What is your opinion of this product?
    A great item if your looking to make great effects. Easy to use and fun to play with. And most of all it won't hurt your pocket book.
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    it's great
    What is your opinion of this product?
    it meets my needs as a bass player it's a good product.
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    MSRP: $440.50
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