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Boss GT-1B Bass Effects Processor

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Product Description

A must have for any gigging bassist

The Boss GT-1B Bass Effects Processor is equipped with Boss's most advanced sound engine to date and is specifically designed for bassists. Packed with top-of-the-line sound tools, players can easily tailor their sound at the touch of a button. This versatile effects processor is equipped with a wide variety of preamps, along with effects such as a limiter, distortion and an expression pedal. What's more, players also have access to a graphic EQ, looper and T-Wah, as well as impact effects including a Harmonist, Bass Synth, Defretter and many more.

Portable, compact & easy-to-use

The Boss GT-1B Bass Effects Processor is ideal for bassists on the move, as it has the ability to be powered entirely by battery. Its compact and lightweight design structure will fit easily into any gig bag so that you can take it with you wherever you go. The intuitive interface features easy select and easy edit functions which allow you to quickly choose and tweak your patches, it also lights up when it is engaged to help you perform in low-light stage settings.

When you invest in a Boss product, you know that you're getting a premium grade pedal that has engineered with passion and care - and the GT-1B is no different. Housed in a compact and robust chassis, it's designed to withstand all the trials of life on the road.

Boss Tone Central

The Boss GT-1B Bass Effects Processor is not only fully loaded with a range of onboard effects and sounds, but you can also benefit from downloading the free patch collections via the Boss Tone Central. Each patch has been especially programmed by top bassists all over the world, and can be instantly dialled in. This online facility provides a fully featured editor for the Boss Bass Effects Processor, and allows you to add even more flavour to your performances.



  • Sampling Frequency: 44.1 kHz
  • AD Conversion: 24 bits + AF Method
  • DA Conversion: 24 Bits
  • Effects: 90 Types
  • Patches: 99 (User) + 99 (Preset)
  • Phrase Loop: 32 Sec
  • Display: Graphic LCD (132 x 32 Dots, Backlit LCD)
  • Accessories: Owner's Manual, Leaflet "USING THE UNIT SAFELY", Alkaline Battery (AA, LR6) x 4


  • Input/Output Jacks: 1/4'' Phone Type
  • Nominal Input Level:
    • Input: -10 dBu
    • Aux In: -20 dBu
  • Maximum Input Level:
    • Input: +7 dBu
    • Aux In: 0 dBu
  • Input Impedance:
    • Input: 1 M Ohm
    • Aux In: 27 k Ohms
  • Nominal Output Level:
    • Output (L/Mono, R): -10 dBu
    • Phones: -10 dBu
  • Output Impedance:
    • Output (L/Mono, R): 1 k Ohm
    • Phones: 44 Ohms
  • Recommended Load Impedance:
    • Output (L/Mono, R): 10 k ohms or Greater
    • Phones: 44 ohms or Greater
  • CTL2, 3/EXP2 Jack: 1/4'' TRS Phone Type
  • Aux In Jack: Stereo Miniature Phone Type
  • USB Computer Port: USB Type B

Power Requirements

  • Power Supply: Alkaline Battery (AA, LR6) x 4, AC Adaptor (Sold Separately)
  • Current Draw: 200 mA
  • Expected Battery Life: Approx. 7 Hours (* These Figures Will Vary Depending on the Actual Conditions of use)


  • Width: 305 mm (12.0625'')
  • Depth: 152 mm (6'')
  • Height: 56 mm (2.25'')
  • Maximum Height: 74 mm (2.9375'')
  • Weight (Including Battery): 1.3 kg (2lbs 14oz)

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