The Boss GX-1B is a compact bass guitar effects processor designed for players who demand professional-grade sound shaping on a budget. Featuring an intuitive interface and Boss's trusted reverb, delay, and modulation effects, this pedal delivers studio-quality tones in a pedalboard-friendly format.

With 99 user patches and real-time control knobs, you can customize your sound instantly during performance or practice. The dual footswitches allow hands-free navigation, while the built-in expression pedal adds dynamic control to your effects in real time.

Perfect for bassists looking to expand their sonic palette without cluttering their board, the GX-1B integrates seamlessly into any setup. Powered by a 9V DC adapter (sold separately), it's ready to transform your bass tone.

Compact bass FX processor pedal with premium BOSS sound and features
Intuitive top-panel layout with high-resolution color display and effect category buttons
Authentic tube amp tone and response, powered by AIRD technology
Excellent audio quality with 24-bit AD, 32-bit DA conversion, 48kHz sampling rate, 32-bit floating-point processing, and onboard noise suppression
Loaded with 16 amp types and 130+ BOSS FX; 8 concurrent FX blocks
Gear Suite lets you quickly configure amp and effect combinations with a single knob
99 ready-to-rock preset memories and 99 user memories for storing custom patches
3 footswitches and volume/expression pedal with toe switch (both assignable)
Onboard Bluetooth lets you play along with music streamed from mobile devices
USB-C port for recording with DAW software on your computer or mobile device
Compatible with BOSS Tone Studio app (macOS/Windows/iOS/Android)
Download and share Livesets on BOSS Tone Exchange
Support for loading WAV speaker IRs
Expansion jack for additional footswitch or expression pedal
Supports optional FS-1-WL wireless footswitch and EV-1-WL wireless expression pedal
1/4-in. input, L/R output jacks, and external pedal input; 3.5mm TRS headphone jack
Powered via 3 AA batteries, AC adapter, or USB (computer bus power or mobile battery)
Compact, lightweight chassis easily fits in the pocket of your gig bag

Boss GX-1B Bass Guitar Effects Processor Pedal / 9V DC power supply (sold separately)