BOSS GT-1B Bass Effects Processor

BOSS GT-1B Bass Effects Processor – Ultra-Compact Professional Bass Multi-Effects

The BOSS GT-1B Bass Effects Processor is a premium multi-effects unit designed specifically for bass players who need professional-grade tone shaping in a lightweight, portable format. Powered by BOSS’s advanced bass-optimized engine, it delivers a wide range of amp models and effects tailored for low-end clarity, dynamic response, and modern performance needs.

Dedicated Bass-Optimized Sound Engine

Unlike general-purpose processors, the GT-1B is engineered exclusively for bass guitar. Its processing engine is tuned to preserve low-frequency definition while maintaining punch, articulation, and natural dynamics across all playing styles.

• Custom bass-focused BOSS sound engine
• Wide-range bass amp modeling for studio and stage use
• High-resolution effects designed for low-frequency clarity
• MDP-based intelligent processing for enhanced response

Comprehensive Effects and Tone Library

The GT-1B provides a complete toolkit of essential and creative bass effects, allowing players to shape everything from clean foundational tones to aggressive modern textures and experimental sound design.

• Compression, EQ, overdrive, distortion, and preamp models
• Modulation, delay, and reverb effects optimized for bass
• Harmonist, bass synth, and defretter-style tone shaping
• Looper function for practice, composition, and live performance

Intuitive Control and Fast Editing Workflow

Designed for simplicity and speed, the GT-1B features an intuitive interface that allows quick patch selection and easy sound editing without deep menu navigation. This makes it ideal for both beginners and working musicians.

• EASY SELECT for fast sound browsing
• EASY EDIT for quick parameter adjustment
• Dedicated knobs for real-time control
• Onboard footswitches and expression pedal support

Portable Design for Stage and Street Performance

The GT-1B is built for mobility, making it suitable for rehearsals, live gigs, street performance, and travel. Its lightweight construction and battery operation make it a practical all-in-one bass rig solution.

• Compact, lightweight floor processor design
• Battery-powered operation for mobile use
• Rugged chassis for stage reliability
• Ergonomic edge design for safe transport

Connectivity and Expansion

The unit includes flexible connectivity options for practice, recording, and live setups, along with integration into BOSS’s software ecosystem for deeper editing and patch management.

• USB connectivity for recording and editing
• External footswitch and expression pedal inputs
• Headphone output for silent practice
• Aux input for jamming with external audio sources

Preset System and Online Content

The GT-1B includes a large library of onboard patches and access to downloadable professional presets, allowing users to expand their tonal palette quickly.

• 99 user patches and 99 preset patches
• BOSS Tone Central support for downloadable sounds
• Community patch sharing via BOSS Tone Exchange
• Ready-to-use professional bass tones

Key Specifications

• Sampling rate: 44.1 kHz
• AD conversion: 24-bit + AF method
• DA conversion: 24-bit
• Effects: 90 types
• Memory: 99 user + 99 preset patches
• Power: 4 × AA batteries or PSA-series adapter
• Battery life: Approx. 7 hours (alkaline)
• Weight: Approx. 1.3 kg

Ideal For

The BOSS GT-1B is ideal for bassists who need a compact yet powerful multi-effects solution for live performance, studio recording, and practice. It is especially suited for players who want professional bass tone shaping without carrying a large or complex rig.