Boss GX-1B Bass Effects Processor

FEATURES

• Ultra-portable amp/effects processor for bass with premium BOSS sound and features
• Authentic tube amplifier tone and touch response with AIRD technology
• Straightforward operation with a color display and intuitive effect category buttons
• Exceptional audio quality with 24-bit AD and 32-bit DA conversion, 32-bit floating-point processing, and 48 kHz sampling rate
• Explore 16 amplifier types and over 130 BOSS effects
• Eight simultaneous effect blocks plus volume pedal and noise suppression
• Gear Suite feature allows you to quickly configure each amp and effect with the turn of a knob
• Includes 99 ready-to-play preset memories and 99 user memories for storing custom sounds
• Three footswitches and an expression pedal with toe switch, all freely assignable
• Play along with songs from your mobile device via onboard Bluetooth®
• Record and play tracks in music production software on a computer or mobile device* via a USB-C

DESCRIPTION

The BOSS GX-1B delivers professional-grade sound in an ultra-portable platform built for bass players who demand versatility without compromise. Whether you're practicing at home, recording in the studio, or performing on the road, this compact powerhouse offers premium tones, intuitive controls, and deep editing features—all tailored to the low end.

At the heart of the GX-1B lies AIRD technology, delivering the feel and response of real tube amplifiers with the clarity and punch needed for bass. Shape your sound with 16 expressive amp models and 135 BOSS effects, using up to eight simultaneous effect blocks plus volume pedal and noise suppression. The unique Gear Suite function lets you dial in pro-level tones instantly, with factory-curated setups for amps and effects you can tweak and save as personalized favorites.

The bright color display and hex-shaped effect buttons offer a seamless, frustration-free interface for sound creation. Switch presets, build patches, and access deep parameters with ease. With 99 user memories, 99 ready-to-play presets, and real-time foot control, your creativity stays front and center.

Play along with your favorite tracks via Bluetooth® audio, or connect to your computer or mobile device through USB-C® for direct recording and playback. The BOSS Tone Studio app opens the door to even deeper sound customization and interactive practice tools—like Session mode for YouTube play-alongs, AB repeat, speed control, rhythms, metronome, and more.

Whether you're a beginner chasing big tone or a pro seeking an all-in-one travel rig, the GX-1B is your ultimate bass companion—compact, powerful, and always ready to perform.

SPECIFICATIONS

• Sampling Frequency: 48 kHz
• AD Conversion: 24 bits + AF method (Adaptive Focus, proprietary Roland/BOSS S/N enhancement)
• DA Conversion: 32 bits
• Processing: 32-bit floating point
• Effects: 135 types
• Memories: 99 User + 99 Preset
• Phrase Loop: 38 sec. (Mono) / 19 sec. (Stereo)
• Tuner Detection Range: ±0.1 cent
• Control: DOWN/UP/CTL1 switches, EXP1 switch and pedal, MENU, EXIT, ENTER, and edit buttons, 1–3 parameter knobs, FX1–FX3, AMP/CAB, OD/DS, DELAY, REVERB, PEDAL FX buttons, EDIT and navigation controls
• Display: Color Graphic LCD (320 × 240 dots)
• Connectors: INPUT jack: 1/4" phone type, OUTPUT (L/MONO, R): 1/4" phone type, PHONES jack: 1/8" stereo mini, CTL2,3/EXP2 jack: 1/4" TRS phone type, USB COMPUTER port: USB-C®, DC IN jack
• Power Supply: 4x AA batteries (included) - USB Bus Power - AC adaptor (sold separately)
• Battery Life (Approx.): 5hrs (varies by usage)
• Dimension: 12-1/8 × 5-7/8 × 2-1/4 inches
• Weight: 2lbs 11oz