Boss GT-1B Bass Multi-Effect (2025) - Silver

Premium Bass Tone in an Ultra-Compact Package The GT-1B gives bass players a massive range of pro tone-shaping power in a small and robust package. Backed by BOSS’s premium sound engine, you have full access to a huge selection of bass-optimized amps and effects for stage and studio playing. The streamlined interface lets you dial in sounds fast, while the onboard control switch and expression pedal enable you to adjust multiple effects in real time. And by connecting to BOSS TONE CENTRAL, you can download new patches, editing software, and more. Compact, rugged, and battery powered, the GT-1B is the ultimate mobile tone companion for every bassist. Specifications Sampling Frequency: 44.1 kHz AD Conversion: 24 bits + AF method AF method (Adaptive Focus method) is a proprietary method from Roland & BOSS that vastly improves the signal-to-noise (SN) ratio of the AD and DA converters. DA Conversion: 24 bits Effects: 90 types Patches: 99 (User) + 99 (Preset) Phrase Loop: 32 sec. 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 Controls DOWN switch, UP switch, CTL1 switch EASY SELECT button, EASY EDIT button, FX1/LIMITER button, OD/DS button, PREAMP button, FX2/MOD button, DELAY button, REVERB button, MEMORY EDIT button, EXIT button, ENTER button, MENU button 1 knob, 2 knob, 3 knob Expression pedal Display Graphic LCD (132 x 32 dots, backlit LCD) Connectors INPUT jack, OUTPUT (L/MONO, R) jacks: 1/4-inch phone type CTL2, 3/EXP2 jack: 1/4-inch TRS phone type AUX IN jack: Stereo miniature phone type PHONES jack: Stereo miniature phone type USB COMPUTER port: USB type B DC IN jack Power Supply Alkaline battery (AA, LR6) x 4, AC adaptor (sold separately) Current Draw: 200 mA Expected battery life under continuous use: Alkaline: Approx. 7 hours These figures will vary depending on the actual conditions of use. Accessories Owner's manual Leaflet "USING THE UNIT SAFELY" Alkaline battery (AA, LR6) x 4 Options (sold separately) AC adaptor: PSA series Footswitch: FS-5U, FS-5L, FS-6, FS-7 Expression Pedal: FV-500L, FV-500H, EV-30, Roland EV-5 Carrying Case: CB-BM-S Size and Weight Width: 305 mm (12-1/16 inches) Depth: 152 mm (6 inches) Height: 56 mm (2-1/4 inches) Maximum height: 74 mm (2-15/16 inches) Weight (including battery): 1.3 kg (2 lbs 14 oz)