The GT-1B Bass Multi-Effects Processor 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.


• Premium BOSS sound engine specially tuned for bass
• Pro-level amps and effects in a light, compact floor unit
• Essential tools on board for optimizing your core bass tone
• Includes advanced MDP effects for maximum musical expression
• Modern design with no hard edges enables safe transport in an instrument bag
• Easy Select and Easy Edit functions for quickly choosing and tweaking patches
• Four AA batteries provide approximately seven hours of mobile playing time
• Onboard control switch and expression pedal; footswitch/expression pedal jack and USB
• Download pro patches and editor software for free at BOSS Tone Central


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
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.

INCLUDED 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

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