Get a complete collection of guitar effects, amp-inspired tones, recording features, and practice tools in one compact floor unit with this Zoom G2.1u Guitar Multi-Effects Processor.

The G2.1u offers 54 effect types, with up to nine effect modules operating simultaneously. Its effects include compression, wah, Zoom Noise Reduction, overdrive and distortion, amp and cabinet simulation, EQ, chorus, flanger, phaser, pitch shifting, delay, reverb, and more. A built-in expression pedal provides real-time control of volume, wah, modulation, delay, and other assignable parameters.

Unlike many basic multi-effects pedals from its era, the G2.1u also includes a USB audio interface, allowing processed guitar signals to be sent directly to a compatible computer for recording. It is equally useful as a compact stage processor, home-practice setup, headphone rig, or desktop recording interface.

This example shows normal cosmetic wear from previous use, including light marks, dust, and surface wear visible in the photographs. The battery cover is present, and the input, output, control, USB, and power connections all appear intact. Please examine the photographs carefully, as they show the actual pedal being offered.

Serial number: 051266
Country of manufacture: China
Approximate production period: Mid-to-late 2000s

The G2.1u was introduced around 2005–2006. Zoom does not publish a dependable serial-number dating chart for this model, so the exact manufacture year of this individual pedal cannot be confirmed from serial number 051266. I would list it as “circa 2006–2009” rather than claiming one exact year.

Features and Specifications

• 54 available effect types
• Up to nine effect modules used simultaneously
• 80 total patch locations
• 40 programmable user patches
• 40 factory preset patches
• Built-in expression pedal with assignable functions
• Amp, cabinet, and microphone simulation
• Compressor, wah, drive, EQ, modulation, delay, and reverb effects
• Zoom Noise Reduction
• Built-in auto-chromatic tuner
• 40 PCM rhythm patterns
• Tap-tempo control
• 96kHz sampling rate
• 24-bit A/D and D/A conversion
• 32-bit internal signal processing
• Frequency response: 20Hz–40kHz
• USB audio-interface functionality
• USB recording: 16-bit stereo at 44.1 or 48kHz
• 1/4-inch mono guitar input
• 1/4-inch stereo output/headphone jack
• Control input for an optional Zoom footswitch or expression pedal
• Runs on four AA batteries
• Approximately 7.5 hours of operation with alkaline batteries
• Accepts a 9V DC, 300mA, center-negative adapter
• Can also receive USB bus power
• Dimensions: approximately 10" × 6.5" × 3.1"
• Weight: approximately 2.4 pounds without batteries

Please note: No power supply, batteries, USB cable, manual, or other accessories are included unless they are specifically shown in the photographs.

The G2.1u remains an affordable and highly versatile processor for players who want plenty of usable sounds without assembling a large pedalboard. It offers an impressive amount of capability for practice, performance, experimentation, and home recording. Zoom’s official manual confirms its 54 effects, 80 patch locations, expression pedal, USB interface, rhythm section, and detailed technical specifications.