Roland has long been a leader in guitar effects, and the GR-55S-BK guitar synthesizer continues this tradition with advanced features. This multi-effects pedal includes two independent PCM synthesizer processors, each offering up to 900 sounds, which can be used separately or together. The GR-55S-BK utilizes COSM modeling technology to add internal effects to your guitar tone, enabling a wide range of sounds, including piano or bass guitar tones. 

The GR-55S-BK is designed for speed and precision, featuring 270 factory presets and 297 user presets, ensuring you have the right sound for any genre. It also includes MIDI and USB inputs for loading and controlling audio files from your PC, making it easy to access backing tracks. With its intuitive interface and lightning-fast response, the GR-55S-BK is a powerful and versatile tool for any guitarist.

Specifications

• Two PCM synthesizer processors (PCM and modeling) (can be used separately or in parallel)  
• PCM Sounds: 910  
• Modeling Sounds: 23 guitar sounds, 17 bass sounds  
• Multi-effects: 20  
• Preamp Types: 42  
• Modulation Effects: 14 types  
• Delay Effects: 7 types  
• Reverb Effects: 5 types  
• Chorus Effects: 4 types  
• Equalizer: 1 type  
• Preset Memory in Guitar Mode: 270 factory presets + 297 user presets  
• Preset Memory in Bass Mode: 90 factory presets + 297 user presets  
• AD/DA Conversion: 24-bit (GK-3 element)  
• Sample Rate: 44.1 kHz  
• Output Signal: -10 dBu  
• Guitar Output: -10 dBu  
• Output Impedance: 2 kΩ  
• Guitar Output Impedance: 2 kΩ  
• USB: Supports WAV and AIFF files  
• Display: LCD (240 x 64 pixels)