The GR-55 Black from Roland offers three-fold sound generation with two PCM synthesizers (with more than 900 sounds from the newest Roland synthesizer technology) and with COSM guitar/bass/synth/amp modeling (from the VG-99, includes retuning button).
Thanks to intensive research and development, the GR-55 has the absolutely fastest and most secure tone detection for synth sounds, and the modeling sounds are completely free of delay!
Next to infinite sound combinations, the GR-55 continues offer groundbreaking features:
Playback of audio files from a USB stick (controllable with foot switch), two multi-effect processors, 20 second loop, USB interface for audio and MIDI, easy operation with "easy editË function and extra large display.

Please note: A Roland GK-3 or GK-3B MIDI pickup is required to operate the Roland GR-55! (optionally available)

The main features of the GR-55 Black include:

• 3 Sound Engines
• 910 PCM Sounds
• 23 Guitar types
• 17 Bass types
• Multi-effect with 20 Preamps
• 42 Modulation effects
• 14 Delays
• 5 Chorus
• 7 Reverb
• 4 EQ
• LCD Display with EZ Edit
• Built in Phrase Loop
• USB Song Player for WAV and AIFF
• Integrated Audio Interface with MIDI In/Out 24-bit / 44.1 kHz
• USB 2.0 connection to Audio Computer
• Ultra fast Pitch-to-MIDI conversion
• Guitar output jack
• 2x jack outputs 6.3 mm
• 1x headphone output
• Incl. Power adaptor