GR-55

The Roland GR-55 is a guitar synthesizer that offers a range of features and specifications for musicians and sound enthusiasts. Here are the technical specifications for the GR-55:

Sound Generator:
- PCM: 2 tones
- Modeling: 1 tone
- Tones:
- PCM: 910 types
- Modeling: 23 types (guitar mode), 17 types (bass mode)

Effects:
- MFX (Multi-Effects): 20 types
- AMP (Preamp): 42 types
- MOD (Modulation): 14 types
- DELAY: 7 types
- REVERB: 5 types
- CHORUS: 4 types
- EQ: 1 type

Patch Memory:
- Guitar mode: Preset 270 + User 297
- Bass mode: Preset 90 + User 297

AD Conversion:
- 24-bit (GK Pickup)
- 24-bit + AF method ** (Normal Pickup)

DA Conversion:
- 24-bit

Sampling Frequency:
- 44.1 kHz

Nominal Output Level:
- OUTPUT jacks: -10 dBu
- GUITAR OUT jack: -10 dBu

Output Impedance:
- OUTPUT jacks: 2 k ohms
- GUITAR OUT jack: 2 k ohms

USB Memory Audio Player:
- File Format: WAV, AIFF

Display:
- Graphic LCD 240 x 64 dots

Connectors:
- GK IN connector (13 pins DIN type)
- GUITAR OUT jack (1/4-inch phone type)
- OUTPUT L/MONO, R jacks (1/4-inch phone type)
- PHONES jack (Stereo 1/4-inch phone type)
- MIDI connectors (IN, OUT) (5-pin DIN type)
- USB COMPUTER connector (supports Hi-Speed USB, USB MIDI and USB Audio)
- USB MEMORY connector (supports Hi-Speed USB Flash Memory)
- DC IN jack

Power Supply:
- DC 9 V
- Current Draw: 700 mA

Accessories:
- AC adaptor
- Owner's manual
- Divided pickup - GK-3 (only for GK included model)
- GK cable (5 m) (only for GK included model)

Options (sold separately):
- Divided pickup: GK-3 (for guitar), GK-3B (for bass guitar)
- GK cable: GKC-5 (5 m), GKC-10 (10 m)
- MIDI foot controller: FC-300
- Unit selector: US-20

Size and Weight:
- Width: 405 mm (16 inches)
- Depth: 244 mm (9-5/8 inches)
- Height: 78 mm (3-1/8 inches)
- Weight: 3.3 kg (7 lbs. 5 oz. )
- Maximum height: 106 mm (4-3/16 inches) when the expression pedal is moved to the minimum

• 0 dBu = 0.775 Vrms
  ** AF (Adaptive Focus) method is a proprietary method from Roland