Roland FR-4x RD V-Accordion - Digital accordion with 37 keys and 120 bass buttons, compact and lightweight, offering the same sound module found in the FR-8X, features a headphone output and line outputs, 100 accordion sound sets (including 67 pre-loaded sets), 162 orchestral sounds, 32 organ sounds, and 3 drum sounds. It includes built-in effects such as Chorus, Reverb, and Rotary, onboard audio recording, quick response and high sensitivity of the bellows, and a resistance regulator for adjusting the inertia of the bellows. It is equipped with a built-in amplification system with 2 speakers and a high tweeter, an LCD screen, and 4 expansion slots for access to additional tone libraries (Balkan and Dallape packages are already installed). It benefits from FR-4x editing software, USB connection, MIDI I/O, USB port for external memory for recording and playback. It is powered by an external power supply or 10 AA batteries.
Technical specifications:
Right hand: 37 keys with velocity sensitivity
Left hand: 120 bass buttons with velocity sensitivity
Bass and chord mode (left hand keyboard layout): 2 rows of bass, 3 rows of A-7th bass, 5 rows of A-5dim bass, 3 rows of B-7th bass, 3 rows of B-5dim bass, 3 rows of Bx-7th bass, 3 rows of Belgium bass
Free bass mode (left hand note layout): Minor 3rd, Bajan, Fifth, North Europe, Finnish
Bellows: with high-resolution pressure sensor, and pressure regulator, with a fine adjustment knob.