Roland FR-4x Red

Digital Accordions | Product code: FR-4X-RD | ID: 235161



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Estimated delivery 2019-09-02

Roland FR-4x Red

Digital V-Accordion with 37 keys and 120 left-hand buttons, light and compact design with red finish, responsive pressure-sensing bellows, and full-range onboard speakers. The accordion features the powerful sound engine as Roland’s flagship FR-8x and enables you to choose from a selection of 100 accordion sound sets (including 67 pre-loaded sets), 162 orchestral sounds, 32 organ sounds, 3 drum sounds, built-in chorus, reverb, and rotary effects and opportunity to play in silence using headphones or connect to a PA for live performance. Control other electronic musical instruments via the MIDI connector, or record your playing to a connected USB stick and share your music with the world. The device is powered by an AC adaptor or 10 AA batteries.



Right hand

37 keys (with velocity sensitivity)

Left hand

120 bass buttons (with velocity sensitivity)

Bass & Chord Mode (Left-Hand Keyboard Note Layout)

2 Bass Rows, 3 Bass Rows A-7th, 3 Bass Rows A-5dim, 3 Bass Rows B-7th, 3 Bass Rows B-5dim, 3 Bass Rows Bx-7th, 3 Bass Rows Belgium

Free Bass Mode (Left-Hand Keyboard Note Layout)

Minor 3rd, Bajan, Fifth, North Europe, Finnish


High-resolution pressure sensor for the detection of bellows pressure
Bellows resistance regulator: wheel with fine adjustment

Bellows curve

Fixed Low, Fixed Med, Fixed High, X-Light, Light, Standard, Heavy, X-Heavy, Close, Open, Tango, Traditional, Jazz, Classic, Dynamic1, Dynamic2



128 voices

Tones (Accordion Set)

100 Accordion Sets
Each Accordion Set includes (number of sounds that can be assigned to the register buttons):
Right Hand Registers: 14 Accordion registers, 14 Orchestra registers, 14 Organ registers
Left Hand Registers: 7 Bass & Chord registers, 7 Free Bass registers,
7 Orchestra Bass registers, 7 Orchestra Chord registers, 7 Orchestra Free Bass registers

Reed Footages

7 Treble, 5 Bass, 3 Chord, 2 Free Bass

Orchestral sounds

* Orchestral sounds can also be used with orchestral bass sounds, orchestral chord sounds, and orchestral free bass sounds.

Organ sounds (Virtual Tone Wheel)

32 presets for Treble, Orchestra Chord and Orchestra Free Bass sections,
16 presets for Orchestra Bass section

Drum Sets


User Programs

98: 7 User Program Bank x 14 registers



Stopping-reed growl, Closing valve noise, Left button noise

Individual Reed Simulation

Hysteresis Threshold, Expression Curve, Pressure-Variant Filter, Pressure-Variant Pitch Deviation

Switching Reed Sound Wave

By bellows acceleration, by note repetition speed

Bellows opening/closing sound change

By bellows opening/closing detection


Micro-Tuning Presets

16 Types: Off, Dry, Classic, F-Folk, American L/H, North Europe, German L/H, D-Folk L/H, Alpine, Italian L/H, French, Scottish

Fine Tuning reed footages 8- / 8+

-100 to 0 to +100



8 types
* Includes delay type.


8 types
* Includes delay type.

Rotary for Organ sound


"Cassotto" simulation


4 Band EQ for Internal Speakers



Knob controls & Registers

Volume, Balance, Reverb, Chorus,
Right hand register buttons 7 x 2
* Use the A/B button to switch between sounds assigned to the register buttons.
Left hand register buttons 7

Navigation switches

Menu/Write, Exit/No, Enter/Yes, Cursor , Value -/+ (Set Down/Up)

Other switches

Right Hand Parts switches (Accordion, Orchestra, Organ)
Left Hand Parts switches (Drums, Orch Bass, Orch Chrd/F.Bass, F.Bass, Bass&Chrd)
User Program, Song List, Play/Pause, Rec, Power

Additional switches

6 user assignable function switches on last row of bass buttons


Right Hand Keyboard Mode

Layer (Zone), High, Low

Octave Shift

-3, 0, +3 for Orchestra
This setting can be saved individually for each set.
-1, 0, +1 for Treble, Orchestra, Organ (Right hand)
This setting can be saved individually for each user program.

Orchestra Chord Guitar Mode

Gtr Table1, Gtr Table2, Gtr Table3

Sound Edit

* The dedicated editor allows full editing.

Bass to Treble


Part Mute

Accordion, Orchestra, Organ, Bass&Chord, Free Bass, Orch Bass, Orch Chord, Orch Free Bass

Bass & Chord with drum/percussion sounds

Programmable drum/percussion sounds for Bass/Orch Bass rows, Chord/Orchestra Chord rows.

Audio Player and Audio REC

MP3/WAV file playback from a USB flash drive, WAV file recording to a USB flash drive

Speakers On/Off


Left-hand Button Keyboard Layer




Custom LCD (8 characters + 16 segments x 4)

Rated Power Output

2 x 11 W


2 x 10 cm
1 x Tweeter

Wave Expansion

4 internal areas (8 MB each) to load new sounds
* When shipped from the factory, sounds are pre-installed in two areas.

Power supply

AC adaptor
Batteries (AA-type rechargeable Ni-MH x 10)
* Expected battery life under continuous use: 5 hours speaker ON mode, 9 hours speaker OFF mode

Current Draw

2,000 mA

Onboard connectors

OUTPUT jacks L/Mono (Treble), R/Mono (Bass): 1/4" phone type
PHONES jack: Stereo 1/4" phone type
INPUT jack: Stereo miniature phone type
MIDI (IN or OUT) connectors
USB COMPUTER port (USB Hi-Speed MIDI support)
(Use a USB cable and a USB port on your computer that supports Hi-Speed USB.)
DC IN jack


AC Adaptor
Power cord (for connecting the AC adaptor)
Owner's Manual
Reference caps for the bass buttons
Accordion cover
Attachment strip

Option (sold separately)

USB Flash memory
Soft case for accordion (BAG-FR-3)
MIDI foot controller (FC-300)



481 mm
18-15/16 inches


270 mm
10-11/16 inches


430 mm
16-15/16 inches


8.9 kg
19 lbs. 10 oz.
(Without straps and batteries)


Parameters and specifications

UK/EU Power supply included


Made in


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