Your shopping basket contains 0 item
Other EU Countries
Save 134.00€Ref.: 229689

roland FR-4XB BK

Online : Sold out.
View similar available items
Shipping: free
This item is warranted for 3 years
PayPal Checkout

Payment with Paypal Express is fast and secure.

We send you the item(s) to the address entered in your Paypal account. You can modify this on the PayPal page if necessary. By default, the selected delivery is the standard delivery mode. If the delivery country entered on Paypal is not identical to that of your Woodbrass account, the shipping costs and prices may be different.

PayPal Checkout
Woodbrass price
Public Price
Register here and stay informed about the next restock


Hamamatsu, Japan, September 10, 2016 — Roland announces the FR-4x (piano type) and FR-4xb (button type) V-Accordions, the latest additions to the acclaimed V-Accordion lineup. Each of these compact and lightweight instruments feature a sound engine derived from the flagship FR-8x, which provides a wide range of traditional accordion sounds, orchestral voices, organs, and onboard drum sounds. The FR-4x and FR-4xb also include many other noted V-Accordion features, including authentic playability with pressure-sensing bellows, sound expansion capability, built-in speakers, battery operation, USB song playback, and much more.

With tradition in mind, the FR-4x and FR-4xb are manufactured in Castelfidardo, Italy, a town noted as the international capital of accordion builders. The FR-4x is equipped with 37 right-hand keys, while the FR-4x has 92 right-hand buttons. Both models are also equipped with 120 left-hand buttons. The bellows’ pressure-sensing circuitry ensures fast response and high sensitivity, and an adjustable resistance regulator allows the user to adjust the inertia to their preference.

The FR-4x and FR-4xb include a full selection of traditional accordion sounds from around the globe. Also on hand are 162 orchestra sounds and 3 drum sets, plus 32 world-class organs. Four expansion slots allow users to load additional tone libraries, and Balkan and Dallape accordion expansions come pre-installed. Both models also include built-in chorus, reverb, and rotary effects to enhance sounds.

Both the FR-4x and FR-4xb feature a powerful onboard audio system with two speakers and a tweeter, which supplies big, full-range sound for intimate performances and strolling gigs. And by plugging in headphones, users can practice quietly without disturbing family members and neighbors. The instruments can be powered via an included AC adapter, or with 10 AA batteries for on-the-go convenience.

Both models offer line out jacks for a direct connection to a PA or recorder, eliminating the hassles associated with using microphones on a traditional acoustic accordion. The instruments also include MIDI for connecting to external devices like the Roland BK-7m Backing Module and FC-300 MIDI Foot Controller.

The FR-4x and FR-4xb feature USB connectivity as well. By inserting a USB stick preloaded with favorite songs or practice material, users can jam along with the music as it plays back. There’s a handy onboard recorder for capturing performances, which can then be transferred to a USB stick for sharing with others. USB also enables users to archive favorite settings and connect with the free FR-4x Editor software on a computer.

To learn more about the FR-4x and FR-4xb V-Accordions, visit

[Keyboard, Bass & Bellows]
- Right hand
92 buttons (with velocity sensitivity)

- Left hand
120 bass buttons (with velocity sensitivity)

- Treble Mode (Right-Hand Keyboard Note Layout)
C Griff Europe, C Griff 2, B Griff Bajan, C Griff Fin, D Griff 1, D Griff 2

- 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

- Bellows
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

[Sound source]
- Max polyphony
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

[PBM (Physical Behavior Modeling)]
- Noises
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

[Musette Tuning]
- 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

- Reverb
8 types
* Includes delay type.

- Chorus
8 types
* Includes delay type.

- Rotary for Organ sound

Brand reference number:FR-4XB BK
Quality / price
Similar items
Related Accessories
Sales & Advice
Call Center
kevin_c - laura_h
Contact Kevin: International +33 2 57 88 00 74
Monday to Friday from 9am to 7pm
Saturday from 10am to 6pm.