Overview
Elevate Your Sound: Introducing the Yamaha B20 TransAcoustic™ Piano
The Yamaha B20 TransAcoustic™ Piano seamlessly merges the rich, authentic experience of an acoustic upright with revolutionary digital control, offering the ultimate flexibility for modern living. This instrument allows you to enjoy the renowned tonal quality of a Yamaha acoustic piano at any volume level, or even play along with your favourite music—all while still using the piano's actual soundboard as a natural speaker. Designed with Yamaha's unwavering commitment to enduring quality, the B20 TransAcoustic™ enriches your home for years, guaranteeing exceptional sound and craftsmanship for both devoted students and experienced musicians.
With a simple touch, you can adjust the volume from a full acoustic performance down to a whisper, or use the TransAcoustic™ technology to layer digital sounds directly through the soundboard. The B20’s medium 116 cm height ensures an enhanced acoustic performance with fuller resonance, while its refined design integrates elegantly into any space. This hybrid piano is an ideal investment for those who seek the expressive power of a pure acoustic instrument combined with the convenience and versatility of cutting-edge technology.
- Integrated TransAcoustic™ system allowing full volume control via the soundboard
- Ability to layer digital voices and play along with music via Bluetooth®
- Medium 116 cm Height for enhanced acoustic resonance
- Rich, authentic acoustic tone with integrated Soft-Close Fallboard
When you order online, you'll also get:
- Free delivery (using our specialist piano movers) within mainland UK*
- Complimentary first tuning (within a few weeks of delivery)
- 5 year guarantee on all acoustic parts
Finance
Bring the dream within easier reach by spreading the cost with V12 Retail Finance. With a range of different finance schemes available, use the Finance Calculator below to choose a deposit amount and find out possible monthly payments.
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Finance agreements are available to UK residents aged 18 or over, subject to status.
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Yamaha Music Europe GmbH (UK) trading as Yamaha Music London is registered in England and Wales BRO14498 at Sherbourne Drive, Tilbrook MK7 8BL. Yamaha Music Europe GmbH (UK) trading as Yamaha Music London acts as a credit broker and offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Yamaha Music Europe GmbH (UK) trading as Yamaha Music London is authorised and regulated by the Financial Conduct Authority. Yamaha Music Europe GmbH (UK) FCA registration number is FRN688040. Credit provided subject to age and status.
V12 Retail Finance is registered in England and Wales with company number 4585692. Registered office: Yorke House, Arleston Way, Solihull, B90 4LH. Authorised and regulated by the Financial Conduct Authority (FCA). V12 Retail Finance's FCA reference number is 679653.
Features
B20 Upright Piano: Your Acoustic Sound Journey
Experience the rich, acoustic piano sound of the B20 upright piano as your fingers touch the keys. This Yamaha piano transforms daily practice into extraordinary moments, offering deep emotional resonance. Ideal for both beginners and experienced players, the B20 helps create lasting musical memories with its pure tone and quality craftsmanship.
Natural Piano Sound Quality and Enduring Reliability
A B20 piano enriches your home for years, providing a pure, articulate tone and expansive resonance that encourages you to play more. We guarantee enduring reliability and uncompromising quality, overseeing every stage of development in-house. All vital components, including the soundboard, frame, and action, are crafted by Yamaha to ensure a consistently excellent piano sound.
The Wide Music Stand
Wide music stand firmly holds large sheet music open in modal window. Extending the full length of the fallboard, the wide music stand makes it easy to place multiple scores – or even long, unfolding sheets – without the need to turn pages. The top surface is deep and finished with non-slip fine artificial leather, providing stability even for thick music scores, so you can focus entirely on your performance.
The Hammer
The hammers, which strike the strings to produce sound, play a crucial role in shaping the piano’s timbre. To achieve a clear, pure tone, the B Series employs a special method in processing the raw felt used in the hammers – a technique derived from our flagship CFX Concert Grand Piano. This process takes full advantage of the inherent superior elasticity of the felt, resulting in a sound that is remarkably clear, richly resonant, and sustained. Every melody and phrase, across all registers, emerges with vivid presence and expression.
The Soundboard
The soundboard is the resonant heart of the piano, and it has been redesigned to achieve a remarkably clear and spacious sound, despite its compact size. This results in a rich bass that supports both the melody and harmonies, creating a beautifully balanced sound where each register can shine. The soundboard features a curved structure known as the “crown,” and even slight changes to its shape can have a significant effect on the resonance of the sound. All B Series models feature five back posts to prevent the crown from changing shape under the strong tension of the strings, ensuring the soundboard maintains the ideal condition for luxurious resonance.
The Action Parts
The complex action mechanism of an upright piano, which transmits key movement to the hammers, is made up of over 60 precision parts for each individual key. To ensure smooth operation – a crucial factor in the instrument’s expressive touch and ability to produce the desired sound – Yamaha manufactures all action components in-house. Each part is precision-processed with extraordinary accuracy to an exacting tolerance of 0.05 millimeters and carefully assembled by our skilled craftsmen, to ensure long-term ease of playing. Even if maintenance is required, part replacement is simple, giving you peace of mind and many years of enjoyment with your piano.
The Frame
A piano’s frame must be able to withstand a total string tension of more than twenty tons. Beyond supporting this immense tension, the frame also has a profound impact on the instrument’s sound. Yamaha manufactures its frames at a dedicated piano frame factory using a "vacuum process" – becoming the first company to employ this technique in crafting some of the finest piano frames. Over this time, we have accumulated extensive knowledge on how factors such as casting temperature, material composition, and even the frame’s coating influence a piano’s acoustic characteristics. This expertise means that Yamaha is able to consistently ensure the reliable quality of every piano we make.
The Soft-Close Fallboard
Soft-close mechanism allows gentle closing of the fallboard open in modal window
Specs
- Cabinet Finish ~ Polished White
- Width ~ 153 cm (5960 1/4")
- Height ~ 116 cm (45 3/4")
- Depth ~ 58 cm (22 3/4")
- Weight ~ 224 kg (493 3/4 lb)
- Number of Keys ~ 88
- Keyboard - Key Surfaces ~ White : Acrylic Resin, Key Surfaces - Black : Phenolic Resin
- Pedal Type ~ Damper/Silencing pedal/Soft
- Hammer Type ~ B Series Special
- Frame ~ V-pro
- Back Post ~ 5
- Key cover - Soft-Close Fallboard ~ Yes
- Castors ~ Single Castor
Sensor System
- Key Sensors - Non-contact continuous detection electromagnetic inductive sensor
- Damper Pedal - Continuous detection sensor
- Soft/Short Pedal - On/Off detection
Silencing System
- Mechanism ~ Hammer shank stopper operated by centre pedal
Voices
- Tone Generation - Piano sound ~ Yamaha CFX, Bösendorfer Imperial
- Tone Generation - Binaural Sampling ~ Yes (CFX, Bösendorfer Imperial)
- Tone Generation - VRM ~ Yes
- Tone Generation - Grand Expression Modelling ~ Yes
- Tone Generation - Key-off Samples ~ Yes
- Tone Generation - Smooth Release ~ Yes
- Polyphony (max.) ~ 256
- Preset - Number of Voices ~ 12
Effects
- Reverb ~- Yes
- Brilliance ~ Yes
- Stereophonic Optimizer ~ Yes (Piano Voices other than CFX Grand and Bosendorfer)
Songs (MIDI)
- Number of Preset Songs ~ 12 Voice Demo Songs, 50 Classics
- Recording - Number of songs ~ 10
- Recording - Number of Tracks ~ 2
- Data Capacity ~ Approx. 500 KB
Format
- Playback ~ SMF (Format 0, Format 1)
- Recording ~ SMF (Format 0)
Recording/Playback (Audio)
- Recording Time (max.) ~ 80 Minutes/Song
- Format - Playback ~ WAV (44.1 kHz, 16 bit, stereo)
- Format - Recording ~ WAV (44.1 kHz, 16 bit stereo)
Functions
- Rhythm Patterns ~ 20
- Metronome ~ Yes
- Tempo Range ~ 5 - 500
- Transpose ~ - 12 - 0 - +12
- Tuning ~ 414.8 - 444.0 - 466.8Hz (approx 0.2 Hz increments)
Control Interface
- Display : 7-Seg
- Bluetooth : Yes (Audio/MIDI) *May not have this functionality depending on your area. Check with your Yamaha dealer
Storage and Connectivity
- Storage - Internal Memory ~ approx. 1.3 MB
- Storage - External Drives ~ USB flash Drive
Connectivity
- Headphones ~ Stereo mini jack (x2)
- AUX IN ~ Stereo mini jack
- USB TO DEVICE ~ Yes
- USB TO HOST ~ Yes
Power Supply
- AC Adaptor ~ PA-500C (or an equivalent recommended by Yamaha)
- Power Consumption ~ 17 W (When using PA-300C AC adaptor)
- Auto Power Off ~ Yes
Accessories
Included Accessories ~ AC adaptor*, Power cord*, Headphone hanger, Attachment screws for headphone hanger. Owner's Manual. * May not be included depending in your area.
Separately Sold Accessories ~ USB wireless LAN adaptor (UD - WL01)
Soundboard Drive System
- Mechanism ~ TransAcoustic™ technolog
