Technical Specifications
BinaSwar instruments are constructed with the finest details. Explore the specifications of our bellows, woods, scale options, and couplers.
Air Compression System
Bellows Options
Bellows are collapsible cardboard enclosures that pump air into the reed banks to produce rich acoustics. We offer four distinct bellow configurations.
Single Bellow
Provides standard air supply for basic performance settings and easy playability.
Double Bellows
Enables a smoother, more continuous airflow with dual-directional pumping.
Triple Bellows
Triple-folds provide higher capacity for sustained, deep harmonic playing.
Multifold Bellows
Our premium selection. Offers maximum air control, sensitivity, and resonance volume.
Resonance Chamber Materia
Wood Selection
Only the best of seasoned woods are selected for our harmoniums, giving them the rich, warm tonal quality we are famous for.
Mahogany
Mahogany is a dense hardwood that yields a deep, warm, and highly resonant sound. Perfect for professional stage performances and classical recordings.
Pine
Pine is a lightweight softwood that offers clear, bright, and vibrant tones. Ideal for portable models and acoustic accompaniment where portability is key.
Key Transposition System
Scale Change Variations
Our scale changer harmoniums feature keyboards mounted on a sliding base, enabling players to shift scales smoothly without changing their finger shapes.
9 Scales Changer
Provides transposition range allowing up to 9 shifts. Available in Model Nos. 31 and 32.
11 Scales Changer
Provides transposition range allowing up to 11 shifts. Available in Model Nos. 31 and 32.
13 Scales Changer
Provides transposition range allowing up to 13 shifts. Available in Model Nos. 31 and 32.
Dual Key Action
Coupler Facility
Our coupler mechanism enables a key pressed in one octave to automatically trigger the corresponding key in the adjacent octave, providing massive choral resonance.
Front Control Stops
Scale Changers control the coupler system via the front panel stop. Pressed in to engage (ON), pulled out to disengage (OFF).
Rear Rod Linkages
Coupler facility is optional and custom-fitted in every model on request. It operates on physical rod connections under the keyboard.
Comprehensive Manual
Every single BINA Harmonium comes accompanied by an operations manual detailing handling, parts description, and maintenance advice.
View Instruction ManualTechnical Specifications Note
* and **: Model Nos. 31 and 32 are available in 9, 11 and 13 Scales options.
***: Double reed Harmoniums are fitted with Bass and Male reeds by default. They can also be fitted with Male-Male combination reeds on request.