HK Higher Knowing, LLC
Large 440Hz 36-Note Three Octave C3-C6 Thetazen Shruti Box
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Large 440Hz 36-Note Three Octave C3-C6 Thetazen Shruti Box with Carry Case
• Size: 16.25" x 12.5" x 3.5"
• Average weight: 3980g
• Scale: Third, Fourth, and Fifth Octave 36-Note C3-C6
• Includes: Carrying Case
This is the flagship three-octave model in our Thetazen Shruti Box lineup, tuned to 440Hz with a full 36-note range spanning three octaves from C3 to C6 (covering the complete chromatic scale across all three octaves). The extended range delivers the broadest tonal palette available in a shruti box, giving the player room to build deep grounding drones in the lower octave, supportive mid-range chord beds, and bright carrying tones in the upper octave, all from a single instrument. This makes the three-octave box the natural choice for serious practitioners, professional sound therapists, working musicians, and recording artists who need a single drone instrument capable of supporting any vocal range, any key, and any layered harmonic arrangement. It excels in studio work where the drone needs to sit in specific frequency pockets, in ensemble settings where multiple vocalists or instruments require different anchor tones, in advanced sound therapy sessions where the practitioner shifts between octaves to work different energy centers, and in any kirtan or devotional setting where the music moves freely through changing keys. The larger body also delivers exceptional resonance and bellows capacity, with strong projection that carries through large rooms, group sessions, and live performance settings without losing presence. Crafted from solid teak with metal corner reinforcements and a polished finish, the box is built to hold its tone and travel well for years of regular use.
The shruti box has its roots in the classical music traditions of India, where it evolved as a portable hand-pumped reed instrument designed to hold a steady drone behind vocalists and other musicians. Its name comes from the Sanskrit word shruti, meaning "that which is heard," a term that in Indian musical theory refers to the smallest perceptible interval of pitch and to the foundational tones around which raga melodies are built. Historically, the shruti box replaced the older tanpura in many traveling settings, since it offered the same continuous drone in a far more compact and durable form. Today the instrument is used well beyond its classical origins, finding a place in sound therapy, meditation, kirtan and devotional singing, yoga and chanting practice, songwriting, and any setting where a sustained, breathing drone is needed to anchor voice or melody.
Please note that the Thetazen Shruti Box is handcrafted from solid wood by skilled artisans, and small variations from instrument to instrument are a natural part of that process.
