8-10" 2-Note 440Hz Clear Quartz Crystal Singing Bowl Set Crystal Vibes #ccset-006
Pure interval. Layered harmony.
This two-bowl 440hz set brings together a 4th octave C (263.6 Hz) and 4th octave E (334 Hz), forming a classic major third relationship—one of the most naturally consonant intervals in Western harmony.
Because both bowls share the same octave, the sound feels cohesive and centered. The C offers a steady tonal foundation, while the E introduces warmth and lift. When played together, the tones blend into a unified harmonic color—often giving the subtle impression of a full chord within a very simple configuration.
The interaction is stable and luminous, with a gentle bloom that arises when the tones are sustained together.
Use in Practice
This set can be approached with simplicity.
You may work with a single tone to establish a sense of ground, or introduce the second bowl to gently open the field. In one-to-one or group settings, the pairing can be used to create a consistent and supportive tonal environment without drawing attention to complexity.
In practice, this set may support:
- establishing a stable tonal field at the beginning of a session
- supporting transitions between phases of stillness and engagement
- working with a consistent harmonic reference in group settings
- holding a clear, unified tone while moving through space
Material and Sound
Clear quartz is known for its purity of tone and long sustain. These bowls produce a clean, crystalline sound with strong projection and harmonic richness, making them suitable for both personal practice and professional sound therapy environments.
Additional Details
10" C — 4th octave (263.6 Hz)
8" E — 4th octave (334 Hz)
Includes o-rings and mallet accessory pack
*Cent values are rounded to the nearest 5 cents.
For safety, portability, and proper storage, we highly recommend our Sunreed Special Nesting Bowl Cases, offered at a discount when purchased with your set.
Each case includes:
- High-quality purple fabric
- Durable stitching
- Two custom foam inserts
- Capacity to store multiple bowls safely
Suggested Nesting Configurations
- 14" Case — 14" Bowl + 8" Bowl
- 14" Case — 14" Bowl + 11" Bowl
- 14" Case — 13" Bowl + 9" Bowl
- 12" Case — 12" Bowl + 10" Bowl + 8" Bowl
These cases protect your investment and simplify travel and storage.
As part of your purchase, you will receive complimentary access to a Sunreed™ micro-course created specifically for your instrument category.
- Access instructions will arrive with your order confirmation email.
Each course includes foundational teachings, listening practices, care guidance, archived instructional recordings, and practical guidance for working with your instrument, as well as access to our Heart of Sunreed™ online community.
Every micro-course also includes one or more complete lessons drawn directly from our Foundations of Sound Healing™ training program, offering access to teachings from our more comprehensive educational curriculum.
Additional lessons, recordings, and guidance may be added over time.
At Sunreed™, we take great care in preparing each instrument before it leaves our shop. Many of the instruments we offer are handmade or individually selected, and each one is carefully inspected, listened to, and packed so it arrives safely and ready for practice.
Products typically ship the next business day with FedEx or USPS and should arrive within 3 to 7 business days within the US. International shipments may take up to 4 weeks.
Note: for large shipments to Alaska, Hawaii, and international destinations additional freight charges may apply; we will contact you within one business day if additional shipping is required.
⟶ See our shipping policy for more details.
At Sunreed™, we stand behind the quality of our instruments and the care of your experience. However, if something about your order does not feel right, please reach out within 30 days of your order date. We are here to support you, both in your instrument and your practice.
⟶ View our refund policy for further information.
Which Frosted Crystal Bowl Set Should You Choose?
Zacciah Blackburn, Emissary of Sound™, explains the differences between 7, 8, and 9 bowl sets, and how you can use crystal bowls in your practice.
Need help choosing? We're here to help! Read our extensive bowl guide or book a consultation with us.
The Sunreed™ Difference

Value in Community
Your purchase supports
- Livable wages
- Artisan makers
- Authentic teachings
- Sustainable operations
100% Quality Guarantee
We stand behind the quality of our instruments and the care of your experience
- Simple 30 days returns
- Integration call with orders over $200

Real People. Real Conversation
We support your sound healing journey
- Exceptional customer care
- Free pre-purchase consultations
- In-person shopping appointments



