Sunreed Instruments Pitch Standards For Crystal Singing Bowls
Quartz Crystal Singing Bowls are not frequency generators. No crystal bowl plays a single frequency. The sound that you get from a crystal bowl varies depending on how you strike the bowl, how hard you play the bowl and what you are playing the bowl with. Further we have found that different tuners produce different readings for bowls. We understand this and care deeply about providing accurately tuned bowls that will create beautiful harmonies for your meditations, and strive to provide for you the highest quality product we can for precision in tuning and quality of play. Our standards are much more tightly controlled than most industry standards for crystal bowls, and we try to help you understand the nature of the bowls to have the best set. Below you can find our standards for pitch for quartz crystal singing bowls.
For All Individually Listed Quartz Crystal Singing Bowls, we guarantee that the bowl has been tested with a tuner to sing, or sustain within +/- 3 cents of the advertised cent value. So if the bowl is listed as a +5 cent bowl, it will sing or sustain between +3 and +8 cents.
For All Quartz Crystal Bowl Sets, tuned to 440hz or 432hz, we guarantee that the bowls will sing or sustain within +/- 5 cents of Perfect Pitch 440hz or 432hz tuning which will ensure harmony.