174 Hz – Pain Reliever This, the lowest of the Solfeggio Frequency’s is useful as a natural anesthetic and is grounding. It tends to remove pain both physically and energetically, giving our organs a sense of security, safety and love so they operate at their best. It is most often felt in the lower chakras. This is the lowest of the three triads that complete the Solfeggio Circle. 174, 285 and 396 finish the “Pure Tone” circle with 9 Frequencies in all. 9 is the number of completion of the Solfeggio tones lending themselves to perfect Mathematical harmony.