Why not use steel (Aura) transducers in the Sound Therapy / Harp Therapy Tables?
A. The steel transducers have an effective tactile range of 20 – 100 Hz (low end of the sound spectrum). These steel transducers do not produce very good sound and you should use low pass crossovers to limit the sound that is produced above their effective tactile range. The new technology transducer adds vibration from 10 to 1200 Hz as well as producing good sound for the tables. The Sound Therapy / Harp Therapy Tables do not utilize the steel transducers, since the steel transducers are not effective below 20 Hz or above 100 Hz. Sound Therapists want accurate vibration and sound in the 15 – 32 Hz range so we use two advanced technology transducers in these tables. The new transducers are very smooth, quite powerful and accurate, so they are able to fill the tables with vibration. For Harp Therapists, the steel transducers would be almost wasted since harps produce a small amount of sound in the steel transducer’s effective range. The harps do produce quite a bit of sound in the new t
