Frequency response

The Panphonics audio element reproduces the whole frequency range on the same unit without separate crossover filters. This results in a smoother, non-resonant frequency response that sounds better.

The Panphonics audio element exhibits a flat (±3 dB) frequency response from 300 Hz to above 20 kHz, when using a single 600x600 mm element.

For low to low-mid frequencies, an acoustical short circuit is formed between the opposite surfaces of the element as the front and rear sound pressures cancel out each other at the edges of the element. The frequency response of the element drops at low frequencies corresponding to these wavelengths. The acoustical short circuit may be removed by adding an enclosure behind the element. The minimum depth for the enclosure is around 20 mm in order not to decrease the sound pressure level produced by the element.

Frequency response may also be extended to lower frequencies by using multiple elements. At high frequencies the frequency range is not limited within the audio range, as the mass of the moving diaphragm is very small and no moving coil inertia effects need to be considered.