Ampli-Phone™ Performance Testing

The Ampli-phone was subjected to rigorous testing in the anechoic chamber of a major acoustic laboratory.  The chart at the right is a very accurate representation of the performance of the iPhone with the Ampli-Phone (green bars) compared with the performance of the iPhone by itself (orange bars).

The Ampli-Phone provided a volume increase in the order of 18db, along with a much broader audio spectrum. 

Notice too that the response of the iPhone speaker with the Ampli-phone is much smoother over the frequency range than the response of the iPhone alone.

 

Tests conducted in an anechoic chamber. 

Note the lack of large nodes or resonances in the overall response.

This is outstanding performance.