Here is an example of a Vox Amplihonic cornet. Like the other horns in the Vox Ampliphonic line, this cornet included a port, this time located in the bell of the instrument, used to mount an audio pickup.
The pickup allowed the trumpet to be connected to either the Octavoice II or Stereo Multi Voice effects processors or to one of the three models of powered music stands offered in the Vox Ampliphonic product line.
Vox had high expectations for the Ampliphonic product line, but sales were quite disappointing. Whirlpool, the parent company of Thomas Organ, was so displeased with the costly failure of the Ampliphonic line that it brought on the termination of Joe Benaron, the president of Thomas Organ.