Henretta Tone Xciter - Bandpass filter

They say:

The Tone Xciter is an EQ-based tone-sculpting tool inspired by the ``ToneX'' control on a rare old amp model from the 60's. The pedal uses a band-pass filter with controls for peak frequency and intensity.

The Tone Xciter is a simple yet versatile bandpass filter with two controls - frequency and intensity.  At lower intensity settings, it works like a tone control to make subtle tone-sculpting changes to your sound.  At higher intensity settings, it's a screaming "cocked wah-wah" effect that's sure to make you smile.