Pirate Audio equalizer?

Hello,
Is there an equalizer available in the Pirate Audio line out or headphone amp for raspberry pi?
Many thanks!

I’m no expert on this but I think that would need to be some type of alsa plugin or something?
https://scribles.net/enabling-equalizer-on-raspberry-pi-using-alsa-equal-plugin/

Thanks alphanumeric,
If someone have tested this I would like to know.
With an old personal projet I enconter issue with equalizer and a PiFi DAC (Raspberry Pi modèle B Rev. 2 with Raspfi )

Hello alls,
I follow this http://www.gerrelt.nl/RaspberryPi/wordpress/equalizer/
Now I wonder how to tell mopidy to set output sound to equalizer.
I try to change in /etc/mopidy/mopidy.conf :
output = alsasink device=hw:sndrpihifiberry
to
output = alsasink device=equal
but it don"t work, ( mopidy[398]: ERROR [MainThread] mopidy.audio.gst GStreamer error: Could not open audio device for playback.)