Video by Heritage Audio via YouTube
Source
More info:
– Heritage Audio HA73EQ Elite Series:
– Heritage Audio HA73EQx2 Elite Series:
https://heritageaudio.com/ha-73-eqx2/
– Heritage Audio HA81A EQ Elite Series:
https://heritageaudio.com/ha-81a-eq/
– Heritage Audio 6673 80 Series:
https://heritageaudio.com/6673-2/
– Heritage Audio 8173 80 Series:
https://heritageaudio.com/8173-2/
– Heritage Audio BritStrip:
https://heritageaudio.com/britstrip/