King Tubbys high pass filter was known as "the big knob". He often used it to sweep the reverbs and echos in his dub mixes. This is where the inspiration for HighPass Filter 1012 came from. The 1012 is a 2 pole, 12dB/Octave high pass filter with peak control, input level indicator and transistor drive to boost the signal while giving it some analog heat.
The CV jacks on the back lets you smoothly modulate the filter frequency with control voltage.
The HP Filter 1012 is part of the Vintage Filter Suite Bundle together with LP Filter 1024 and HPLP Filter 1224. Get all three of them for a reduced price at almost 60% discount in the Vintage Filter Suite Bundle.