Tame the lows. Maximize your headroom.
The HiPass by Shakmat is a compact, quad-channel high-pass filter module designed to clean up your mix and enhance clarity. With two pairs of fixed-frequency 3-pole filters, it’s the perfect utility for eliminating unwanted sub frequencies and DC offset from your audio path.

The top two filters cut at 30Hz, ideal for removing extreme lows, rumble, or DC components introduced by filters, FM, or feedback patches. The lower two filters cut at 100Hz, just like the low-cut sections found on professional mixing consoles—perfect for tightening up your mix and creating space for low-end instruments.

Skiff-friendly and easy to integrate into any modular setup, HiPass is a subtle yet powerful tool for refining your system’s output.
Available as an assembled module only.

Key Features

• 4 fixed-frequency high-pass filters (Butterworth response)

• Filters 1 & 2: 30Hz cut, 3-pole (–18dB/oct), ideal for DC and sub removal

• Filters 3 & 4: 100Hz cut, 3-pole (–18dB/oct), classic mixer-style low cut

• Perfect for stereo main output cleanup

• Enhances headroom by eliminating inaudible lows

• Skiff-friendly design

• Assembled version only

Technical Specifications

• Width: 2HP

• Depth: 29mm

• Power: +12V: 15mA / –12V: 15mA

Applications

• Cleaning up your modular system’s stereo output

• Removing sub frequencies and DC offset

• Prepping audio for external processing or mixing

• Tightening mix elements for clarity and punch

• Ideal for live and studio setups

Keep your mix lean and focused.