Studio Electronics SEM Filter

Studio Electronics Boomstar Modular SEM Filter provides simultaneous high pass, low pass, and band pass outputs all with a 12 dB/oct slope.

The notch is the inverse of the bandpass, achieved by summing the low pass and high pass outputs.

This version is a combination of the original SEM filter and the newer design from the OBX, along with improvements by SE.

It has a modest current draw, which it pulls evenly from the plus and minus rails.

Features:

• Three attenuverter and four attenuation pots control: FREQUENCY, RESONANCE, FREQ CV 1, RESO CV, LP HP, INPUT and OUTPUT, delivering smooth, detailed, and complex expression.
• Switch Between: FULL and HALF strength filter frequency keyboard/voltage tracking, and BP / LP-HP modes.
• Seven patch points: 1 V/O, FREQ CV 1, FREQ CV 2, RESO CV, INPUT, BP LP-HP, and OUTPUT direct the deepest manipulation.

All Controls and Patch Points:

• FREQUENCY – Adjusts the frequency, or cut-off of the filter. 
• RESONANCE – Adjusts the resonance of the filter.
• FULL HALF TRACK – Switch between full and half keyboard/voltage tracking.
• FREQ CV 1 – Frequency control voltage 1 input attenuverter.
• RESO CV – Resonance control voltage input attenuverter.
• LP HP – Low Pass / High Pass attenuverter.
• INPUT – Adjusts the audio input.
• OUTPUT – Adjusts the audio output.
• 1 V/O – One volt per octave control voltage input. 
• FREQ CV 1 – Frequency control voltage 1 input. 
• BP OUT – Band Pass Output. No cable patched, BP passes through the mains.
• RESO CV – Resonance control voltage input.
• INPUT – Audio input.
• BP LP-HP – Switch between Band Pass and Low Pass - High Pass modes.
• OUTPUT – Audio output.

Specification:

• Size - 12hp
• Depth - 39.7mm with ribbon cable attached 
• Power Usage - 32mA (+12 / -12)

Manufacturer: Studio Electronics