Plugin interface — screenshot pending
EQ

Sie-Q

Soundtoys

Where to get itAvailable from Soundtoyssoundtoys.com

Sie-Q is a vintage German equalizer plugin modeled after the Siemens w295b, a discrete silicon transistor EQ from classic Sitral consoles. It offers a gentle, musical 3-band design with low and high shelves, a 6-position mid-range presence band, and a unique Drive control that adds output saturation by modeling the original hardware's active electronics. Modern continuous gain control replaces the original's fixed 2-3 dB steps, giving smooth, full-range adjustment across all bands.

Written from the manual and checked against it. How we check

Key Features

01Three-band EQ: Low (-15 to +15 dB shelf), High (-15 to +15 dB bell/low-pass), Mid with 6 fixed frequencies
02Mid Frequency selector: 700 Hz, 1 kHz, 1.5 kHz, 2.3 kHz, 3.5 kHz, 5.6 kHz
03Mid Gain with proportional Q: -8 to +8 dB with adaptive curve width
04Drive control (-15 to +15 dB) with automatic gain reduction for output saturation modeling
05Low shelf creates gentle bell shape when boosted; High band creates low-pass filter when cut

Things to Try

  • 01Push the Drive control a little or a lot to add edgy saturation to bass, vocals, and more
  • 02Use the High band to add silky high end to vocals and instruments
  • 03Select Mid Frequency center frequencies to accentuate or soften mid-range details

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Sie-Q by Soundtoys | Plugin Library