Electrix Filter Queen - Vintage Stereo Filter

Controls

  • Env Follower Release
    Turning the release knob slows down and smoothes out the ENV follower response. Use shorter release settings for more immediate response. This control can subtly change the percussive quality of your mix.
  • Env Follower Depth
    Sets the amount the input signal’s 'dynamic envelope' will affect the Filter frequency. Start around 5 with this control. 3-7 is the general range in which most instruments trigger the envelope follower properly. 7-10 is for lowlevel signals.
  • Env Follower Band
    Selects between 7 combinations of the frequency bands the ENV follower can track. The ENV follower band select can be used to focus the ENV Follower in on a particular frequency band. For example the mid band will focus in on the snare drum and vocals, while the high band will pick up hihats and cymbals. The combinations are represented by 3 LED for High, Mid, and Low. The combinations are: All bands, High, Mid, Low, Low+High, Low+Mid, High+Mid. Note: Every time the Band button is pressed Filter Queen will cycle to the next combination. However, at any point in the cycle the Band button can be held down for 300ms and it will return directly to All bands.
  • Filter Frequency
    Sets the cutoff frequency of the stereo filter. Use it in conjunction with the resonance control. The more resonance you use the more distinct any changes you make with frequency will be. The frequency tuning range of the filter covers a 12 octave range from 10 Hz to 20 kHz. Any 3rd party 1/4" TRS Expression Pedal, (such as a Roland EV-5) can control the filter frequency. (Great for guitar or bass.)
  • Filter Resonance
    This controls the level of the peak at the resonant frequency of the filter, i.e. the frequency you dialed in with the frequency knob. The Filter Queen’s resonance control can be set to negative values by rotating the control all the way counter clockwise. In Low Pass, High Pass and Band Pass modes, negative resonance will simply smooth out the response of the filter, making it less distinct. In Notch Filter mode, negative feedback will increase the depth of the notch filter making it more pronounced.
  • Filter Type
    This control selects the basic sound of the filter. Each filter type has a unique sound. You will find situations where each one offers you a unique effect on a given signal.
    • The Low Pass Filter is the most commonly used filter type. This is the kind of filter you will find on vintage synths and envelope followers. It is useful for controlling the amount of harmonics or the brightness of a signal. As you sweep the frequency control, try adding some resonance to make the cutoff frequency more audible.
    • The High Pass Filter will roll off the bass of your signal making things sound thinner as you turn the frequency control to the right.
    • The Band Pass Filter acts like Wah pedal and puts a peak in the middle of your signal. This is great for highlighting certain frequency ranges or for creating a sweeping sound with the frequency knob.
    • The Notch Filter works the exact opposite of the Band Pass filter. Instead of a boost, it puts a notch in your signal, essentially killing a narrow frequency band. This effect often sounds like talking through a pipe.
      For a more dramatic Notch Filter effect use turn the Resonance control all the way counter clockwise into negative Resonance to increase the depth of the notch and the distinctiveness of the effect. It will also create unique sweeping sounds, (that are similar to a phase shifter) when used in conjunction with the LFO. For best Notch result put the Resonance knob fully counter-clockwise.
  • Filter Engage
    This control toggles the filter on and off. When the filter is off the Filter queen circuit is bypassed. Whenever the Filter Queen is Engaged the LFO is automatically restarted. Use this feature to start long LFO sweeps on the downbeat by engaging the Filter Queen right on the top of the bar.
  • Filter Momentary
    This switch temporarily engages the stereo filter. Try using it to tap rhythmic patterns while adjusting the frequency knob.
  • LFO Speed
    LFO Speed controls the period of the LFO waveforms by changing the frequency of the LFO. The LFO Frequency range covers 0.05 Hz to 30 Hz for subtle to extreme effects.
  • LFO Depth
    This controls the amount the LFO changes the filter frequency.
  • LFO Waveform
    The LFO provides the following cyclic (or repetitive) waveforms: Sawtooth, Inverse Sawtooth, Triangle, Square Wave and Random. If you increase the LFO depth and turn the LFO speed up a bit you will be able to hear their effect on your frequency setting. The Square Waveform is great for gating effects, while the triangle is better for long, slow sweeps.
  • Effect Mix
    Controls the Mix of the Filter in relation to your dry signal. 0% is all dry, or the same as bypassing the Filter Queen. 100% will be all Filter Queen and none of your dry signal.

Various

the Electrix brochure

Big analog sound in a small package! Nothing sounds as great as real analog filtering. FilterQueen can turn the dullest, most lifeless samples into lush, warm, phatt sounds.

Four Filter Types. Choose between Low pass, High Pass, Band Pass and Notch filters.

The Envelope Follower creates a unique sound-shaping palette with depth, shape and band limiting controls.

The LFO can be used at the same time as the envelope follower for some funky modulations.

Five Waveforms: saw tooth, inverse saw tooth, triangle, square and random. The Expression Pedal input lets you play the frequency like a Wah pedal.

Electrix (2001)

Big analog sound in a small package! Nothing sounds as great as real analog filtering. Filterqueen can turn the dullest, most lifeless samples into lush, warm, phatt sounds.

Use an expression pedal to control the Band, Notch, Low Pass or High Pass filters and go way beyond the classic Wah sounds. Or use the band limited envelope follower to trigger filter sweeps in perfect sync with the kick drum. Produce surreal Phase shifting effects by combining our unique "negative" resonance with the Notch filter and a fast LFO.

FilterQueen is the first multi mode, stereo filter ever to hit this price range and if that's not enough, its audio quality will impress even the most discerning ear. Powerful sound shaping, wicked price.

    "I've been raving about the work being done over at electrix for months now. These pieces of gear receive more praise and looks of wonder than anything else in my studio"

    -jim aikin, senior editor, keyboard

Features:

  • Sound Investment. Combining quality, versatility and price, FilterQueen will endure from hobby to pro.
  • Does Size Matter? Our Unique 10" tabletop/modular rack-mount design can easily find a home in your space.
  • Slide into Your Groove. No need to worry about tempo; the envelope follower can auto-trigger filter sweeps in perfect sync with the kick, mid range or the high hats.
  • Raise the Dead! Nothing is as powerful or sounds as great as real analog filtering. FilterQueen can turn the dullest, most lifeless samples into lush, warm and extremely phatt sounds.
  • Four Filter Types. Choose between Low pass, High Pass, Band Pass and Notch filters.
  • Five Waveforms: saw tooth, inverse saw tooth, triangle, square and random.
  • The Envelope Follower creates a unique sound-shaping palette with depth, shape and band limiting controls.
  • The LFO can be used at the same time as the envelope follower for some funky modulations.
  • The Expression Pedal input lets you play the frequency like a Wah pedal.
  • Loads of I/O allows you to run virtually anything through the FilterQueen.

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envelope-controlled envelope follower amplitude controlled low frequency oscillator lfo-controlled foot-controlled threadle wah rackmountable rackmount filter eq/excite/filter lowpass lopass lo-pass lp lpf low-pass filter hpf hipass hi-pass highpass hp high-pass filter bandpass bp bpf band-pass filter notch filter
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