Filters

Notes: The Polivoks Filter, from Elta Music, utilizes the classic Soviet filter chip for a unique and iconic filter tone. It provides both CV and Expression pedal inputs, built in LFO, and WOB fader for ultimate control. On board LFO has a fast/slow range switch, and on/off. Separate LFO OUT can be used to control external CV devices. With lowpass, bandpass, highpass, and notch filter types, one can shape tones into whole new realms. The pedal is switched on with a switch, rather than a stomp button, catering towards use as a desktop filter.

Notes: Heaps of character from this stereo/dual-channel filter unit, based on the legendary Soviety Polivoks synth. Raw, aggressive and colourful sound with hands-on control and CV inputs.

Supplier's Notes:
Polyvox PF3 double-stereo filter utilizes the classic Soviet filter chip for a unique and iconic filter tone. Two independent 12dB multi-mode filters that can be controlled by a single cutoff knob. Turning the filter into a 24dB filter, when connected in series. When connected in stereo, you can achieve interesting effects by using different modes to each channel. A noise generator is on board pre-filter and can be used separately as a source of white and pink noise. Volume as well as clean and processed signal balance per channel. Can be used as two independent filters or stereo mode.

FILTER modes - Lowpass, Bandpass, Hi-pass, Notch.
NOISE generator - pink, white and channel balancing.
FILTER 1 and FILTER 2 - CV controls.
LINK switches to control two filters and CV at the same time with one slice knob.
SOFT/HARD cutoff control

Notes: T stands for Time.

The T-Resonator transforms timely events into an analog feedbacked filter network. What comes out of this you can hear in the audio samples.

The T-Resonator is something like an M-Resonator + Digital Delay. But you can select 8 different delay algorithms, each with different delays and different feedbacks and modulate them even with an LFO.

Delays reach from less than a millisecond to 1 second, range and structure is depending on the algorithm.

The delay feedback comes across the analog filters, of course.

You can create gaining analog echoes, klingon parties by extremely feedbacked wave guide algorithm and much more.

By the analog feedback everything sounds organic.

The screaming analog feedbacks can delay themselves and thereby form new sound patterns.

The sine LFO gets retriggered by the audio signal and can be shaped with the audio envelope or just run alone. In center position the amount is 0, to the left it's envelope-shaped LFO, to the right it's only LFO.

The filters are made from discreet parts and form a 24 dB pole lowpass filter transistor cascade.

They can, in any thinkable way, be self feedbacked and be coupled or feedbacked with each other, so that extreme sounds and chaotic states create - all what you need today for creative analog sound design.

Incredible bass gains or screaming scratch sounds are no problem. The mix pots are zeroed in center position; any other angle will couple or feedback negatively or positively. FM in both directions is also available.

The input has an adjustable gain and a Hi-Z input to plug in a guitar directly. Any line level signal can be processed, be it either mono or stereo.

NB: Comes with EU plug power supply

www.youtube.com/watch?v=P6FHbqRb9S4

Notes: ***B-STOCK: Without original box, product in perfect working order***


We have to admit being more than a little proud when thinking of the Action Filter's history. Twelve years ago we made the first version of this still popular stereo-filter with no end in sight. It still is built upon the same basic principle: ACTION!

Neither MIDI nor control voltage decide about filter sweeps and cues but you. Action Filter demands and supports your intuition and creativity. Reign over frequencies and rhythm instead of being a victim of technique.

What remains?

Like its predecessors, Action Filter 4 consists of a high-/lowpass filter-combination per stereo channel. Together, these either work as bandpass- or notch-filter with variable bandwidth and individual resonance per filter.

What's new?

Unspectacular but a spectacle nevertheless: Beside the mandatory RCA in- and outputs, Action Filter 4 is equipped with 1/4"-jacks. In addition, the FILTER MODE switch made it to the unit's front, labeled as STYLE.

Who is the Action Filter 4 dedicated to?

... of course for all action heroes! With jack- and RCA-connectors, Action Filter 4 is best suited for the DJ booth as well as for studio applications. You can use it to process full tracks or add that "certain something" to individual audio tracks. Emphasize or kill specific frequency bands and - on top of it - have lots of fun actively playing with frequencies! Simply: ACTION!

Notes: ***B-STOCK: Box opened, product in perfect working order***


The Vermona Filter Lancet is a compact but versatile stand-alone multimode filter for your desktop. It's the right weapon against static sound and boredom and made for any kind of audio signal. The filter section itself has 3 modes: low-pass, high-pass and band-pass. The last one works with a slope of 12 dB per octave whereas low- and high-pass are 24 dB filters.

You can give the filter some extra punch with the Balls knob, known from Kick Lancet. It pushes low and high frequencies of the signal before being filtered. And of course the resonance is self-oscillating.

Other than the filter section of Mono Lancet, the Filter Lancet is not based on (Moog-) cascade circuitry. It was inspired by the filters of the Vermona M.A.R.S. respectively DAF-1 and Action Filter.

Without modulation the Filter Lanced would still be a good filter but kind of boring. So it is equipped with a LFO, an envelope generator, an envelope follower and a CV/pedal input. The LFO has 2 frequency ranges and goes up to 250Hz - that's fast. At low frequencies the LFO can be re-triggered by gate- or audio signals. It has sample & hold and five waveforms: saw up and saw down, square, sine and triangle.

The envelope generator can be triggered by the input signal or an additional audio signal as well as by a gate voltage. If triggering it via gate it works as an attack-sustain-release envelope. With audio triggers its mode is attack-decay. The envelope follower transforms the contour of the input signal into control voltages that can serve as modulation source.

The LFO modulation intensity can be set separately from modulation intensity of envelope generator and envelope follower on the VCF- as well as on the VCA section.

The Filter Lancet features a drive circuit right in the input section to add subtle shades of overdrive up to solid distortions.

The Filter Lancet is packed with useful features. It's a great and powerful addition to any synthesizer including Mono Lancet with or without Modular Dock. But Filter Lancet also is designed for stringed instruments. It creates standard effects like WahWah and tremolo with ease and even adds a palette of extraordinary sounds to any effect repertoire.