Vermona Perfourmer

Vermona PERFOURMER Image

The Perfourmer is a hands-on, real-time Quad Analog Synthesizer. It is a true analog synthesizer ideal for basses, leads, pads and effect sounds! It consists of four voices, each a separate synthesizer channel with its own VCO, VCF, VCA and LFO. Unlike conventional synths, each voice is treated as a separate or monophonic synth, each with its own knobs for tweaking. In fact, each synth channel gets 2 rows of knobs (that's 18 knobs per synth channel). Each of the four synth channels are identical. This method of synthesis allows users to create four totally different synth sounds which can either be layered into unique textural sounds or treated as separate multitimbral parts, such as a monophonic synth bass, monophonic synth lead and polyphonic pads.

Each synth channel consists of the following features and/or parameters: There is 1 VCO per channel with 6 waveforms to choose from plus a white-noise generator. Pitch can be adjusted +/- 13 halftones. There's a 4-pole lowpass resonant filter with variable keytracking and ADSR envelopes for the VCF and VCA. The VCA can also be modulated by the a fixed Gate envelope or the LFO. The LFO has four waveforms and can modulate VCO pitch, VCF requency cutoff, and the VCA.

The Perfourmer features some curious ways of linking the four synth channels together to yield some interesting results. Unison mode combines all four voices into a monophonic synth sound, great for creating simple to complex lead and bass sounds. Duophonic mode combines Synths 1 and 2 into voice no. 1 and Synths 3 and 4 into voice no. 2. This is ideal for creating two-fingered (duophonic) pads, like perfect fifths, fourths and octaves. In Polyphonic mode, all channels function as a 4-voice polyphonic for even better pads and textures.

Additionally there's also an FM mode where Synths 1 and 3 don't produce audible sound, but rather, function to modulate their neighboring channels 2 and 4. The Perfourmer can also be used as a 4-channel filterbank. There are audio inputs to the filter for processing external audio. Each channel has it's own individual audio outputs in addition to the stereo Main Mix outputs in the back of the unit. These output jacks double up as insert jacks for externally processing each synth channel. With some creativity and some TRS insert cables you can actually route signals between the channels, ie: send VCO1 from Synth 1 out into Synth 2 so that it is processed by both VCFs, VCAs, and LFOs in Synths 1 and 2.

MIDI is the main means of playing the sounds you create with this synth. However, four optional CV/Gate inputs (1V/octave) can be added for controlling each synth channel from other analog gear. Cutoff frequencies of each synthesizer channel can be controlled by MIDI, but not by CV. The lack of on-board program memory is disappointing. With over 72 knobs, being able to save and recall your favorite sounds should have been a no brainer...oh well. It's a perfect companion to the Vermona DRM-1 Analog Drum Synth.

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21 Visitor comments
October 23, 2012 @ 7:16 am
Have the MK1, amazing synth, can sound so unique but also great for lovely warm and lush sounds, never will sell it. Used by Depeche mode too
August 7, 2012 @ 4:15 pm
Just got this reply about bug from Theo at #comment-1978

We just received the answer. Here’s the translation:

“There was actually a bug in conjunction with the legato mode. This has been fixed with the penultimate batch of the PERFOURMER MKII some time ago. If there’s any problem it can always be solved by us. In the worst case this means the device needs to be sent to us.” (Vermona, 07.08.2012)

So, the MIDI-legato problem should be erased, as Vermona says …

Regards, Theo
re: issure design
July 24, 2012 @ 1:22 pm
Hmmm, I have experienced none of those issues with MK1. Looks like I saved a grand on getting the first edition. Maybe the only real difference is the appearance!
Design issues, useless support
June 14, 2012 @ 5:37 am
Just to warn people here that the new perFOURmer MK2 has a BUG which causes it to miss MIDI notes when legato is turned off. Vermona have not (and probably never will) publicly address this problem as the fix involves having to recall the unit back to Germany! They offered to fix it for me and then failed to collect. Their communication is slow and they regularly just totally ignore questions. I also bought a Mono Lancet and the osc1 goes completely out of tune after 20 mins! Octave tracking is screwed. This company has big design issues. Spread the word, save your cash. Avoid.
May 9, 2012 @ 3:51 am
Unique sound. TOTALLY capable of doing run of the mill stuff and TOTALLY capable of being a bass monster if required (though using it for such a menial task would be wasting its capabilities). A very special synth with chunky osc's, smooth (and vintage sounding) filter and nice snappy envelopes.

No problems with it staying in tune here (though it's an idea to give it 10 mins to warm up and stabilize, as with any VCO synth). Not just a synth for wierd and wonderful sounds at all - a true instrument. Actually - it's 4!

MIDI control is sparse - better on PerFourMer MK2 but x2 price...
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User Rating

Rated 3.91 (196 Votes)

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  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 4 voices
  • Oscillators - 4 VCOs (1 per voice) with 6 waveforms per osc. plus white-noise gen.
  • LFO - One per voice with 4 waveforms and can modulate the VCO pitch, VCF frequency cutoff, or VCA.
  • Filter - One 4-pole (24dB/oct) lowpass per voice with Resonance and Variable Keytrack, ADSR envelope
  • VCA - ADSR envelope
  • Keyboard - None
  • Memory - None
  • Control - MIDI IN/THRU (Optional Four CV/Gate Inputs at 1V/octave)
  • Date Produced - 2002
  • Resources & Credits
  • Images from EN-PORT.

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