MATRIXSYNTH: New Details on the Knifonium 25 Tube Monophonic Synthesizer

Tuesday, November 17, 2015

New Details on the Knifonium 25 Tube Monophonic Synthesizer


See the Knifonium channel for previous posts including video.

"Knifonium is a 25 tube monophonic synthesizer with a 4th order ladder filter and a ring modulator.
Basic Specs:
Oscillator 1 (5 tubes)
-Sawtooth, Triangle, Pulse, Sine
-Sync
-FM
-Octaves 64, 32, 16, 8, 4, 2 -Coarse tune in semitone steps-Fine tune in +/- 100 cents.

Oscillator 2 (3 tubes)
-Sawtooth, Triangle, Sine
-is master for sync and modulator for FM
-Octaves 64, 32, 16, 8, 4, 2 -Coarse tune in semitone steps-Fine tune in +/- 100 cents.

Noise (2 tubes):
-Noise generator is a special tube that is subjected to strong magnetic field. -White, Pink and Red.

Ring modulator (3 tubes)
-Input is sine waves from both oscillators or anything from external inputs, feedback et cetera, drive volume can be adjusted
-Very wide nonlinear range available.

Mixer (2 tubes)
-A tube op amp, virtual earth mixer with one external input.
-3 of the input levels can be modulated.

Filter (7 tubes)
-4th order ladder filter.
-Can go from clean to messy to violent depending on levels and resonance.

VCA (2 tubes)
-Transformer coupled variable mu pentode design.
-More than 40dB of linear range. Capable of total shut down. A switch to increase internal level by 10 dB for nice distortion.

Output amplifier (1 tube)
-Pentode tube, transformer coupled
-3 operation modes for different distortions.
-Provides truly professional transformer balanced output that will drive anything, anywhere.

Keyboard is a 3 octave traditional wooden construction, extremely robust and stable. Fast action, good touch. After touch + velocity sensitivity. Plug-in resistor modules determine scale. These modules can be made to order for any tuning or temperament, as long as the order of notes is ascending. Easy to change in 2 minutes.


From Knifonium creator Jonte Knif…'I like to see this synthesizer as a musical instrument in a very traditional sense. Knifonium is not just a ”make a weird noise” or ”look it has tubes” or 'I have thus proved that I am crazy' -piece of assorted ancient parts although I do approve those points of view too.

It is my dream, it is my tour de force, it is an object that brings together many aspects of my professional past in (early) music, instrument making and as tube equipment manufacturer.

Knifonium is a very carefully designed synth for many purposes, small and light enough to take to gigs despite of the amount of electronics and traditional craftsmanship and adequately sized controllers. Built to the highest instrument making standards Knifonium is a joy to operate and gaze at.'

Price: $12,000. + Shipping

For Sales in North America Contact GSF Agency http://gsfagency.com"

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