IK Multimedia Introduces Syntronik 2

"Syntronik 2 sets the new standard in modern virtual synthesizers. IK’s advanced sampling techniques, combined with a hybrid sample and modeling synthesis engine, power a comprehensive collection of rare and sought-after synths with stunning sonic accuracy and the deepest editing.

This is a massive update to the previous release, adding 11 new synths, exciting new, advanced, and much-requested functionality, and a huge number of all-new presets for the 22 original synths taking advantage of all these new features."

"Syntronik 2 features

33 powerful synths with familiar panel designs and easy-to-use controls

A collection of 54 iconic hardware synthesizers and string machines

Multi-sampled oscillators for ultimate authenticity

4 classic types of circuit-modeled filters to shape sounds

DRIFT™ technology for realism of subtle oscillator variations

Mix and match oscillators with filters for new original sounds

True 4-part synth to create rich sounds with Multis and splits

4 dynamic arpeggiators and new step sequencer for complex rhythmic textures

71 high-quality effects derived from T-RackS, MixBox and AmpliTube

More than 200 GB of sounds with disk streaming and over 5,500 presets

Browser search by category or keyword to find sounds in seconds

Optimized resizable interface and “lunchbox-style” effects panel

Load Syntronik sounds into SampleTank 4* for more expandability

Works as a 64-bit plug-in or standalone instrument for Mac/PC

Fully functional free Syntronik CS version also available"

New models.


The CATO captures the distinctive analog sounds of the Octave Cat SRM and its SSM filter. The pure-analog tonality of this synth is huge, and its modulation capabilities allow for truly unique and stylized timbres. Able to create gigantic Moog-style basses, the CAT can also go in its own sonic direction with its clever oscillator sync implementation.

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OCTAVE CAT SRM I DEMO FOR MATT

video upload by Synth Tailor Electronics

"On Christmas Eve, a demo was released highlighting the wonderful, odd, and charismatic Vintage Synthesizer made by Octave Electronics, the CAT SRM (1978).

This crazy CAT SRM synthesizer packs quite a lot into it's package, and can be dialed up to make sweet, calm Cat sounds, or very weird Sci-Fi and Noise sounds.

This CAT SRM was just repaired and restored by our shop Synth Tailor Electronics, this video demo is for Matt from Sensorium Studios.

History on Octave Electronics (later Octave Plateau) CAT SRM:

In 1978 Octave upgraded the Cat to the "Series Revised Model "(aka SRM). This added several improvements, including an SSM2040 VCF, an LFO delay and a pedal input jack for offsetting the VCO1 frequency. The main improvement was the keyboard interface circuitry which included sample and hold circuits for both of the control voltages generated by the keyboard. On most duophonic synths of the era, there was only one sample and hold dedicated to the keyboard, so when playing duophonically, when the keys were released, the secondary control voltage would jump to the primary voltage, meaning that it was impossible to get duophonic notes in the envelope release phase. The Cat SRM would hold both control voltages, so a two-note chord would continue to sound as a chord through the release phase. This was an unusual feature for an analog duophonic keyboard and quite an improvement over competing designs.

If you have a vintage synthesizer, drum machine, piece of rare studio equipment, outboard gear or tape machine...please reach out via our website to send it in for repairs and restoration. Were based out of Columbus, Ohio and our website is: www.synthtailorelectronics.com"

Custom Patch Demos - Octave, Novation, Korg, Yamaha, Roland, Ensoniq, & Oberheim Vintage Synths

video uploads by soitgoesmusic

Playlist:

The Cat by Octave (1976 Non-SRM) Custom Patch Demo

A demo of the vintage Octave Cat synthesizer. This is the original Non-SRM one from 1976. It's one fat sounding synth.

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth. Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- amazing vintage analog sound
- it feels alive with electricity and has lots of subtle variations in the textures of the sound
- independent faders for each wave form means that 8 sounds can be playing at once (4 on VCO 1, 3 on VCO 2, and noise), creating huge sounds

Cons:
- no midi
- needs to be tuned on each use
- needs lots of maintenance (i.e., regular calibration)
- can't save patches and rarely sounds exactly the same twice

Novation Drumstation - Custom Kits Demo

A demo of the OG 808 and 909 emulator: the Novation Drumstation. This is the version 2. Wanted to show the versatility of the machine.

Kits programmed and played by so.it.goes. No effects added. What you hear is direct from the drum machine.

Pros:

- well emulated 808 and 909 sounds in a small 1U rack unit
- adds tuning to some drums that originals don't have
- built in distortion and front cut

Cons:

- no on-board sequencer
- no power switch

Korg MS-20 (Vintage) Custom Patch Demo

A demo of the original Korg MS-20. This is a wild synth that can take you to some unexpected places.

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth. Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- amazing vintage analog sound
- patch bay provides so many unique configurations
- the resonant high pass filter can make huge bass
- has quirks that make it sound and behave like no other (e.g., the unusual sustain on EG2, the hold time on EG2, the External Signal Processor, etc.)

Cons:
- no midi
- can't save patches (though taking pictures can help)

Yamaha RX5 drum machine - Custom Kits Demo

A demo of the under-rated Yamaha RX5 drum machine. Wanted to show how strange and sci-fi this machine can sound.

Kits programmed and played by so.it.goes. No effects added. What you hear is direct from the drum machine. Each section is made from four drum sounds. Only the stock sounds from the unit were used. No cartridges or external sounds added.

Pros:

- amazing voice editing features
- gritty lo-fi sound
- volume slider and individual out for each drum pair

Cons:

- no velocity
- interface is needlessly complex

Roland Juno-106 Custom Patch Demo

A demo of the legendary Roland Juno-106. Trying to show off the analog warmth of this synth.

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth (including the scratchiness of the chorus). Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- amazing analog sound
- hands-on control over all parameters
- wide sweet spot

Cons:
- no velocity
- needs to warm up to sound its best

Korg MS2000 BR Custom Patch Demo

A demo of the Korg MS2000BR. Wanted to show some of this synth's unique features, such as the modulation sequencer (1:03, 2:34, and 5:00) and the vocoder (1:26).

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth. Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- lots of hands on control
- modulation sequencer

Cons:
- polyphony is only 4

Ensoniq ESQ-1 Custom Patch Demo

A demo of the Ensoniq ESQ-1. Trying to show some of the versatility of this digital/analog hybrid synth.

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth. Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- very easy to program for a digital interface
- the keyboard has a great feel

Cons:
- no real-time parameter changes, except through mod wheel

Yamaha TX81Z Custom Patch Demo

A demo of the Yamaha TX81Z. Trying to show what this synth can do beyond the dated presets.

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth. Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- editing the parameters can yield surprising results
- efficient with cost and space

Cons:
- tedious to program

Oberheim Matrix-6R Custom Patch Demo

A demo of the Oberheim Matrix-6R.

Patches programmed and played by so.it.goes. No effects added. What you hear is direct from the synth. Each part is from one patch only. There is no multi-tracking on any part.

Pros:
- a deep synth with lots of editable parameters, many of which can be controlled through the modulation matrix
- great analog sound

Cons:
- tedious to program, can be helpful to have the parameter list in front of you

Jordan Rudess plays the Megawave, Obie One, CATO, and Triptych from Syntronik 2

Jordan Rudess plays the Megawave modern virtual synthesizer from Syntronik 2
video upload by ikmultimedia

"Watch Jordan Rudess plays one of the classic synths of Syntronik 2 - the Megawave. The Megawatt features the powerful wavetable synth sounds of the original Waldorf Microwave, a classic digital/analog hybrid. The Microwave was the heir to the PPG Wave legacy with its sweepable digital wavetables and Curtis chip analog filter. The unit we recorded is the most coveted Rev A version."

And a few more:

Jordan Rudess plays the Obie One modern virtual synthesizer from Syntronik 2


"Watch Jordan Rudess plays one of the classic synths of Syntronik 2 - the Obie One. The Obie One is our recreation of the innovative Oberheim OB-1, excellent at creating classic and fat sounding bass, pad and lead sounds. The new 4-pole slope in our O-Type state variable filter model in Syntronik 2 now captures the distinct difference between the 2- and 4-pole filter sounds of this excellent hardware synth."

Jordan Rudess plays the CATO modern virtual synthesizer from Syntronik 2


"Watch Jordan Rudess plays one of the classic synths of Syntronik 2 - the CATO. The CATO captures the distinctive analog sounds of the Octave Cat SRM and its SSM filter. The pure-analog tonality of this synth is huge, and its modulation capabilities allow for truly unique and stylized timbres. Able to create gigantic Moog-style basses, the CAT can also go in its own sonic direction with its clever oscillator sync implementation."

Jordan Rudess plays the Triptych modern virtual synthesizer from Syntronik 2


"Watch Jordan Rudess plays one of the classic synths of Syntronik 2 - the Triptych. The Triptych is based on the warm sounds of the classic Korg Trident with its separate synth, string and brass sections. The Trident was basically a 2-oscillator Korg Polysix combined with a convincing string machine with dedicated ensemble chorus and a paraphonic brass synth. It is a beast of a synth capable of a wide range of classic analog synth and stringer sounds."

You can find additional IK Multimedia Syntronik 2 psots here.

Octave Cat SRM Demonstrations

Octave Cat SRM demonstration part 1


Octave Cat SRM demonstration part 2


Octave Cat SRM sounds

YouTubes via OriginalJambo. Follow up to this vid.

Behringer to Re-introduce an EMS SYNTHI and More, Much More

The list:

WASP DELUXE
ARP 2600
Octave CAT
SYNTHI VCS3
Roland SH-101 (3 colors)
KORG MS20

Details on each (no new pics in yet, but you might remember the MS-101 here):

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Octave Plateau Cat Synthesizer SRM II Vintage Analog Synth (NOS) w/ Original Box & Docs SN G1056

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"We have been fortunate enough to acquire some New Old Stock(NOS) Cat SRM II synthesizers from Octave Plateau’s last production run in 1981. These units have never been used and were safely kept in storage since the day they were manufactured. If you’re an analog synth aficionado, don’t pass up this opportunity to buy this legendary synthesizer. Once our inventory is sold, you’ll never get a chance to get one in this condition again.

The Cat SRM II was manufactured in 1980 – 81 and is the best and final model of the Cat synthesizer series from the mid-1970s, which included the original Cat and Cat SRM. It has stable Curtis CEM3340 oscillators, an SSM 2044 filter and a digital scanning keyboard that uses a single contact per key, which is significantly more reliable than the dual-contact analog keyboard used on previous Cat models and most other analog synthesizers of the day.

We have calibrated and tested these units to assure everything works as designed. The switches, pots keyboard contacts and buss bar have been cleaned and checked. We also replaced the original press-wood sides with high-quality genuine walnut wood sides and replaced the critical calibration single-turn trimmers with high-precision multi- turn trimmers for greater stability.

SRM II features include:

Monophonic/duophonic keyboard plays two notes with memory function on second note.
Dual VCOs (CEM3340) with oscillator sync and mixable waveforms for complex tones.
Sub octaves on both VCOs for full, deep basssounds.
Four-pole LPF (SSM2044) with adjustable keyboard tracking.
Versatile modulation system to create a wide variety of sounds.
LFO (with variable delay on sine output), S&H and dual envelope generators.
White noise generator.
Extensive expansion jacks on rear panel.
Although this unit has never been used, there may be some minor cosmetic imperfections, which is how it left the factory. Please refer to the photos for cosmetic details."

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Octave Plateau Cat Synthesizer SRM II Vintage Analog (NOS) SN G1218 w/ Original Box & Brochures

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"We have been fortunate enough to acquire some New Old Stock (NOS) Cat SRM II synthesizers from Octave Plateau’s last production run in 1981. These units have never been used and were safely kept in storage since the day they were manufactured. If you’re an analog synth aficionado, here's your opportunity to own an authentic piece of electronic music history.

The Cat SRM II was manufactured in 1980 – 81 and is the best and final model of the Cat synthesizer series from the mid-1970s, which included the original Cat and Cat SRM. We calibrated and thoroughly tested these units to assure everything works as designed. The switches, pots keyboard contacts, buss bar and electronic circuits have all been cleaned and checked. We also replaced the original press-wood sides with high-quality genuine walnut wood sides and replaced critical calibration single-turn trimmers with high-precision multi- turn trimmers for greater stability. Also included is a foot switch that plugs into the back of the synthesizer (see photo) and turns on the glide function when the switch is pressed, allowing a smooth glide between notes only when desired.

Features:

Monophonic/duophonic keyboard plays two notes with memory function on second note.
Digital keyboard with single contact per key (more reliable than the dual-contact analog keyboard used on previous Cat models and most other analog synthesizers of the day).
Dual VCOs (CEM3340) with oscillator sync and mixable waveforms for complex tones.
Sub octaves on both VCOs for full, deep bass sounds.
Four-pole LPF (SSM2044) with adjustable keyboard tracking.
Versatile modulation system to create a wide variety of sounds.
LFO (with variable delay on sine output), S&H and dual envelope generators.
White noise generator.
Extensive expansion jacks on rear panel.
Although this unit has never been used, there may be some minor cosmetic imperfections, which is how it left the factory. Please refer to the photos for cosmetic details."

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Octave Plateau Cat SRM II Vintage Analog Synthesizer (NOS) SN G1110

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"* Vintage Cat SRM II, factory new, never used

* One of the first and best sounding analog synthesizers ever made

* Includes Glide on/off foot switch

* Includes original owner’s manual and original literature for Octave Plateau products

* For more information about the Cat series, Google "Fandom Electronic Music Wiki Cat Synthesizer"

The Cat SRM II synthesizer was manufactured by Octave-Plateau from 1980 – 81. It is the best and final model of the Cat synthesizer series, which included the original Cat (1976) and Cat SRM (1978). We have been fortunate enough to acquire some New Old Stock (NOS) from Octave Plateau’s last production run in 1981. These units have never been used and were safely kept in storage since the day they were manufactured. If you’re an analog synth aficionado, this is an opportunity to own an authentic piece of electronic music history.

Here’s what we’ve done to this unit:

Calibrated and thoroughly tested every function to assure everything works as designed.
Cleaned and checked all switches, pots keyboard contacts, buss bar and electronic circuits.
Replaced the keyboard rubber bushings on all keys.
Replaced critical calibration single-turn trimmers with high-precision multi-turn trimmers for greater stability.
Included a foot switch that plugs into the back of the synthesizer and turns on the glide function when the switch is pressed, allowing a smooth glide between notes only when desired.
Features:

Monophonic/duophonic keyboard plays two notes with memory function on second note.
Digital keyboard with single contact per key (more reliable than the dual-contact analog keyboard used on previous Cat models and most other analog synthesizers of the day).
Dual VCOs (CEM3340) with oscillator sync and mixable waveforms for complex tones.
Sub octaves on both VCOs for full, deep bass sounds.
Four-pole LPF (SSM2044) with adjustable keyboard tracking.
Versatile modulation system to create a wide variety of sounds.
LFO (with variable delay on sine output), S&H and dual envelope generators.
White noise generator.
Extensive expansion jacks on rear panel.
This unit has the original press-wood veneer sides with plastic edge stripping. It is shipped in a plain, unmarked box, not the original box. Although it has never been used, there may be some minor cosmetic imperfections, which is how it left the factory. Please refer to the photos for cosmetic details."

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Octave Plateau The Cat Analog Synthesizer PRE-SRM 1976

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

This one was listed back in 2012.

"Pre-SRM model, super clean, works and sounds great. Much richer tone than either of the later SRM models. Comparable to Mk. II Arp Odyssey (2810) except many more routing and sound shaping options. One of the most versatile monosynths ever made, a superb solo/lead instrument, an insane FX machine, an absolute joy to play.

This unit has holes drilled for CV/gate (non-standard) but interface does not work. so just consider this as a standard pre-SRM Cat that can be easily modded in the event you want to add CV/gate."

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Octave Cat SRM

Note: Auction links are affiliate links for which the site may be compensated.
via this auction

"This is the earlier model and is capable of duophonic (the two oscillators can be played separately) and each oscillator has a separate S/H feature, but it is not an SRM version because it doesn't have SRM written on the back and also looks different from the SRM (i.e. no LFO delay in the ADSR section, different knobs, etc.). In excellent condition and is working great. Keyboard triggers well most of the time but may need a cleaning in the future. Similar in design to the Arp Odyssey but with its own unique sound and tone. Sounds great, some gnarly bass and analogue character."

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Octave Cat non-SRM Vintage Analog Synthesizer

Note: Auction links are affiliate links for which the site may be compensated. via this auction
See the seller's other items for more.

"Octave Cat analog synthesizer. This is the earlier model and is capable of duophonic (the two oscillators can be played separately) and each oscillator has a separate S/H feature, but it is not an SRM version because it doesn't have SRM written on the back and also looks different from the SRM (i.e. no LFO delay in the ADSR section, different knobs, etc.). In excellent condition and is working great. Keyboard triggers well most of the time but may need a cleaning in the future. Similar in design to the Arp Odyssey but with its own unique sound and tone. Sounds great, some gnarly bass and analogue character..."

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OCTAVE THE CAT Synthesizer - Sounds & Patches | Synth Demo

Published on Dec 18, 2019 synth4ever

"Demo of Octave The Cat analog synthesizer, featuring tweaking on various sounds and patches. Filmed at Paul's Boutique music shop (www.paulsboutique.ca) in Toronto, Canada.

Released in the 1970s, Octave the Cat is a monophonic/duophonic synth with 2 VCOs (2 sawtooth, 2 square wave, and 1 triangle) plus 2 sub-oscillators, 1 LFO, 1 VCA and 2 envelope generators (AR and ADSR). It also has some quirky modulation routings.

Both the original Cat and SRM Cat allow you to create some wild sounds including screaming leads, S&H patterns and noisy textures. It is a fun synth to explore as it offers a decent amount of sound design potential.

Octave The Cat is a classic synth similar in design to the Arp Odyssey, but with its own sonic flavor. If you have the chance to try one out, definitely give it a go."

Octave Cat | Cherry Audio

video upload by Cherry Audio

Introduction to Cherry Audio's Octave Cat - Hosted by Tim Shoebridge

video upload by Cherry Audio

Retropolis Pack For Cherry Audio Octave Cat

video upload by James Dyson

""Ready to unleash more ferocious power with the Octave Cat? With the Retropolis for Octave Cat preset pack, you can tap into the true potential of this beastly synthesizer and discover a whole mew world of sound. Created by masterful sound designer James Dyson, Retropolis offers 100 new presets showcasing the Octave Cat's impressive duophonic mode, dual-step sequencer, additional clawsome analog leads, brass tones, modern polyphonic sounds, and more. Not only does Retropolis offer a glimpse into the past, but it also instantly provides unique modern sounds for the music producers of today. Don't wait to pounce on this treat - add Retropolis to your Octave Cat synthesizer and start making truly fierce music today!"

Link to the Pack here https://store.cherryaudio.com/presets..."

Octave CAT by Cherry Audio - A detailed demo and tutorial

video upload by CatSynth TV

https://catsynth.com

Understanding the Octave CAT // Walkthrough of Cherry Audio's latest release

video upload by Starsky Carr



"Cherry Audio's Octave Cat is a virtual synthesizer instrument designed in collaboration with Carmine Bonanno, the original designer of the CAT synthesizer. The 1976 Octave Electronics CAT was an affordable alternative to expensive portable analog synthesizers of the day.

Adopt your Octave Cat today! https://cherryaudio.com/

Octave Cat retains all the growl of the original hardware's fat and savage duophonic sound and replicates the CAT's uniquely aggressive resonant four-pole 24 dB/oct filter. The Octave Cat feature set expands on the original with enhancements including 16-voice polyphony, sample and hold glide, and interchangeable skins.

A secondary panel view reveals dual eight-step classic-style sequencers and studio-quality effects featuring distortion, phaser, flanger/chorus, delay, and reverb. With support for MPE, over 300 expertly designed presets, and extensive MIDI mapping functions, Octave Cat will satisfy both vintage synth aficionados and professional modern music producers.

Octave Cat is provided in AU, VST, VST3, AAX, and standalone formats, and a free 30-day demo is available at https://cherryaudio.com/

macOS Requirements: macOS 10.13 or above. macOS 13 Ventura supported. 64-bit required. Native Apple M1 processor support, including Apple M1 Ultra. 3.4 GHz Quad-Core or M1 CPU with 8GB of RAM recommended.

Windows Requirements: Windows 7 or above (including Windows 11), 64-bit required. Quad-core computer with 8GB of RAM recommended.

Also available! Retropolis for Octave Cat Preset Pack (sold separately), featuring 100 new presets showcasing the Octave Cat's impressive duophonic mode, dual-step sequencer, additional clawsome analog leads, brass tones, modern polyphonic sounds, and more.

Octave Cat Features

- All aspects of the original CAT precisely modeled in exacting detail
- Over 300 presets
- Dual Panel Views with an authentic Main view for synthesis controls, and an additional FX/Seq panel with extended features
- Monophonic, duophonic, and polyphonic (up to 16 voices) voice modes
- Unison for mono and duo modes
- Two distinct VCOs with discrete wave, modulation, S+H, and sub octave settings; VCO1 with saw, triangle, and pulse with PWM, and VCO2 with square and saw waveforms
- Vintage-correct four-pole 24 db/oct filter, based on the original “cascaded OTA” SSM2040 filter with precise replication of The CAT’s unique resonance

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Octave Cat SRM Analog Synth

via this auction
"S/N for this beauty is B3257.
The mono-/duophonic 'Cat' is a 70s analog synth with an architecture designed very closely after the famous arp odyssey. The term 'SRM' stands for 'series revision model', so it is an improved version with additional interfacing options and ssm-based filter, there is also a 'SRM2' model in existence. The Cat features 2 vco's, one with pulse width modulation, both with a sub oscillator, vco1 and 2 can be adressed separately in the 'duophonic' keyboard mode, like in the Arp Odyssey. This technique uses the internal keyboard voltages, so this will not work with external control voltages. To add to the feature list, the Cat offers a mixable noise signal, a resonant 24db lowpass filter, one adsr-envelope and one ar-envelope with retrig option and furthermore a lfo as well as sample & hold. The lfo is permanently synced to the gate signal, so it automatically restarts when a new note is played - often useful, sometimes limiting.

The strongest point about the Cat is modulation, there is an abundance of modulation possibilities on oscillators and filter - pwm, sync and crossmodulation from vco1>vco2 and vco2>vco1 simultaneously and independently, all with very precise control. VCO1 can be switched out of the audio path, if things get too nasty. The various vco waveforms and suboctave signals are available in parallel, each one having their own slider - this comes in extremely handy with sync and cross mod sounds. The filter can be driven into self oscillation and is controlled by lfo, sample & hold or one of the envelopes and above all offers frequency modulation by vco1. Interfacing is possible via a cv/gate stereo jack, inputs for pedal control of vcf and vca and even an external signal input to the filter are available.

Soundwise, the cat's dominant impression must be 'powerful', things can get very thrashy and harsh, but there are always nuances where strange and beautiful timbres evolve, and there are enough control possibilities given to sensibly pinpoint a certain sound. Generally the sound is positively like 'ancient electronics', it can provide anything from deep bass, to powerful percussive sounds, to complex noisescapes, and it brings in a character all of its own."
auction description via dron.de
http://www.dron.de

Octave - Plateau - The Cat - Vintage Synthesizer SN A1748

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This is an Octave Electronics "The Cat" SRM Synthesizer. Great shape, all functions work, and it sounds great. Its in great cosmetic condition, just some scratches on the wooden side panels. Nice even keyboard, great feeling sliders, knobs & controls, strong & versatile filter, many features to create very deep and raw sounds with."

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Octave CAT SRM Model 1853 SN B4046

Note: Auction links are affiliate links for which the site may be compensated.

via this eBay listing

"A bold, duophonic analog classic with a reputation for massive tone and underrated flexibility.

This is the Mk II version of the legendary Octave CAT — a U.S.-built synth from the mid-to-late 1970s that offers two VCOs with saw, square, and triangle waveforms (VCO 1 only), cross modulation, oscillator sync, and mixable waveforms. With duophonic capabilities and a famously powerful filter section, the CAT delivers deep bass, snarling leads, and complex drones with ease.

Key Features:

Two VCOs with independent modulation routing

Oscillator sync, cross-mod, and sub-octave options

VCF with audio-rate modulation and noise source

SRM (Series Revision Model) Mk II panel layout with white-only graphics

Bypass switch, modulation source selectors, and fine-tuning control

Serial number B4046

This unit is fully functional and sounds incredible. Cosmetically, it shows normal wear for its age, but everything works as intended.

An increasingly rare and highly regarded U.S.-made synth that stands tall next to the Minimoog, ARP Odyssey, and Pro-One — but with its own unique voice and vibe."

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Seven Sounds from Octave CAT SRM II (HYPNOtized video)

video upload by Hanz Volt

"A little Tweaksploration of seven CAT sounds. Filtering the video thru a Sleepy Circuits Hypno
.
00:00 #1
02:10 #2
02:45 #3
03:18 #4
04:43 #5
06:11 #6
07:20 #7"

Vintage 1977 Analog non-SRM CAT Synthesizer

via this auction

"Rare, Vintage 1977 first generation, non-SRM, “Cat” Synthesizer, from Octave electronics... They did not make a lot of these but Octave released this analog classic - the Cat - during the era of the Minimoog and ARP Odyssey synthesizers. The Cat is actually very much like the ARP Odyssey, so much so that ARP had sued them in the late 1970's for cloning their designs. The Cat is a monophonic/duophonic analog synthesizer with 2 oscillators capable of square and sawtooth waveforms. VCO 1 also has a triangle waveform. Each of the waveforms can be played simultaneously and mixed together and there are additional sub-octave oscillators on each oscillator to blend new and interesting sounds.

Features of the Cat
2 transient generators = envelopes (gated, off and auto settings)
ADSR
AR
sample and hold (s&h) - noise or vco 1 source
pitch bend
octave shift
glide
LFO frequency
key control
poly - for 2 note capability
off
mono - both oscillators stacked on the same key
VCO 1 (voltage controlled oscillator)
fine tune
coarse tune
modulation 1 - sine LFO, square LFO, s&h
modulation 2 - ADSR, AR, VCO2
pulse width modulation - sine LFO, DC
sub octave waveform volume
sawtooth waveform volume
triangle waveform volume
square waveform volume
VCO 2
fine tune
modulation 1 - sine LFO, square LFO, s&h
modulation 2 - ADSR, AR, VCO1
oscillator sync on / off
sub octave waveform volume
sawtooth waveform volume
square waveform volume
VCO 1 audio on / off
VCF (lowpass resonant voltage controlled filter)
cutoff frequency
resonance (q)
modulation 1 - sine LFO, square LFO, S&H
modulation 2 - ADSR, AR, VCO 1
Keyboard control knob (off - 1 volt)
VCA control - ADSR, AR, bypass (for drones!)
Noise generator level
Power on / off switch with light
hi and lo audio outs
external audio in
glide switch in
vcf cv in
vco 1 cv in
series patch to slave
from master (this and the above are CV gate jacks)"

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Octave The Cat SN 1315 with Original Brochures, Warranty Card & Switched On Flex-Disk Guide & More

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"You are bidding on a vintage The Cat by Octave Analog Synthesizer, non SRM. This was bought from the original owner. It was just fully gone over and serviced by Dean of 5 Star DJ Center in Mesa, Dean the the most highly regarded Synth repair person in the west. This synth is in amazing condition and plays great. All knobs and switches are really smooth.

There are two new replacement knobs for VCO 1 modulation depth. There are numbers etched on the back panel.

Includes the Original Manual with the Original filled out Warranty Card, and 6 Octave Cat brochures. Also includes a Vintage Switched on Synthesizer book and sample record, book shows the basic sounds by presets for any synthesizer. Includes vintage gray cable.

Perfect working vintage synth that sounds great."

Note the original mailer envelope. Pretty amazing to see all of this together.

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