MATRIXSYNTH


Friday, February 06, 2015

ARP Omni Mark I Synthesizer SN 24832650

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

via this auction

Some heavy duty packing pics below.

"This Omni has been restored to full working order, and all of the official ARP Field Service fixes have been applied. Every single one of those craptastic blue tantalum capacitors have been replaced with brand new electrolytics. All failing or suspect IC’s have been changed, and a higher performance OTA (CA3046) has been used in the VCA. Don’t worry, this only improves noise and bleed through. All of the sliders have been broken apart, cleaned and re-lubed with Fader Grease. They travel nice and smooth. New rubber slider caps have been fitted to the slider controls in the synth section. The wood sides have been removed, sanded, restained, refinished, and rubbed into smooth luster.

This thing sounds awesome, and can produce some serious Joy Division, Cars, New Order, Kraftwerk and Disco. I’ve played and repaired many string synths and many Omni’s, and to me, nothing really compares to the Omni (I’ve grown to like it more than the Solina.)

It includes the strings that sound very similar to the famous Solina, and a polyphonic synth section with the ARP 4075 filter made famous by the Odyssey and the Quadra. The original 4075 suffered from a resistor miscalculation that resulted in a reduced filter sweep range (only to 12KHZ.) But don’t worry, this one has had the standard fix applied to restore the full filter range. And it sounds wonderful.

Also included on the Omni is a monophonic bass synth. The Omni 1 was unique in that the bass is routed through the 4075 filter. (The Omni 2 has a boring preset filter for the bass.) So, this thing can also produce big, usable, analog bass sounds.

And it’s fully polyphonic. Well actually, paraphonic…meaning the filter in the synth section is retriggered for all notes on each key press. This actually results in a chord pulsing effect that’s hard to produce on a standard poly synth. The strings of course don’t go through the filter, so that portion is full poly.

All functions work. Every key works. No ghost or drone keys are present that usually plague these units. And, you don’t have to worry about them ever cropping up like you would with a non-restored Omni. This thing looks and sounds great and is ready for the studio.

But, as good as it is, some there’s some things that were left alone, or only partially fixed. These are:

There are of course a few surface scratches on the metal case. No gigged instrument from the 70’s (or musician for that matter) is free from the scars of bad decisions on the road…

The Omni has a Pratt-Reed keyboard that would normally need new bushings. I couldn’t confirm that this had been previously serviced, but the keyboard on this thing is in excellent shape. It plays like a dream, and as you can see in the photos, the keys are very will aligned. (The obvious sign of worn out bushings are keys resting at grossly different heights, yielding a wavy keyboard. Take a look at some of the other Omni’s on Ebay and notice the wavey teeth! Not on this baby!) As such, the keyboard bushings were not replaced.

The Poly Synth buttons sometimes (not often but I want to mention everything!) trigger each other when pressing. This is a mechanical effect, not electronic. I choose not to replace these switches. You can no longer find this types of push buttons. In the past, if I have one that has failed completely, I drill out the existing button and fit a smaller tact switch inside. This allows the button to maintain its original look, but fixes its functionality. The problem with this, is that it gives the button a different “feel”. I like to keep things as original as possible, so I choose not to perform this service.

This instrument is wired up for 110volts. But the transformer can be set to 220v. If you want me to change this before shipping, let me know.

If you want an Omni that will look and sound at home in the studio, even a museum, this is the one for you..."

NIIO Analog Room Audio Processor Demo with Roland TR-8


Published on Feb 6, 2015 perfectcircuitaudio

Demo starts at :44

"This video gives a basic demonstration of the NIIO Analog Room audio processor. Enjoy!

Buy NIIO Analog products here.

KORG INC and Noritake Co., Limited Release Innovative Vacuum Tube: the Nutube


This one made the rounds during NAMM but I initially skipped it as it is not directly synth related. It may however be of interest to synth DIYers.  The following is the press release from KORG.

"KORG INC and Noritake Co., Limited are proud to announce the successful development of the ground breaking technology, Nutube, a new miniaturized and high performance tube. In cooperation with Noritake Itron Corporation, KORG INC. has developed the Nutube to offer incredible reliability and efficiency while still generating the same rich harmonics which vacuum tubes are known for. The Nutube 6P1 featuring this innovation will be on display at the Korg USA Winter NAMM Booth.

KORG has used vacuum tubes for many years in products such as VOX-branded guitar amps and effect units, KORG-branded dance/DJ products such as the electribe MX/SX and keyboards such as the SV-1. Vacuum tubes have played a major role in shaping the sound of VOX and KORG products, and have been a crucial element in their distinctive character.

As with previous vacuum tubes, this newly-developed Nutube is structured with an anode, grid, and filament, and operates as a complete triode tube, generating the same rich harmonics that are distinctive of conventional vacuum tubes. By applying technology from Noritake Co., Limited's vacuum fluorescent displays, the structure of the vacuum tube has been modified, dramatically reducing its size and allowing it to consume less power. Production is carried out at the cutting-edge Japanese production facility of Noritake Itron, a subsidiary of Noritake Co., Limited., significantly raising the product quality in comparison to previous vacuum tubes by boasting the following features:

Power Consumption:
Miniaturization dramatically reduces power consumption, allowing the Nutube to operate using less than 2% of power required by conventional vacuum tubes and making it easy to power the unit on batteries.
Compact.:
The Nutube occupies less than 30% of the volume of a conventional vacuum tube. Its small size and low thermal output allows it to be easily mounted directly on a high-density circuit board without using a socket
High reliability and long life.:
The unique design and state of the art Japanese production facility ensures the Nutubes are built to the highest standard and offer up to 30,000 hours of continuous operating life. The high reliability means that it can be attached directly to the circuit board with confidence knowing that it will not need to be replaced regularly like a 12AX7.
About Nutube 6P1
"As an electronic component, a vacuum tube has the disadvantages of being larger than a transistor, having a shorter lifespan, and a higher power consumption, and although many people like the sound of a vacuum tube, historically they have been more difficult to deal with,” stated Fumio Mieda, KORG INC’s longstanding developer who was involved in numerous KORG synthesizers including the MS-20 which appeared in 1978. “The Nutube sets us free from these many limitations, making it possible for us to think about using it in new products,” added Mieda.

Most manufacturers stopped producing vacuum tubes in the 1970s and there haven’t been any notable advances in the field during the past fifty years. However, thanks to the Nutube 6P1, it is now easier to obtain a vacuum tube sound when amplifying musical instruments and other audio signals.

Noritake Itron Corporation, a group company of Noritake Co., Limited, pioneers of vacuum florescent displays says “By creating a miniaturized and high performance replacement for traditional vacuum tubes, Noritake Co. Limited expects products using the Nutube will create a renewed appreciation for the inherent qualities of vacuum tubes amongst users.”

The Nutube 6P1, currently being developed, takes advantage of KORG's experience in musical instrument production, and is tuned for optimal effect to generate rich harmonics when used with a musical instrument. Products using the Nutube are currently under development, with announcements expected during 2015. (Patent applied for.)"

Playing with Elements (Mutable Instruments Elements and Clouds)


Published on Feb 6, 2015 GruithuisenCityMan

"Playing with Elements (Mutable Instruments Elements and Clouds)

Hello ! My name is Frederic Gerchambeau. I have made this movie and this music. The music has been made using an analog modular synthesizer including an Elements and a Clouds from Mutable Instruments.
Enjoy !"

Syndrum CM Analog Drum Synth SN 02683 with Original Box & Original Price Sticker

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

via this auction

"This is a super rare Syndrum CM drum synthesizer. Serial #2685. Comes with the original Syndrum box and original adapter!
A drum synth with sustain, sweep, tune and volume control.
The Syndrum is in good working condition. A couple of the pots can be just a little bit scratchy sometimes. (nothing major, I'm sure it can be solved with some cleaning if it bothers you)

Cosmetically, there are signs of wear here and there. The mesh has some stains(see photo).
The box itself has wear. ( it is 35 years old...). It still holds the 1980 price tag...
Overall in nice vintage condition."

Roland MC-202 MicroComposer SN 340300 with Original Box

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

via this auction

Sequential Circuits Pro One SN 4246

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

via this auction

Circuit Shaman Vert Teaser


Published on Feb 6, 2015 Circuit Shaman

"Just a quick and dirty video that I snapped as I am getting ready to film the demo videos. Keep a close look at the bottom left corner ;)"

Demo of Casio CZ-1 Sounds


Published on Feb 6, 2015

Demo starts at 2:41. Note Casio recently released the CZ synth engine for iPad: CZ App for iPad - CASIO COMPUTER CO., LTD.

"WARNING! This is a run through of 64 sounds loaded into my Casio CZ-1 Phase Distortion Synthesizer. This is NOT an exciting video. More than half are presets from the instrument, and the rest are modified presets, and original patches. Nothing fabulous for patches, but it does give you a high resolution sound sampling of the CZ synth, which I happen to love (and unfortunately haven't done much with in the last 5 or 6 year).

I would suggest just letting it run in the background and listening to it, because there's nothing really to watch.

For me, the more unique patches this synth can cough up use the ring modulation and the fake resonant waves. It's a very unique synth that's fairly easy to program, and I FIRMLY believe had it been released before the Yamaha DX-7, there's a good chance it would have sold more units than the DX-7. It's just that much easier to program and capable of a wider variety of usable sounds. That being said, I'm still a big fan of FM synthesis, it's just not as "user friendly" as implemented by Yamaha's line of DX synths.

And lastly please excuse all the mediocre keyboard playing. I would say I play AROUND with keyboards...I don't actually play them! Cheers!"

KORG MS-20M,MS-20 mini,MS-20 Kit ,SQ-1,Volca Sample


Published on Feb 6, 2015 yasushik1977

"KORG MS-20M,MS-20 mini,MS-20 Kit ,SQ-1,Volca Sample と BEHRINGERのコンパクトアナログミキサーのみで1発録り(撮り)
インスタ動画等ではついついモジュレーション地獄のようなものをアップしてしまいます­が、まずはとてもシンプルな音色で普通に演奏しています。SQ-1の再生方向もほぼス­トレート固定。各パートにもエフェクト等は一切かけず、録音した波形に映像編集時にリ­ミッターを使用したのみです。1発録りでもせめて音はパラ録りするべきでしたね(笑) 空間系エフェクトのかわりにカメラのマイクが拾ったモニター音を少し混ぜることで若干­広がりを演出しています。

http://www.net-yk.org/
Music,performance&produced by Yasushi.K"

Korg SQ-1s on eBay
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