ARP Omni 2

“Good condition, some scratches and damage to the paint, see photos. The original ratty leather side panels have been replaced with new walnut hardwood panels. See photos for condition–more photos on our website.

Sliders refurbished – It’s rare that Synthchaser will agree to restore the original sliders in these synthesizers, but when he does, he does it right! The sliders have been desoldered, disassembled, ultrasonically cleaned, lubricated, reassembled, tested and reinstalled. All original slider caps are present!
Power supply rebuilt – All tantalum and electrolytic capacitors in the power supply have been replaced, and high quality, high temperature 105 deg C capacitors have been used for the power supply filter capacitors.
All tantalum capacitors replaced – The tantalum capacitors in ARP synths are ticking time bombs. All of the over 100 tantalum capacitors in this synth, including the power supply and filter submodule, have been replaced with electrolytics to help provide stable operation for years to come.
Synthchaser 4075 Filter Enhancement Kit Installed – The ARP Omni uses the same 4075 filter submodule found in the Odyssey, Quadra, Avatar, and Pro DGX. This has been recapped, and enhanced to provide superior frequency response.
Keyboard rebuild – New key bushings installed, buss bar & key contacts cleaned and adjusted, keybed leveled, keys ultrasonically cleaned
Synthchaser Master Oscillator module – the failure prone archaic master oscillator circuitry of the Omni has been removed and replaced with this stable and precise master oscillator which will keep the keyboard in tune.
Oscilloscope calibration – Fully calibrated to factory spec using oscilloscope and frequency counter.” Click here to visit listing on eBay

ARP Omni 2

“Here’s a vintage ARP Omni 2 Model 2473 in very clean condition. I don’t know anything about these, but it seems like it’s working pretty well. I’m sure it will need some TLC so it’s being sold AS-IS with no returns.” Click here to visit listing on eBay

ARP Omni 2 Project Machine

“This is a vintage Arp Omni-2 that will be sold as is for parts or needs repair. The keyboard powers on but passes no audio and sliders are seized, also the 4th D key is broken. It is a vintage synthesizer the has been used so it exhibits cosmetic wear. There are replacement caps included for sliders. I can not repair so I am selling as is.” Click here to visit listing on eBay

ARP Omni 2

“PHYSICAL CONDITION: Very Good – In great condition. This is a vintage item so there are some signs of wear. Most of the slider caps are missing but all sliders are intact. The keys are intact and play fine but as seen in photos they are not entirely even, which is typical of these ARP synths. Otherwise, everything is intact, looking very nice, and ready for more use. The overall physical condition is excellent. WORKING CONDITION: Very Good – All keys are working though the lowest C squeaks a little when pressed rapidly, this is mechanical and not heard through the audio outputs. All push-button switches and their LED indicators are in perfect working order. All controls in all sections are working great. Output and control i/O are working great as well. Overall working condition is very good” Click here to visit listing on eBay

ARP Omni 2

“ARP Omni 2. Vintage keyboard. For repair or parts only. Condition is “For parts or not working”. Shipped with UPS Ground.

Unit powers up and produces sound. The synth side sounds fine, but the strings side has problems. Will need work.” Click here to visit listing on eBay

ARP Omni 2

“ARP Omni-2 Vintage Analog String Machine Synthesizer With Manual. All keys are working in Violin and Viola setting, Only the 4 lowest notes will play in the bass setting. It has been partially restored (Capacitors checked and the bad ones replaced) Ready for the next owner to complete restoration. Condition is Used.” Click here to search for synths on eBay

ARP Omni 2

“1979 ARP Omni-2 Vintage Analog String Synthesizer + Hard Case Omni

The top, Fast/Slow Release slider doesn’t effect sound as much as I would expect. But, maybe it’s supposed to work like that. Top key is a little higher than the rest.

Includes Hybrid hard case.”
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ARP Omni 2

“This keyboard has been recently serviced.

The String and Synthesizer sections work on all 49 notes. Phase Shifter is also working.

However, the Bass section does not work.

All tantalum capacitors have been replaced with aluminum electrolytic capacitors.

(The old tantalum capacitors are a common failure for these Keyboards.)” Click here to search for synths on eBay

ARP Omni 2 Project Machine

“So I bought this about 6 months ago and am not using it. It’s working pretty well for a synth from the late 1970’s. As you can see from the invoice picture it was gone over and updated quite a bit by Synthchaser in California. This was before I purchased it. there are still a few issues I’ve noticed. There is sometimes a light click when keys are depressed coming through the amp. The string section seems just a little noisy, but this could be the era in which it was made? Not sure. Also the string section will occasionally cut out, but I’ve tracked this down to a wiring harness which I will mark. Not sure if it’s a wire or the plug. So it needs a little attention and it does have some cosmetic rust and wear, but overall it’s a pretty cool vintage board. I just don’t have the time for it. ” Click here to search for synths on eBay

ARP Omni 2

“Vintage ARP OMNI-2 Analog Keyboard Synthesizer
We plugged it up to a speaker and everything seems to work, there is some static, maybe a loose connection somewhere but it does work, it may need some work done to it, possibly something needs to be replaced. We do not know enough about it to say there are no issues with it but everything on it seems to be in working condition. Most of all the knobs are missing!”
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ARP Omni 2

“I’m selling my 1970’s vintage analog string/polyphonic synthesizer – the ARP OMNI II. If you are familiar with The Cars “Good Times Roll” or Joy Division “Love Will Tear Us Apart” you know the legendary sounds the OMNI II is capable of.

This unit was fully serviced and electronically restored by Synth Chaser in San Diego, CA. Nathan is one of America’s foremost experts on ARP OMNI repair (as well as other vintage synths) – and posts videos of his repair and restoration work (including this one) on Youtube.

Besides all the work done to bring this synth back to original ARP 100% glory I also had the optional 4075 filter upgrade done, as well as the SynthChaser Orange LED slider kit installed. Very helpful seeing all the slider settings onstage, having the sliders move easily. Plus having light-up LEDs that match the ARP color scheme looks cool.

As you can imagine, this unit sounds amazing – haunting and period correct.

Here is the rundown of this Omni II and what was done:

ARP OMNI 2 S/N #24734115 (OMNI II)

All polarized capacitors recapped – 106 caps total.

SynthChaser Orange LED precision slider kit upgrade.

Key bed refurbished: buss bar cleaned, key contacts adjusted, key bed leveled, bushing kit installed.

Switch board troubleshooting and repair. XLR jacks replaced.

Optional 4075 Voltage Controlled Filter Enhancement & recap performed

Two switches replaced.

All LED’s replaced to provide uniform brightness.

Keys removed, cleaned and leveled.

Synthesizer calibrated to factory specification.

Comes with vintage road case.” Click here to search for synths on eBay