Demo of the 1017/1018 sequencer using Hans Zimmer's CMS 2500 system.

video upload by Phil Cirocco

Phil Cirocco of CMS: https://www.discretesynthesizers.com

"Just before shipping this system out to Hans Zimmer, I recorded this demo. There are several new modules in this system. The new 1017 sequencer and the 1018 sequencer expander. The 1017/1018 features an internal sequential switch that lets you switch between 2 separate sequences. The updated 1066 bipolar ladder filter with the added 5 input mixer. The 1015 quad resonator module in used on the lead sound. The 1020 dual quantizer prototype module is the odd looking module in the center. Please excuse the noodling."

The Alan R Pearlman Foundation's Year in Review

video upload by Alan R. Pearlman Foundation

"From a Compilation to a Concert Celebration, our year celebrating our namesake's Centenary has been amazing! Share our journey!

Music by Lisa Bella Donna & Shawn Johnson

Purchase Soul of the Machine at https://alanrpearlmanfoundation.bandc...

2025 Sponsors:
Korg, Cherry Audio, Moog Music, Manny Fernandez, Tom Rhea, Rosen Sound

2025 Partners:
Bell Tone Synth Works, CMS, CatSynth TV, EMEAP/MMT, Eric Crawley/Dan Gilbert, Interage MediaWorks, Knobcon, Korg, Anthony Marinelli Music, Antonus, Mashina Bristronica, NAMM Museum of Making Music, Vito Nandi, New England Synth Fest, Projekt Records, Steve Roach, Round & Wound, the SynthCave, SynthCube, Synthtopia, Synthetic Dreamscapes, The Record Co. (TRC), Sharon Wasko Designs

Thank you to all of our donors, volunteers, interns, friends and partners including (but not limited to) Alex Ball, Antonus, David Baron, Lisa Bella Donna, Chris Cardone, Jon Carin, Alison Cassidy, Nick Carlisle, Phil & Linda Cirocco, Mike Cushing, Tom Cusimano, Eric Crawley, Stephen DeJesus, Rich Formidoni, John Foxx, Dan Gilbert, Patrick Gleason, Herbie Hancock, Martin Gore, Rupert Greenall, Ryan Hawkins, Mary Lock, Mark Marshall, Machina Bristronica, David Mash, Steve McQuarry, Bill T. Miller, LaMar Mitchell, Chris Meyer, NE Synth Festival, Nicola Joss, Ruperto Ifil, Brian Kehew, Anthony Marinelli, Tom Piggot,TRC (The Record Co). EMEAPP/MMT, Mary Lock, David Mash, Matrix Synth, Michelle Moog-Koussa, Tony Norton, Jim Michmerhuizen, Mike Metlay, C. Carl Peters, Rob Puricelli, ProSynth Network, Drew Raison, Steve Roach, Sam Rosenthal, Drew Schlesinger, Don Slepian, Steve Smith, SynthTopia, the NAMM Museum, the MiDI Association, Real World Studios, Gerson Rosenbloom, Collin Russell, James Thirlwell, Pete Townshend, the Townshend Studio, and Andrew Ward"

ARP Foundation's Soul of the Machine CD & Download Update

If you haven't picked up a copy of the release, now might be a good time.

via the Alan R Pearlman Foundation:

Soul of the Machine is a Roaring Success!!!

We have officially sold half of our limited edition CD; we are also going to end our introductory 'Name Your Price' for downloads on BandCamp soon, so don't hesitate to purchase today!

Praise from BandCamp (Alan R Pearlman Foundation and Projekt Records )

"A tribute to the creator of my favorite music instruments. I Like the sound of the ARPs in classical electronic albums. Great record with many great contributions!"

"No favourite track, just indulging in the sonic wash of this amazing album. Just wonderful."

"...what an AMAZING collection!! ..."

"A ritual offering—ARP as oracle, muse, and monument. The machine has a soul. And here, it sings."

"It's hard to pick a favorite track off of this compilation... Lots of groovy music by a lot of artists.I had never heard of, but there are a few artists.I am familiar with. this is pretty groovy stuff... " "Awesome tribute and collection. Mr. Roach has somehow found time to be an archivist. would love a second volume. get this as both sampler and tribute..." Purchase from BandCamp

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Soul Of the Machine: A Celebration of the Life & Legacy of ARP founder Alan R. Pearlman

via the Alan R Pearlman Foundation

Available on Bandcamp here

Press release follows:

Kingston, NY— In 2025, the Alan R. Pearlman Foundation celebrates the centennial of its namesake, the electronic visionary whose marvelous ARP synthesizers changed the landscape of music forever. As part of the ongoing celebrations, the Foundation is announcing the release of Soul Of The Machine, a 36-track musical celebration of the man and his creations as interpreted by a diverse range of recording artists.

Soul Of The Machine is a 36-track collection of tracks old and new, covering everything from innovative electronic, dance, and space music to jazz, funk, and Latin pop, all featuring the signature sounds of classic ARP instruments. The collection includes everything from ARP’s first synthesizer — the massively powerful ARP 2500 modular system — to the instruments that rewrote the rules on how electronics and music came together. The 2600, Odyssey, Pro Soloist, Omni, and many more ARP instruments sing, cry, scream, and soar, in the hands of musical talents both legends and newcomers.

Soul Of The Machine is a treasure trove of musical exploration. Martin Gore’s “KIno" combines Depeche Mode’s signature rhythmic power with a uniquely lyrical and sweet atmosphere. “Mr. No” is a celebration of the classic proto-techno sound of John Foxx. Award-winning soundtrack composer Mark Isham showcases his signature pulsating energy and evocative moodscapes in the mini-suite “Musings – in Two Parts”. Lisa Bella Donna takes listeners on a journey into timeless wonder in the epic “Conclusions.” JG Thirlwell’s “Sphere” is a synth freakout ricocheting between ominous sci-fi atmospheres and searing beats. Panic Girl offers "Drifting Whispers," a somber and uplifting neo-retro journey into a past that never was.

Other artists on the collection include Michael Brückner, Phil Cirocco, Rupert Greenall, LaMar "Kronick" Mitchell, Jeff Rona, Drew Schlesinger & David Torn, Don Slepian, and many others, as well as tracks by the collection's curators Steve Roach and Chris Meyer of Alias Zone.

Famed ambient / electronic pioneer and ARP user since 1978, Steve Roach shares his thoughts on Soul Of The Machine: "In 2024 I had the honor of meeting Dina Pearlman-Ifil — the director of the Alan R Pearlman Foundation — in person. Over the course of several phone conversations we discussed ways to celebrate the centennial year of her father's life and his place in history. My idea for a compilation of music using her father’s creations grew out of those conversations, presenting a perfect way to directly experience the vast range of music that was birthed by the family of ARP synthesizers. This compilation is just a small taste of the universe Alan inspired in sound explorers and artists across a vast range of genres."

Steve mapped out the music so that CD 1 represents a sonic journey and CD 2 provides a showcase of the depth and breadth of what ARP synths can do. After both CDs were finalized, there were more tracks than room on the CDs. These additional songs are available as a bonus digital supplement to the physical CD set.

Says Dina Pearlman-Ifil: “I have long-dreamed of a multi-genre collection that would illustrate the depth and breadth of the possibilities of my father's instruments. This collection is the embodiment of what my father treasured most: The creative spirit. As the old ARP tagline used to say: ‘The most creative part of an ARP Synthesizer is you.’”

The Alan R. Pearlman Foundation is dedicated to the empowerment of young and burgeoning artists into the future. When we look at classical instruments born hundreds of years ago, we see that Alan Pearlman's synthesizers stand tall, earning their place in the evolution of musical history. Acoustic or electric, their common ground is the enduring inspiration for creativity and sonic innovation that inspires the hearts and minds of musicians, performers, and sound explorers worldwide.

Soul Of The Machine will be available for streaming on October 17, 2025. The special limited edition CD will be available for purchase in early-to-mid-November.

Proceeds go the Alan R. Pearlman Foundation

The Alan R. Pearlman Foundation is a 501(c)(3) not-for-profit organization.
Our mission is to celebrate the legacy of inventor, musician, entrepreneur and engineer Alan R. Pearlman, by making his innovative inventions publicly accessible, and by inspiring future generations to imagine and create.

ARP Centennial Compilation Concept: Steve Roach
Project Directors: Steve Roach, Chris Meyer, and Dina Pearlman-Ifil Mastered by: Robert Rich

Cover concept and design by Dina Pearlman-Ifil, production by Sharon Wasko

This compilation wouldn't be possible without the support of our incredible sponsors: Cherry Audio, Korg USA, Moog Music and Steve Roach.
Also HUGE thanks to Chris Meyer / Alias Zone, Mark Marshall / interage.com for all things web, Dr. Mike Metlay/ atomicwords.net for creative input on the liner notes, and Sam Rosenthal / Projekt Records.

Purchase from BandCamp: https://alanrpearlmanfoundation.bandcamp.com/album/soul-of-the-machine...

ARP 2500

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

via this Reverb listing

This appears to be the one previously listed on eBay featured here.

This new listing features additional pics and a new description including a list of the modules.

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ARP 2500 Modular Synthesizer w/ Pair of Fully Loaded Wing Cabinets

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

via this eBay listing

This one was spotted and sent in via
M Me.

"Vintage ARP 2500 Modular Synthesizer system. Accompanying the ARP 2500 main cabinet is a pair of fully loaded wing cabinets. The main cabinet and keyboard were fully restored by Phil Cirocco (CMS) around 2011 as well were most of the modules in the wing cabinets. However the system has not been powered up or played since 2018 when I moved from Los Angeles to Tucson Arizona. It was working perfectly in 2018. Since sitting for 7 years the system will most likely need some small service to get it back to perfect. IT IS UNTESTED AND WILL NOT BE TESTED. IT IS BEING SOLD AS IS.

The previous service was meticulously done to satisfy my serious demand for the system to remain as original as possible. No modifications were done and all parts replaced with original or appropriate parts. The system is hyper clean in person and was clearly babied. It was used on notable lp's. You may live a 100 more years but will likely never find a better more complete ARP 2500 for sale. This system is priceless and was the most expensive new instrument when it was produced in the early 1970's.

I collected and played many Moog, ARP and Buchla modular systems. However owning so many systems became a burden. As well, switching between using Moog, ARP and Buchla took too much bandwidth. I sold all of my Buchla systems and this is my last and best ARP piece from my massive collection. Time for someone else to own it

CAN BE PICKED UP IN TUCSON AZ OR I CAN DELIVER TO LOS ANGELES CA"

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ORIGINAL ARP 2600 SN 26597 - Pro-Serviced w/Restoration by Phil Cirocco

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

via this listing

Additional Analog U.S Listings

Also on eBay

"This one is in good cosmetic condition and working 100%. This is for the synth only and not the keyboard. It has been professionally serviced and with a lot of restoration by Phil Cirocco of CMS. As some of you know, Phil is highly respected and is the premiere ARP specialist. This ARP 2600 is a V3.0 made on the 23rd week (June) of 1973. It has some unusual markings for V3. As you can see, it has the G-Clef sticker, but with the Tonus logo Silkscreen. It has the 15.5" panel which is correct for a V3.0, but has the squared speaker grille instead of the oval. All of this is cosmetic, however. It will be properly packaged when sold and will arrive in the condition as stated. Proof of the actual shipping cost will be provided if needed. This unit is listed as a USA sale only, but I am willing to ship to other countries. Not sold as-is!

Cosmetically - Nothing is mint, minty, super mint, etc., in my opinion, and this one is no exception. There are plenty of imperfections on this one as you can see, but the synth itself looks very good in my opinion. Please check out the photos. The handle was replaced with a new one, it has new Switchcraft washers, and all the jack nuts were ultrasonically cleaned.

Internally- Apart from any repairs (there were many), the unit has been disassembled and cleaned, all of the original sliders cleaned and re-lubed, the power supply has been rebuilt, it has a new Accutronics reverb tank, several encapsulated modules replaced, some switches replaced, several connectors cleaned & tightened, and the main out jacks replaced. There was a lot done to this unit so this will likely be updated."

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ARP Foundation ARP 2500 Now Available for Public Use

The first ARP 2500 available for public use, previously posted here, is now available.

via The Alan R. Pearl Foundation

KINGSTON, NY, MAY 24, 2024– The Alan R. Pearlman Foundation proudly announces that their recently-acquired ARP 2500 synthesizer has been restored, fitted with upgrades, and is now available tom the general public at The Record Co. in Boston, MA. This ARP 2500 is the first and only publicly-accessible example of its kind in the USA.

Thanks to generous funding from donors and benefactors, and in line with the Foundation’s mission, this exceedingly rare 2508 Wing Cabinet is now available to everyone. Part of the expansive 2500 system, the 2508 is a self-contained synthesizer including original oscillator, filter, sequencer, envelope and mix-sequencer modules, interlinked by the 2500’s flexible patch matrix system. It also contains a unique new oscillator designed for the Foundation by Phil Cirocco of Cirocco Music Systems, who also restored the 2508 to pristine working condition. The synthesizer has been further enhanced with a protective cover as well as a new custom-made keyboard from synthesizer.com.

"The day has finally arrived," said Dina Alcalay Pearlman-Ifil, founder and Executive Director of the ARP Foundation and daughter of Alan R. Pearlman. "Thanks to our generous donors, colleagues, and friends, our 2500 got the TLC it needed to make it feel and sound brand new again. It’s ready to inspire the next generation of musical explorers, just as my father intended. We hope this will be the first of many.”

The 2500 is available by appointment. Users seeking to schedule hands-on time must contact The Record Co. at therecordco.org/reserve-space. Previous modular synthesizer experience is strongly encouraged, however, users will receive an email with resources designed to familiarize them with the 2500’s workflow, empowering them to make the most of their time with this legendary synthesizer.

The ARP Foundation continues its work with contributors, collaborators, vendors, manufacturers, venues, and synthesizer owners to provide musicians with access to vintage ARP synthesizers to explore the endless possibilities of electronic music. The Foundation relies on donors to continue its mission, and encourages everyone who understands the importance of music education to visit alanrpearlmanfoundation.org to learn more and pledge their support."

ALAN R. PEARLMAN FOUNDATION ANNOUNCES GIVING TUESDAY INDIEGOGO CAMPAIGN KICKOFF

Press release follows.

The Foundation Announces the First Publicly-Accessible ARP 2500 in the USA

STONE RIDGE, NY, November 28, 2023: Thanks to a generous donation by former ARP employee Bruce McLendon, the Alan R. Pearlman Foundation is welcoming a 2508 Wing Cabinet into its collection of legendary ARP synthesizers.

This 2508 cabinet was assembled as a complete self-contained 2500 synthesizer featuring original oscillator, filter, sequencer, envelope and mix-sequencer modules, all linked by the flexible 2500 patch matrix system. It also contains a new oscillator module designed and built for the Foundation by Phil Cirocco of CMS (Discrete Music Systems).

The ARP Foundation is launching an IndieGogo campaign to raise funds to complete the restoration of what will become the only publicly-accessible ARP 2500 synthesizer in the USA, and to bolster its ARPs For All Program in preparation for the 2500’s arrival.

View the Campaign!

About the Alan R. Pearlman Foundation:

The ARP Archives & The Alan R. Pearlman Foundation is a 501(c)(3) non-profit organization.

Its mission is to celebrate the legacy of inventor, musician, entrepreneur and engineer Alan R. Pearlman, by making his innovative inventions publicly accessible, and by inspiring future generations to imagine and create. Alan R. Pearlman was a pioneer in the electronic music world, and the founder of ARP Synthesizers, a leading synthesizer manufacturer in the 1970s. The Foundation is dedicated to preserving his legacy, and is committed to creating opportunities for emerging artists, sound designers and electronic music entrepreneurs.

Among their missions is enabling artists and designers to use rare, vintage ARP synthesizers, as well as recording and production equipment - which they’ve successfully accomplished with the ARPs For All Program in cooperation with their partners at The Record Co. in Boston, MA

---

Side note for synth history's sake: The New England Synthesizer Museum supposedly had the first ARP 2500 on display, but it was non functional when I visited, and the museum no longer around. The owner/curator David Hillel Wilson passed away back in 2010.

ARP 2600 with 3620 Keyboard

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

via this auction

"Single-owner ARP 2600 with a 3620 keyboard. Purchased in 1975, this synth has been meticulously restored and cleaned up in 2020 by Phil Cirocco over at CMS tech service in Savannah, GA. It was very dusty and Phil cleaned it up and added a few mods to it. The modifications added are:

1/4" input jack for the PreAmp

1/4" Output Jacks

IEC power jack to replace the original hard wired power cable

Everything on the synth is 100% functional.

The one problem is that the plastic slider for the pulse width of VCO 3 has broken off, but the parameter still works.

There is no Lid for the ARP itself, but the keyboard does have its lid. For this reason, I'm not interested in shipping.

The 3620 keyboard is in rough shape around the key bed. Decades of use have eroded all of the padding that used to exist under the keys, so playing the keys is very loud and clacky. Some of the keys are yellowing and chipped. Aside from that, absolutely all of the parameters and jacks work on the keyboard. The pitch bend knob is not original"

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CMS 1000 SERIES ARP 2500 Inspired Eurorack System

This one was spotted and sent in via Soviet Space Child.

Note CMS fully restored this vintage ARP 2500 posted back in 2007. Phil Cirocco of CMS / Discrete Synthesizers is an ARP specialist. See the CMS label for additional posts. via Discrete Synthesizers aka CMS

Left: "The photo shows a suggested arrangement of modules for a 12 module CMS Euro-Rack system. This is Phil Cirocco's personal machine.

UPDATED - 1/20/2023

1000 SERIES MODULE NEWS"

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ARP 2600c Grey Marvin 1971 with 3604c Keyboard

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

via this auction

"The rarest of the rare… A fully restored (by Phil Cirocco) Arp 2600c / 3604c. It works as-factory, and will be delivered in perfect working order to its new home.

If you are looking at this, you’ve likely heard about the Teledyne chips… If not - this has them. None of the suitcase versions do to my knowledge - and the sound that made the Arp 2600 so ubiquitous is largely in those chips… This sounds utterly incredible, and yes - different to the later model 2600’s and very different to the late model Korg and Behringer 2600’s though they make a decent substitute!"

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Reminder: THE ARP 2600 SYNTHPOSIUM is Coming Saturday, September 18TH

This is a follow-up to this post. You can purchase tickets at the event page here. For Group rates and free scholorship tickets see the admission section below.

"Join the Alan R. Pearlman Foundation online Saturday, September 18th, for a virtual Festival and Fundraiser honoring the 50th anniversary of the mighty ARP 2600, hosted by The Record Co. in Boston, MA!

This online celebration will feature live performances, live panel discussions, a 2600 synthesizer clinic, premiered videos of performances and interviews, special guests, a silent auction, and more. All proceeds will benefit the Alan R. Pearlman Foundation and the ARPs For All project.
Who
Panelists include:
Alsún Ní Chasaide, Alison Stout, BT, Brian Kehew, David Baron, David Friend, David Frederick Jr, David Mash, DJ Cherish the Luv, EMEAPP, Jack Hotop, Jennifer Hruska, Jean-Michel Jarre, Jon Carin, Korg, Lisa Bella Donna, Marie Ann Hedonia, Phil Cirocco, Richard Boulanger, Richard Devine, Steve McQuarry

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1973 ARP 2600 with 3604 Keyboard serviced by Phil Cirocco of CMS

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

via this auction

"ARP 2600 and ARP 3604P Keyboard serviced and restored by Phil Cirocco of CMS. New power and 6 pin interface cable. The tolex shows some wear but is in very good condition for being 50 years old."

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ARP Odyssey Model 2813

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

via this auction

"Model 2813 Arp Odyssey. Upgraded filter and Power-One HBB15-1.5-A ultra-stable linear power supply. I still have the original PSU (which I will include) as well if you'd want to convert it back to original. All tantalum caps have been removed and upgraded (except for on the original power supply which is not installed).

Never toured of even gigged with, it's been a home studio queen ever since I acquired it in the early 2000s.

Serviced around 2006 by Phil Cirocco of CMS modulars when he was still in Bethlehem, PA. All input and output jacks have been converted to 1/4" Switchcraft. New key bushings on every key around the same time Was just serviced and calibrated by Bell Tone Synth Works in Philadelphia (4/17)."

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Arp 2600 mk3 Black and Orange

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

via this auction

"Excellent condition ARP 2601 with its matching 3620 keyboard. Outside of minor white spots on the keyboard lid (not the keyboard itself, as shown on pics) this Arp is in beautiful condition. Its electronic condition is matching the cosmetics: it was thoroughly serviced in 2014 by Phil Cirocco at CMS Discrete Synthesizers and has not needed any service since then. All functions work to specs. Phil Cirrocco is the acknowledged expert in ARP service and repair.

The original owner made two modifications to the original specs:

1) On the keyboard control panel there is a small red toggle switch in the upper right corner and a red momentary push button next to the vibrato sliders. With the switch in the “off” position the LFO/vibrato controls work in standard fashion. When the switch is in the “on” position the vibrato delay is replaced by push button activation. Pushing the button engages the LFO/vibrato depth settings instantly. This allows for expressive use of vibrato while playing.
2) There are two additional jacks on the lower left corner of the console, and one additional jack on the keyboard control panel next to the connector cable. These allow for an optional ground cable (included) to connect the chassis grounds between the keyboard and console. In some studio situations this improved pitch stability. It is entirely optional."

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ARP 2500 Model 2002 Vintage Modular Synthesizer Cabinet Serviced by CMS

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

via this auction

"Used vintage ARP 2500 Model 2002 synthesizer cabinet.

Serial no. is 008

unit was serviced by Phil Cirocco at CMS several years ago, fitted with modern linear analogue power supplies

woodwork refinished

includes power module model 1002

currently configured to run at 220 volts

original split music keyboard available soon in a separate auction.

Very rare opportunity especially if you already have spare modules or wish to fit clone modules

will ship worldwide"

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Vintage ARP Odyssey 1972 Mk. I + Full Patch Points + Cirocco Mods!

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

via this auction

"Arp Odyssey Mk. I 1972, full patch points + Cirocco (C.M.S.) mods

Mods too many to list, but include (highlights):
Full patch points -- all main section outputs and all slider inputs
"Turbo" envelope switch, for true snappy (2600 style) envelopes
LFO free run
Back panel CV/gate controls
External audio input
A full set of mods can be seen from the picture. Mods were performed by #1 worldwide Arp tech Phil Cirocco (the guy who fixes/restores 2500's).

I should mention that another design quirk of the original Odyssey -- the delay between VCA and VCF gate times, has been eliminated!

Without this critical fix, no matter how fast the envelope times, it would have sounded slow due to the VCF gate delay. Not so here, the envelope is ultra-fast with the "Turbo" setting, and also sounds better and cleaner with the normal setting. This is what is meant by "true 2600 style envelopes" -- multiple coordinated modifications here really take this synth into a completely different category.

What you get is the 'best of both worlds'. You get additional features and sound of the early 1970's Mk. I Odyssey (much warmer early 1970’s oscillators, sweet filter resonance, hard sync), with the back-end snappiness and sonic character of the Arp 2600. On many patches the result actually sounds better than the stock 2600."

CMS 2500 Euro Rack Module Demo - 12 module system

Published on Mar 16, 2020 Phil Cirocco

"Here is a quick demo of the newly released CMS Euro Rack 2500 modules. This is my personal 12 module system. The audio quality and noise levels are actually superior to the original ARP 2500 system due to better layout of the circuit boards and no matrix switches. The flagship module of the series is the 1047 Colin Multi-mode Filter. Go to discretesynthesizers.com for more info."

CMS 2607 demo - Sync, PFD and high-pass filter

Published on Feb 22, 2020 Phil Cirocco

"Phil Cirocco demonstrating the CMS 2607 just before shipping it out to a customer in San Francisco. The patch breifly highlights the built in sync circuit. Later in the video, the High-pass filter output is fed through the Post Filter Distortion circuit (from the ARP Centaur). The two 1/4 inch cables at top right are plugged directly into the stereo input of the camera. No post production or processing. The reverb you hear is the internal spring unit. discretesynthesizers.com"

Update:

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