THE CMS 2607 - A HIGH QUALITY RACK MOUNT 2600

Additional features of the CMS 2607:

6 spaces high, yes! 10.5 inches.

Heavy duty .100 thick, precision machined front panel.

Sturdy, custom designed rear enclosure.

Octave switches.

Sync switch that syncs VCO-1 to VCO-3.

VCO2 and VCO3 produce all 4 waveforms!

Uses the discrete wave-shapers from the 2500 - they sound much better and produce better shaped waveforms.

Both VCO-2 and VCO-3 actually produce a sine wave, not a rounded triangle like on the ARP 2600.

PWM on all 3 VCOs.

The famous CMS 4012 CX filter comes standard issue. Better sounding but true to the original design of the early 2600 filter.

The filter has 2 modes: CMS and ARP. The ARP mode maintains the original factory 4012 circuit. The CMS mode features the CMS 9004 dual mode filter.

The VCF has an additional High pass / Pseudo-notch out depending on the mode switch setting.

Improved AR generator circuit.

3 position time range selectors on both envelope generators.

CMS 4019CX high slew rate VCA is standard equipment.

Voltage processor 2 becomes the Post Filter Distortion circuit from the ARP Centaur when the PFD switch is engaged.

Schmitt trigger or trigger detector for externally triggering Envelopes, SH, Etc. Doubles as a distortion device.

Separate Ring Modulator, AC / DC switches facilitate a 2nd VCA.

A dedicated LFO with sine and square outputs.

S/H clock has sine and square outputs for additional LFO modulation.

Improved Electronic Switch has: External trigger jack, clock trigger switch, manual advance, alternating gate output mode.

17 inch, 3 spring, reverb tank with overdrive circuit - now internally mounted.

Pedal circuit with front panel output jack.

Inverted ADSR output jack.

Rear CV buss and Gate buss inputs.

Duplicate main audio output jack on rear panel - 1/4 inch.

Convenient front panel CV and Gate output jacks. Can be used as front CV and Gate control inputs if rear jacks are not used.

Rear mounted "slider LED disable" switch - disables the slider LEDs only.

2 1/4 inch line level outputs for stereo effects.

High quality, extended life controls.

American made enclosure and printed circuit boards.

2500 style knobs are now standard equipment.

Front panel image is impregnated into the metal - it will never wear off.

Front panel surface texture exactly matches our 2500 Euro modules.

Blue LED sliders are standard equipment.

High quality medical grade NKK toggle switches

 

Notable similarities:

Jacks: High quality US made Switchcraft .141 Tini-Jax. The exact jack used on all ARP, CMS, and Buchla products.

All critical audio processing is performed by discrete, hand selected, low noise, matched transistors.

Reliable and serviceable thru-hole construction.

Uses 4000 series sub-module design - exactly like the original ARP 2600. Interchangeable with the original ARP 2600.

3 CMS 4027-1 discrete VCO sub-modules are standard equipment.

 

ORDERING A CMS 2607

UPDATED 6/12/2025

We are currently offering:

Hand assembled and tested in the USA by Phil and Linda Cirocco in the "ARP 2500 style" - silver with black graphics and 2500 knobs as pictured in the photos.

Prices:

We are currently making handmade limited edition 2607s. The special sale price for one of the hand-made limited edition 2607s is $6,999.00 USD. Georgia residents must add 7% sales tax. Prices may increase at any time. We have managed not to increase the prices for several years now, but time is running out. As with parts made overseas, US made electronic parts are increasing in price significantly.

Shipping and insurance:

You must either supply a UPS or Fedex account number for shipping and insurance or prepay the shipping and declared value (insurance) charges. There is no packing materials charge. Overseas customers are responsible for all taxes and duties.

Timeframe:

Delivery is guaranteed to be no longer than 2 months from the date of deposit. There is a limit on how many of these special order units that will be available, so contact us now if you are seriously interested.

Options:

First generation 2600 oscillators - 4027CX VCOs are now available for an additional charge.

Warm white slider LEDs are available at no charge.

230V operation is available at no charge.

Ordering:

If you are interested in ordering one of these special issue, limited edition 2607s, send a paypal deposit of $2000.00 USD to filter@discretesynthesizers.com to register your order. You can also send a check to CMS/Discrete Synthesizers to avoid the PayPal charge of 3.5% (5% for orders outside the US). Venmo payments are also accepted and are free. Email us at filter@discretesynthesizers.com for the mailing address and more info. You can avoid paypal fees by sending a bank wire transfer. Contact us by email for bank or Venmo info. We will send you a PDF invoice reflecting your deposit.

Warranty:

The CMS 2607 warranty is a guarantee provided by CMS/Discrete Synthesizers that the product will be free from defects in materials and workmanship for a period of one year from the date of delivery. This warranty covers the cost of repairs or replacements for defects or issues that arise during that period. It does not cover damage caused by misuse, accidents, acts of God or unauthorized modifications.