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ARP 2500 UPGRADES
AND MODIFICATIONS
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2500 / 2000 SERIES CABINET
UPGRADES
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MAIN POWER
SUPPLY REBUILD -------------------------------------225.00
Much
of the noise and cross-talk in a stock 2500 is due to the age and configuration
of the power supply, not due to the matrix switches! The
power supply in your 2500 is 33 to 40 years old. Linear
power supplies have an average shelf / operating life of
about 20 years. Chances are that your power supply is not
up to spec. This can result in excessive noise, ripple,
and instability rendering the instrument useless in a modern
digital/midi studio. Without any de-soldering, you can disconnect your existing 2500 power supply and send it to CMS for a complete rebuild to ARP factory specifications.
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LAMP POWER SUPPLY REBUILD------------------------------99.00
The 2500 features a separate 12V regulated lamp power supply that we can service also. Minimal de-soldering is required to send in your lamp supply.
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MAIN POWER SUPPLY UPGRADE----------------------------379.00
Much of the cross-talk, noise and pitch instability in a 2500 system can be eliminated by upgrading the power supply to a modern high speed, low noise unit designed specifically for high fidelity audio applications. Even if you rebuild your 2500 main supply, there are limitations inherent in the older designs that permit noise and VCO waveforms to contaminate the power supply rails and subsequently distort the audio signal. To remedy this, we recommend the power supply upgrade. This mod replaces your unit with a high power, highly stable, military spec power unit with remote sense regulation. The overall sound quality, oscillator purity, stability and keyboard tracking are noticeably improved. You must send your cabinet to CMS to install the power supply upgrade.
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POWER DISTRIBUTION UPGRADE-------------------------449.00
Take your 2500 upgrade to the limit by having CMS upgrade your power distribution configuration. We install a high quality power distribution wiring harness that supplies a ultra clean power supply signal to each module in your system. This is the ultimate in low noise, high speed, high fidelity modifications you can install in a ARP 2500. You must have the CMS power supply upgrade to install the power distribution upgrade and you must send your cabinet to CMS for this upgrade.
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1000 SERIES MODULE SERVICING
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REPAIR AND RESTORATION OF ARP 1000 SERIES MODULES
CMS offers a full array of repair and restoration services for the ARP/Tonus 1000 series modules. Call or email Phil at CMS to send in your 1000 series modules for repair and restoration.
O.E.M. PARTS STOCK
We have an extensive stock of original equipment manufacturer parts to restore your modules to brand new ARP factory specifications.
EXPERT FACTORY CALIBRATION SERVICES
Many of the calibration points on the ARP 1000 series modules do not have trimmer potentiometers. Calibration of ARP 1000 series modules involves a process of testing the module, testing and selecting specific components and soldering them in place, then re-testing the module to factory specifications. CMS uses the original ARP factory test documents and blueprints directly from the inventor - Alan R. Pearlman and the former ARP service manager - Clarke Ferguson, for the selection and calibration process.
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