MATRIXSYNTH: Rare Elex Excelsior EK4 Strings & Brass Synth SN 6937

Saturday, March 11, 2023

Rare Elex Excelsior EK4 Strings & Brass Synth SN 6937

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video upload by ohm_studi_ohm

This appears to be the first post to feature one. You can find additional string machines by Elex in previous posts here.

via this auction

"Extremely rare italian string machine, built by Elex (ELettronica EXcelsior), also sold by Hohner at some point. Very close in sound to the Crumar Performer or Elka Rhapsody.

It offers Strings and Brass section, with independent volume for each instruments, a very nice filter in the brass section, as well as vibrato, and the string section has long crescendo and sustain settings.

Unit was serviced and is in very good working order except for the attack in the Brass section that doesn't work. This synth use a very rare SSM2050 chipset as the enveloppe generator on the brass section. This is the same chip used in the Sequential Circuits Prophet 5 and the RSF Kobol for instance. It simply can't be found anywhere. But if you are lucky to own one you can most probably fix the attack on the brass section ;-) Apart from that everything is working. Capacitor in the power supply were replaced and synth was calibrated. It uses the typical "ensemble" effect based on a triple BBD chorus, with the same TCA350 chipsets you have in the Eminent Solina, Crumar Performer, Logan String Melody and so many more classic string synths.

Cosmetic wise the synth is in good condition, especially considering the rather cheap build quality. But of course it has some scuffs here and there."

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