Roland System 100M ADSR clone
http://www.frequencycentral.co.uk/?page_id=827This offer was fetched from reverb.com. You cannot contact the seller via ModularGrid. You have to visit their site.
Look up onMint condition. Gently installed. Briefly used. "The Frequency Central System X Envelope is based on the EG found in the Roland 100M, albeit optimized for the Eurorack modular format. Frequency Central have implemented a range switch for alternating between fast and slow responses."

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