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Look up onUp for sale is a vintage Boss CS-2 Compression Sustainer guitar pedal. This one was made in Japan between 1977-1984, with the black label on the bottom, serial number 704600. This one was tested here in our shop and it works as it should. It shows some wear in the chassis and knobs. I replaced the rubber gasket where the battery compartment opens. The pedal does not include an AC adapter. Check out the pictures for condition.

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