ARP 2600 sn2601047x For Sale. This late model 2601 came to us in working order, but, as perfectionists, we wanted it to work like new or better for its next owner, so we fully disassembled it, cleaned it inside and out, thoroughly serviced it, rebuilt it and recalibrated it - a costly process taking approximately 20 hours of skilled vintage synth repair tech time. Now that its restoration is complete, it's a pleasure to play and should make its next owner extremely happy. Unlike earlier models, all circuits inside this model are unencapsulated, with the exception of the ARP 4012 Moog filter. This means this unit will be much easier to service in the future, if need be. If you look closely at the pics, you'll notice a switch was added under the headphone jack. It's not wired to anything, but could be used for a future modification. This sale includes a power cord. There's no lid or keyboard, but most people's lids end up taking up space in their closet along with their keyboards since these are better controlled via a MIDI to CV converter. Please be sure to view the full sized images so you see there's engraving on the upper left and button right corners of the front panel.