This synthesizer workstation is in excellent condition with very minor nicks. It is 100% tested and all functions work as they should. It includes the 3 optional sound ROM boards, Contemporary, Orchestral, Piano and 32 Mb memory expansion. This also includes a padded soft case and Kurzweil KP2 Sustain Pedal . 

From Vintagesynth

As a synthesizer, the K2500 is likely one of the most professional and superior instruments available. Very programmable, flexible and excellent sounding as you would expect from Kurzweil, following the amazing K2000 synths. The V.A.S.T. variable architecture synthesis has 60 DSP functions, 438 preset programs (238 ROM, 200 RAM) and is capable of amazingly realistic acoustic instruments and a diverse range of analog synth sounds and other unique sounds complete with multi-effects and real-time MIDI control.

The K2500 is another evolution of the amazing Kurzweil Sampler - Synthesizer - Workstations. Using their excellent V.A.S.T. synthesis and a professional Sampler option (S models) and Sequencer this is truly an elegant synthesizer with a full keyboard of 76 semi-weighted keys, 8 real-time sliders, 2 ribbon controllers, pitch and mod wheels and total MIDI controllability. The amazing sounds are contained on 8MB (up to 28MB) of sample ROM, expandable to 28MB using optional sound ROM boards! State-of-the-art sampling is also available on the K2500S and K2500XS with an astonishing 64MB of RAM standard! And that's expandable to 128MB! A 32 track interactive song arranger is also on-board allowing you to create various and complex sequences and songs which can be triggered from a variety of sources. This sequencer is no slacker with pattern, linear, and step recording, cut, copy, paste, advanced groove quantizing, event list editing and other powerful editing tools with up to 16 songs and 16 arrangement tracks. Add stereo outs, eight individual outs, dual SCSI ports, digital I/O and you've got yourself a professional 'Production Studio'.