K2500 - 76-note semi-weighted piano-style keyboard
K2500X - 88-note fully-weighted piano-style keyboard.
Power Supply: User switchable international power supply
Architecture: Proprietary V.A.S.T. system
Polyphony: 48 voices (or 24 stereo)
Display: 64 x 240 fluorescent backlit display
Outputs: 8 audio outs (double as inserts) plus mix master pair. 600 ohm stereo headphone out
With SMPK-2 Sample Option: Stereo 1/4" unbalanced analog hi-Z input (tip/ring/sleeve); two balanced (Lo-Z) XLR inputs.
Digital I/O: AES-EBU, optional S/PDIF (via Optical and RCA) inputs and outputs. KDS (Kurzweil Digital Stream) out provides digital out for interfacing with other options.
Sample RAM: up to 128 MB via standard 30 or 72 (depending on date of manufacture) pin SIMMs
Sound ROM: up to 28 MB; 8MB base ROM with full K2000 file compatibility. Optional 8 MB Orchestral ROM Sound Block and 8 MB Contemporary ROM Sound Block; 4 MB Stereo Grand Piano Sound Block
Sequence/Program RAM: 256KB user-programmable battery-backed RAM, expandable to 1.25MB via standard SIPP memory.
SCSI support: Two SCSI-1 25-pin D connectors (to Apple specifications and pinout)
OS Upgrades: User-installed upgrades supplied on 3.5in DOS compatible floppy disks or via download from this web site, saved to 3.5in FD or transfer via SCSI to K2500R battery backed "Flash" EPROM. PC DOS compatibility required.
Advanced File Management System: DOS based, compatible disk format allows for friendly cataloging and retrieving of sounds/files, and powerful utilities include: file search, provide info about media/available space/used space etc., disk MACRO, and Startup file applications allow easy custom configuration.
Sequencer: Full-function sequencer with 16 song and 16 arrangement tracks. Offers pattern, linear, and step recording, Cut, Copy, Paste, advanced 'groove' quantizing, event list editing and other powerful editing tools. Sequences can be triggered in real time from the keyboard.
Compatibility: Reads/writes Standard MIDI Files, AIFF, and .WAVE files. Reads libraries via SCSI in Roland 700 series, Akai S900, S950, S1000, S1100, and S3000, and Ensoniq EPS, and ASR file formats. Reads FDs in Ensoniq and Akai formats.
SMP-2X Advanced Sampling Option with Digital I/O, Optical I/O, and Sample-while-play. DSP functions include time compression/expansion, pitch shifting, re-sampling, pasting samples on a beats per minute time line (Mix Beat), volume ramps, mix sample and many other functions.
KDFX Digital Effects Option utilizes Kurzweil's newest VLSI DSP chip. Versatile 4-stereo-bus design, full bandwidth, cutting edge DSP functionality, digital I/O and flexible routing scheme.
DMTi Digital MultiTrack interface performs real-time digital data format conversion between K2500, AES/EBU, S/PDIF, ADAT and DA-88. It simultaneously performs real-time sample-rate conversion to 44.1 kHz, 48 kHz or a variety of external clock rates.
Contemporary ROM, Orchestral ROM, Stereo Grand Piano ROM Soundblocks add additional ROM samples, along with new preset programs and setups
PRAM/2 Program RAM Memory Expansion increases the amount of battery backed RAM from 256k to 1280k.
K2500 47.8" x 17.8" x 4.8" 121.4 cm x 45.1 cm x 12.2 cm
K2500X 54.3" x 17.8" x 4.8" 137.9 cm x 45.1 cm x 12.2 cm