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Description

Experience the fusion of advanced technology and expressive sound with the Kurzweil K2500. This synthesizer is renowned for its powerful V.A.S.T. (Variable Architecture Synthesis Technology), offering musicians unparalleled control over waveform shaping and sound design. Whether you're crafting intricate compositions or performing live, the K2500 provides the tools to bring your musical ideas to life. With its intuitive interface and vast library of high-quality sounds, this synth is perfect for both studio and stage.

The K2500 features a robust selection of onboard effects and modulation options, allowing for creative flexibility that suits any genre. Its expandable architecture ensures that you can keep your sound library fresh and up-to-date, while the onboard sequencer supports complex arrangements with ease. With a focus on delivering rich, authentic tones, the Kurzweil K2500 remains a favorite among synthesists and producers.

Key Features:

  • V.A.S.T. Synthesis for deep sound customization
  • Onboard effects including reverb, chorus, and more
  • Expandable sound library with sample RAM options
  • Built-in sequencer for intricate arrangements
  • Compatible with MIDI for seamless integration with other gear
  • Comprehensive modulation options for dynamic sound shaping
juan manuel

juan manuel

Kurzweil K2500 Demo

Video thumbnail for Kurzweil K2500 Demo by juan manuel

Kurzweil K2500 Demo

juan manuel

juan manuel

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Kurzweil K2500.

User experience

  • Users find the V.A.S.T. system's modulation and envelope options inspiring for exploring mathematical functions, enhancing engagement with synthesis.

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  • Owners find updating the K2500's firmware straightforward, involving floppy disks and specific on-power procedures, with well-documented instructions available.

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  • The K2500 is praised for its build quality, with a heavy, durable metal construction designed for touring, rivaling the robustness of a Hammond organ.

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Other

  • The K2500's DAC was upgraded from the K2000's AD1860 to AD1865, retaining 18-bit processing with steep anti-aliasing filters, maintaining a consistent sound character.

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Use cases and applications

  • The K2500's Live Mode allows for advanced external audio processing via V.A.S.T., enabling complex feedback architectures not detailed in the manual.

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  • The K2500 is favored for its ability to combine samples with synthesized tones, reminiscent of 90s-era artists like Dream Theater's Jordan Rudess.

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  • This synth is highly regarded for creating ambient and pad sounds due to its extensive modulation options and multi-output capabilities.

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Mods and upgrades

  • Installing KDFX significantly enhances the K2500's capabilities, transforming it into a powerful effects box beyond its original synth functions.

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  • The K2500 can utilize SCSI interfaces for expanded memory and connectivity, benefiting live performances with fast sample access.

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  • Users recommend replacing the floppy drive with a GoTek USB thumbdrive/floppy emulator for easier data handling and access.

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Comparisons

  • The K2500 is described as having a more 'hi-fi' sound compared to the K2000's 'vintage' tone, partly due to different converters.

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  • Compared to newer models, the K2500's sequencer offers more comprehensive features, such as track muting, which are lacking in the K2700.

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  • The K2500's V.A.S.T. architecture allows stacking of multiple layers, a feature not commonly found in modern synths, even though it can be replicated in software.

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Features and functionality

  • The K2500 can load K2000 patches and offers 10 outputs compared to the K2000's 2, which significantly enhances its studio and live setup flexibility.

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  • The K2500 can perform a variety of synthesis techniques such as wave sequencing, FM, physical modeling, granular, and additive, making it extremely versatile.

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  • The K2500's sequencer can play back 32 tracks and drive external MIDI, though its 48-note polyphony requires careful management in complex orchestrations.

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Setup and maintenance

  • Owners use flash-to-SCSI drives to modernize data handling, citing the convenience of removable cartridge drives like the 1 GB Jaz Drive.

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  • Owners note the importance of having both manuals for programming as the K2500 is complex but not overly menu-divey when navigating LFO and modulation settings.

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Build quality

  • The K2500 has a robust keybed and metal construction, but users note issues with "soft button" mechanisms over time.

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4.5 out of 5

Based on 0 Reviews and 8 Ratings

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Artist usage

Add artist
See how Trent Reznor uses Kurzweil K2500

Trent Reznor

Singer, Guitarist

Nine Inch Nails

...
Verified via Theninhotline

"...We don't really have many sample-based workstation-type keyboards in the studio, except for the Kurzweil K2500."

The K2xxx series was also used a lot on the downward spiral. The guitar for "Hurt" is the acoustic guitar patch on the on the orchestral rom. The drums for "The Becoming" were also programed on a K2xxx series.

See how Autechre uses Kurzweil K2500

Autechre

Music Producer

...
Verified via Soundonsound

Autechre's hardware samplers include the likes of the Ensoniq ESR and EPS, Kurzweil K2500, Emu E-Synth, and Casio samplers like the FZ1, FZ10, SK1, SK5 and SK100. "Changing them is brilliant fun," remarks Booth about the latter three, "get the backs off them and a few bits of wire and have an amazing time. We mess around with electronics, and have loads of broken half-bits of gear lying around. I learned some things at college and can use a soldering iron."

See how Richard Wright uses Kurzweil K2500

Richard Wright

Singer, Keyboardist

Pink Floyd

...
Verified via Fika

The Kurzweil K2500 is know as "the Pink Floyd Synth" for has been used by wright since it cames out

See how Steve Winwood uses Kurzweil K2500

Steve Winwood

Singer, Guitarist

The Spencer Davis Group

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Verified via Ultimate Classic Rock

"No, I played Kurzweil this time. As you say I often played Minimoog in the past. Or DX7."

and

"No, I think it was one of the preset sounds on a copy of the ROM which was Kurzweil's accessory. Or maybe I used other sound module in the end. I can't remember how the patches were. But I don't dislike programming itself though I sometimes leave it to other people. Recently I use MARK OF THE UNICORN's Performer [a programming software for Macintosh] and a Macintosh as my main tools when I do it. However, as to the sounds of such vintage instruments as Wurlitzer's electric piano and Hammond organ or of such effects as wah wah, I use real ones more often than programmed ones. But this does not mean that I defy sound modules and sampled sounds." - Charles Shimiz, Keyboard Magazine May 1997, interview talking to Steve Winwood's upcoming Junction Seven album - http://www.stevewinwood.com/news/6052

See how cEvin Key uses Kurzweil K2500

cEvin Key

Drummer, Keyboardist

Skinny Puppy

...
Verified via Photo

cEvin Key uses a Kurzweil K2500 as a master keyboard at Subconscious Studios, as seen in a user-uploaded photo.

See how Stephen Morris uses Kurzweil K2500

Stephen Morris

Drummer, Keyboardist

Joy Division

...
Verified via Soundonsound

"The vocal choir part on 'Blue Monday' was sampled, and it was probably one of the first instances of someone sampling something from someone else's record. New Order originally used an Emulator II to play their samples live, but a lot of the time the Emulators wouldn't load up so the roadie would have to hit one of the legs with a hammer to start it working again — it was that kind of technology! So Steve had that part loaded up into his Kurzweil K2500."

See how Butch Vig uses Kurzweil K2500

Butch Vig

Drummer, Music Producer

Garbage

...
Verified via Music Connection Magazine

"I bought an Akai S1000 and a Kurzweil K2500 and those became writing tools for us."

See how Trey Spruance uses Kurzweil K2500

Trey Spruance

Guitarist, Keyboardist

Faith No More

...
Verified via Tripod

"All of those keyboards (Jeff/Roto's, and Bar's) are hooked up via MIDI to my K2500. There are three to five total keymaps per song (one for each keyboard, sometimes two on Roto's channel, and three in the case of Robots). Some of these keymaps are 32 layers deep with different up to 38 programmed sounds and samples on ONE KEYMAP. Each keymap is divided up into "zones" where these parts can be grouped strategically, and played once all the locations are memorized.

See how Donald Fagen uses Kurzweil K2500

Donald Fagen

Singer, Keyboardist

Steely Dan

...
Verified via Soundonsound

" I do have a Triton and a Kurzweil K2500, and use them for special effects and when I can get away with only using part of the keyboard, like if I want to mimic a flute or a mallet instrument or an organ. Organs aren't tuneable, and are flat, weird-sounding anyway."

See how Rhys Fulber uses Kurzweil K2500

Rhys Fulber

Music Producer

Fear Factory

...
Verified via Photo

In a 2016 Gearspace post, Rhys Fulber discusses his use of the Kurzweil K2500 while working on Fear Factory's album "Obsolete."

See how Suzanne Ciani uses Kurzweil K2500

Suzanne Ciani

Keyboardist, Composer

...
Verified via Soundonsound

Evidently this lengthy ongoing project will involve Suzanne reverting back to her compact and bijou collection of electronic instruments, with the 88‑note Kurzweil K2500 taking centre stage as the master keyboard controller: "I used to have these very strong opinions about different manufacturers and I always said I'd never use a Kurzweil. I just didn't like the sound. Then when I moved into this house, before I had my equipment sent from New York, Joe loaned me his Kurzweil, and it won me over. I started investigating, got involved and started talking with the Kurzweil people. I found them to be a very dedicated and excellent company. I like the way they do business and where they're coming from. They really do care, and the K2500 and K2000 are both sophisticated instruments with a lot of depth. So I'm a Kurzweil convert!

See how Scott Walker uses Kurzweil K2500

Scott Walker

Singer, Guitarist

The Walker Brothers

...
Verified via Soundonsound

This Sound On Sound article states: "Since The Drift, Scott Walker has developed a working method distinct from his albums of the '80s and '90s, which involves him creating demo sketches of his songs in the sequencer of his Kurzweil K2500 keyboard workstation."

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Kurzweil K2500, it is most commonly used with the following gear.

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