Waldorf KB37 Keyboard

$490.00 Price Tier: High-end

5.0 (1)

2 Critic Reviews

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Page last updated Jun 24, 2026

Pricing and availability

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5.0 (1)

$490.00 3 available Used

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Average Price: $490

High-end/Boutique

$149

$350+

Price Tier

In the Modular Synthesizers category, Waldorf KB37 Keyboard is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

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Description

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Discover the Waldorf KB37 Keyboard, a versatile platform designed for musicians who crave the flexibility of modular synthesis. This innovative instrument combines the familiarity of a keyboard with the vast potential of modular synthesis, making it a unique addition to any studio or live setup. The KB37 is not just a keyboard—it's an entire ecosystem for sound creation, offering seamless integration with Eurorack modules.

Featuring a full-length, 37-note Fatar TP9 keyboard, the KB37 provides a premium playing experience with aftertouch and velocity sensitivity, allowing for expressive performances. Its robust aluminum chassis not only ensures durability but hosts up to 107 HP of Eurorack modules, giving you endless possibilities to customize your sound. With an integrated power supply and a multitude of CV/Gate connections, the KB37 is ready to connect with your existing gear or become the centerpiece of a new modular setup.

Whether you're an experienced sound designer or a keyboardist looking to expand your sonic palette, the Waldorf KB37 bridges the gap between traditional keyboard performance and the exploratory world of modular synthesis.

Key Features:

37-note Fatar TP9 keyboard with aftertouch and velocity sensitivity
Accommodates up to 107 HP of Eurorack modules
Integrated power supply for modules
Robust aluminum chassis for durability
Multiple CV/Gate connections for seamless integration with modular gear
MIDI input/output for easy connectivity with other devices
USB port for computer connection and software updates

Product specs

Brand	Waldorf
Model	kb37 37-Key Eurorack Keyboard Synthesizer
Finish	White
Year	2016 - 2025
Made In	Germany
Categories	Keyboard MIDI Controllers
Analog / Digital	Digital
Key Size	Full Size
Keyboard Action	Synth Action
MIDI I/O	MIDI Input, MIDI Output, MIDI Through, USB MIDI
Modular Synth Format	Eurorack
Number of Keys	37 Keys

FAQs

What type of modular format does the Waldorf KB37 Keyboard support?: The Waldorf KB37 Keyboard supports the Eurorack modular format, allowing you to integrate a wide range of Eurorack modules into its chassis for a customizable synthesizer setup.
How many keys does the Waldorf KB37 Keyboard have and what is the key action type?: The Waldorf KB37 Keyboard features 37 full-size keys with a synth-action, providing a responsive and expressive playing experience ideal for synthesizer performances.
What MIDI connectivity options are available on the Waldorf KB37 Keyboard?: The Waldorf KB37 Keyboard offers comprehensive MIDI connectivity, including MIDI Input, MIDI Output, MIDI Through, and USB MIDI, making it versatile for various MIDI setups.
Is the Waldorf KB37 Keyboard suitable for integrating with other digital instruments?: Yes, the Waldorf KB37 Keyboard is digital and offers extensive MIDI connectivity, making it suitable for integration with other digital instruments and DAWs.
Can I use the Waldorf KB37 Keyboard as a standalone synthesizer?: The Waldorf KB37 Keyboard is designed as a Eurorack frame with a keyboard controller, so it requires Eurorack modules to function as a standalone synthesizer.

Videos

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Tim Shoebridge

Waldorf KB37 and Behringer System 100

Tim Shoebridge

Waldorf KB37 - a Keyboard for Eurorack Modules

Thomann's Guitars & Basses

Going Deeper in Modular with the Waldorf KB37

ProckGnosis

Waldorf KB37 and Eurorack Modules

Andertons Music Co

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Waldorf KB37 Keyboard.

Features and functionality

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The Mixup module is favored for clean stereo mixing, while the CP3-inspired .MIX adds warm distortion, beneficial for creating a standalone synth sound.
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The KB37 features a flexible and simple arpeggiator, alongside a solid build and great keybed, making it ideal for standalone monosynth setups.
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The KB37 setup can be optimized with a balance of sound sources and VCAs, as Rings, Plonk, and Plaits operate without needing a VCA.
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Quadrax handles both envelope and LFO duties, eliminating the need for a dedicated ADSR module due to Plonk and Plaits’ built-in adjustable envelopes.
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The KB37 is duophonic, providing a flexible playing experience with its velocity and aftertouch keyboard integrated into a modular setup.
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The Three Sisters filter is praised for controllable resonance, making it ideal for modeled sounds without the harshness some filters produce at high resonance levels.
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The KB37 can integrate digital modules like Plonk and Rings, offering a rich ambient soundscape when combined, especially with Plonk's pitched percussion sounds.
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User experience

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Some users are concerned about the KB37 potentially being out of production, impacting long-term support and availability.
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Owners appreciate the all-in-one convenience of the KB37, which includes MIDI-CV conversion and an audio in/out module, simplifying modular setups.
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Use cases and applications

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Waldorf demonstrated the KB37 with AJH Minimoog-clone modules, highlighting its suitability for recreating classic synth sounds in a modular format.
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Ideal for those aiming to recreate a Minimoog experience within a modular system, particularly when filled with AJH modules.
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Value and pricing

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The KB37 is seen as more cost-effective for those building a portable standalone monosynth, particularly when compared with alternatives like the Arturia Keystep.
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When considering the combined cost of equivalent components like a powered skiff, MIDI-CV interface, and quality keyboard, the KB37 is competitively priced for the features offered.
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Comparisons

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Some consider the Arturia Minibrute 2 with a rack case as a viable alternative, offering an integrated synth and sequencer for a similar price.
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The KB37 provides a more comprehensive MIDI-CV capability and a superior keyboard compared to alternatives like the KeyStep paired with separate components.
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Setup and maintenance

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Organizing modules left to right according to signal flow can improve usability, with suggestions to add a multi-purpose utility module for versatility.
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Mods and upgrades

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Owners suggest incorporating a Mimetic Digitalis for preset management and signal path switching, enhancing flexibility.
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Build quality

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Some users report the Waldorf keybed as superior to Moog's, even when transported under harsh conditions, suggesting robust design.
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Critic Reviews

Waldorf KB37

soundonsound.com

The Waldorf KB37 Keyboard shines as a sophisticated and versatile Eurorack case and MIDI controller, boasting a quality keyboard with aftertouch, ample CV outputs, and a dedicated arpeggiator. While its robust build and integrated power supply are commendable, the KB37's hefty weight and steep price might deter some. However, the blend of modular capabilities and MIDI integration makes it a valuable asset for serious modular enthusiasts seeking a portable, all-in-one system. If you can overlook the cost and portability challenges, the KB37 is a stunning addition to any modular setup.

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Full Review

Waldorf kb37 review | MusicRadar

musicradar.com

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Artist usage

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Deadmau5

Music Producer

BSOD

Verified via Instagram

In this video, deadmau5 can be seen playing a lead sound using the Waldorf KB37 Keyboard. The modules installed are the Waldorf NW1 and the Waldorf mod1. He says:

Little more context... nice lead machine! #waldorf

Which refers to a previous Instagram post where he says, "Loving the sounds coming outta the #waldorf nw1 on the kb37 rack... must dig deeper."

Jean Michel Jarre

Keyboardist, Music Producer

The Dustbins

Verified via YouTube

while JMJ introduces his Schmidt synthesizer the Waldorf KB37 can be seen in the background throughout the video

Andrew Huang

Singer, Guitarist

First Of October

Verified via YouTube

can be seen in the background at 3:22 in this March 24, 2022 video

George Daniel

Drummer, Composer

The 1975

Verified via Imgur

George Daniel can be seen using the Waldorf KB37 Modular Synth in this photo taken from the Spotify Storyline to The 1975's fourth album 'Notes On A Conditional Form'. Matt Healy has quoted (on the Spotify Storyline) that they used a modular synth on the song 'Yeah I Know' off of NOACF, it is therefore highly likely that they used this Waldorf to generate that sound.

Orla Gartland

Singer, Guitarist

FIZZ

Verified via Photo

Orla Gartland is seen using the Waldorf KB37 Keyboard in an Instagram post where she mentions writing a song with other artists.

VZOID

Composer, Music Producer

Verified via Photo

In a user-uploaded photo, VZOID is seen using the Waldorf KB37 Keyboard along with a 1010 Music Bitbox sampler, XAOC Devices Praga, and Tiptop DSP, showcasing its capabilities as a versatile MIDI and CV controller.