Hexinverter BD9

$202.00 to $239.00 Price Tier: Standard

5.0 (1)

Find out who is using Hexinverter BD9

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Page last updated Jun 20, 2026

Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated June 17, 2026.

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Price

$239.00

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$239.00

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$239.00

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4.0 (24)

$239.00

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4.7 (3)

$203.00 $202.00 $1.00 · All time low

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Average Price: $232

Standard/Professional

$149

$350+

Price Tier

In the Modular Synthesizers category, Hexinverter BD9 is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Hexinverter BD9". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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The Hexinverter BD9 is a powerhouse Eurorack module designed to deliver the unmistakable punch and depth of the classic TR-909 drums, but with a modern twist. Engineered collaboratively by Erica Synths and Hexinverter, this module expertly combines voltage-controlled distortion with an analog VCO to craft kicks that are both ferocious and flexible. With its switchable sine and square waveforms, the BD9 offers a broad palette of sound possibilities, from subtle warmth to aggressive overdrive. The module is equipped with a pitch range of 30Hz to 240Hz, providing extensive control for sound sculpting, while the Pitch Decay and Amplitude Decay circuits allow you to shape everything from sharp, transient hits to booming, elongated sweeps.

The BD9’s integrated sub-oscillator adds an extra layer of sonic depth, perfect for those seeking earth-shaking bass that can be adjusted via CV or manually. The Click generator sharpens the initial attack, allowing you to tailor the impact of your beat. This module's Drive control ranges from smooth analog saturation to full-on speaker-rattling distortion, making it a versatile choice for modern modular setups. With its compact 13HP size, the Hexinverter BD9 fits effortlessly into any Eurorack system, making it an essential tool for producers and live performers seeking to enhance their sonic arsenal with bold, analog sounds.

Key Features:

Analog VCO with switchable sine and square waveforms
Voltage-controlled distortion for aggressive sound shaping
Wide pitch range from 30Hz to 240Hz
Pitch and Amplitude Decay circuits for detailed modulation
Integrated sub-oscillator for additional low-end depth
Dedicated Click generator for enhanced attack definition
Modular-level output for seamless integration into Eurorack systems
Compact 13HP size ideal for diverse setups

Reviews

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PROS

Very musical sound quality
Cute and portable design
Good sound for its size
Strong Bluetooth range for easy play-along
Versatile as a quality portable Bluetooth speaker

CONS

Lacks a rechargeable battery option
Sound issues reported after minimal use
Initial batteries may leak; check upon receipt

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Hexinverter BD9.

Comparisons

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The BD9 is linked to a 909 sound, whereas the Mutant Bassdrum is associated with an 808 sound, offering more distortion options.
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Alternatives like the Befaco Kickall and WMD Crater offer additional configurations and control, highlighting the diverse options available for dedicated kick drum modules.
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The Weston B1 lacks a drive but offers great sound quality, with the B2 providing more CV control and a sub-octave option, enhancing its feature set.
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Features and functionality

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The Mutant Bassdrum's distortion capabilities allow for varied sound customization and can significantly alter how prominently the kick cuts through a mix.
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The SSF Entity BD offers features not initially sought after but adds value with its unique timbre and color, making it a strong alternative to the BD9.
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Jomox Modbase's ability to store and potentially cycle through presets via CV control offers versatility not found in other modules.
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Befaco Kickall's square wave setting creates an overdrive-like character, despite lacking a dedicated drive circuit.
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Users report the tone knob significantly affects output levels, ranging from ~3 Vpp at 0% to clipping at 20 Vpp.
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Use cases and applications

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For those looking for a more distorted, industrial techno sound, the Mutant Bassdrum may be more suitable due to its built-in distortion features.
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Enhancing the BD9's output involves routing through an amp module, compressor, and high pass filter to manage low frequencies and boost gain.
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User experience

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Some users find creating kick sounds from scratch more rewarding, but having a dedicated module like the BD9 or Mutant Bassdrum can simplify achieving desired sounds quickly.
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The SSF Entity BD, though discontinued, receives praise for its comprehensive features and sound quality, making it a desirable option despite availability challenges.
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Owners note the BD9 might sound weak on home monitors but shines on large systems, as evidenced by its use in live acts by artists like Surgeon.
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Setup and maintenance

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Some users adjusted the Befaco Kickall's trim pot to achieve lower frequencies, affecting 1v/Oct tracking accuracy.
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The BD9 tone and board level controls interact; setting one to 100% restricts the other to 75% before clipping on the clean channel.
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