BUBBLESOUND SEM20ST Stereo Vcf Modular Eurorack Demo Circuit

( Brand: Bubblesound ), ( Model: SEM20ST STEREO VCF FILTER ), ( Type: Modular Synthesizer ), ( Manufacturer Part Number: SEM20ST )

Review BUBBLESOUND Stereo Vcf Modular Eurorack Demo Perfect Circuit

The Bubblesound SEM20ST is a stereo voltage-controlled filter (VCF) module designed for Eurorack modular synthesizers. This versatile filter brings the iconic sound of the Synthasystem SEM (System for Electronic Music) filter to your modular setup.

The heart of the SEM20ST is its two independently controlled SEM-style filters, each offering selectable 12dB or 24dbs resonance. These filters employ state-variable design, allowing them to function as low-pass, high-pass, band-pass, and notch filters. The filter cutoff frequency is voltage-controllable, providing a wide range of tonal possibilities.

Each filter also features an envelope follower input, which allows the filter response to be shaped by an external envelope generator. Additionally, there are dedicated inputs for external signal input, keyboard input, and a self-oscillating voltage-controlled oscillator (VCO).

The stereo version of the SEM20ST separates the outputs of the two filters, providing two independently processed signals. This makes it ideal for creating complex, wide stereo filter effects. The module also includes a global Damping control, which allows you to adjust the attack and release times for both filters.

The SEM20ST is housed in a compact 16HP Eurorack enclosure, making it a great addition to any modular setup. Its high-quality, through-hole components ensure reliable performance, and its robust design ensures that it will withstand the rigors of live performance and studio use.

In summary, the Bubblesound SEM20ST is a versatile and high-performance stereo voltage-controlled filter module that brings the classic SEM sound to your Eurorack setup. Its two independently controlled filters, each with selectable resonance and voltage-controllable cutoff frequency, offer a wide range of tonal possibilities. The module's envelope follower inputs, external signal inputs, and self-oscillating VCO make it a versatile tool for shaping and manipulating sound, while its compact size and robust design make it a great addition to any modular synthesizer setup.

The Bubblesound Sem20ST Stereo VCF Modular Eurorack demo circuit is a versatile and high-quality voltage controlled filter (VCF) solution for your Eurorack modular synthesizer setup. Here are some pros and cons to consider before making a purchase.

1. Stereo Capability: The Sem20ST is a stereo filter, which means it can process two audio signals independently. This makes it an excellent choice for those looking to create complex and interesting sound textures in their modular system.

2. Versatile Filter Types: The Sem20ST offers a range of filter types, including low-pass, high-pass, band-pass, and notch filters. Additionally, it includes a resonant mode, which can create self-oscillating filters and unique sounds.

3. CV and Audio Inputs: The Sem20ST has both CV and audio inputs for each channel, allowing for a wide range of modulation possibilities.

4. External VCF Control: The filter can be controlled externally via CV, making it easy to modulate the sound in interesting ways.

5. Compact Size: The Sem20ST is a relatively compact module, making it a great choice for those looking to build a smaller Eurorack system or who have limited space in their existing setup.

1. Price: The Sem20ST is a more expensive option compared to some other VCF modules on the market. However, its stereo capability and wide range of filter types may justify the higher cost for some users.

2. Power Consumption: The Sem20ST draws a fair amount of power, which may be a consideration for those with smaller power supplies or who are trying to minimize their power consumption in their modular system.

The Bubblesound Sem20ST Stereo VCF Modular Eurorack demo circuit is a high-quality and versatile filter solution for modular synthesizers. Its stereo capability, wide range of filter types, and external CV control make it an excellent choice for those looking to create complex and interesting sound textures in their modular system. While it may be a more expensive option compared to some other VCF modules on the market, its unique features and high-quality sound may justify the investment for some users.

If you are looking for a high-quality stereo VCF module for your Eurorack modular synthesizer setup and have the budget for it, the Bubblesound Sem20ST Stereo VCF Modular Eurorack demo circuit is an excellent choice. Its wide range of filter types, stereo capability, and external CV control make it a versatile and powerful addition to any modular system. However, if you are on a tighter budget or only need a mono VCF, there may be more affordable options on the market that would suit your needs.

part # sem20st price

• $279.00

specifications synthesasha:

• brand: Bubblesound
• model#: SEM20ST STEREO VCF FILTER
• type: Modular Synthesizer
• manufacturer part number: SEM20ST

general synthesasha:

• Musical Instruments Gear > Pro Audio Equipment > Synthesizers
• condition: Open box

shipping synthesasha:

• type: Fixed
• class: Standard
• service: Standard
• transit: 5-11 Days
• cost: $0.00

offer synthesasha:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: November 28, 2025

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• wallet: Google-pay
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• paid by: Buyer
• method: Money back
• policy: Returns Accepted
• time: 30 Days

seller synthesasha:

• # reviews: 49705
• rating: 99.4%

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