DOEPFER A-123-2 Highpass Modular Eurorack Demo Circuit 6/12/18/24DB

( Brand: Doepfer ), ( Model: A-123-2 6/12/18/24DB HIGHPASS ), ( Type: Modular Synthesizer ), ( Manufacturer Part Number: A-123-2 )

Review DOEPFER 6/12/18/24db Highpass Modular Eurorack Demo Perfect Circuit

The Doepfer A-123-2 6/12/18/24db Highpass Filter is a versatile and powerful modular filter unit in Eurorack format, designed and manufactured by the renowned German synthesizer company, Doepfer Musikelektronik. This filter module provides a range of high-pass filtering options, allowing users to shape and manipulate audio signals in various ways, making it an essential component in any modular synthesis setup.

At its core, the A-123-2 is a 12dB and 24dB resonant highpass filter, which can be switched between 6dB and 12dB or 12dB and 24dB modes via an internal jumper. This versatility offers a wide range of tonal possibilities, from subtle to extreme filtering. Each filter type has its unique character that can add warmth, thickness, or clarity to sounds.

The module features six independent highpass filter channels, each with its CV input and attenuator for fine-tuning the cutoff frequency. The filter's cutoff frequency can be controlled via an external voltage, providing a high degree of expressiveness and modulation capabilities. Furthermore, the filter's resonance can be modulated via an external CV input, allowing for self-oscillation and creating complex and intriguing sounds.

The A-123-2 also includes a dedicated output for the filter envelope, which can be used to control the cutoff frequency of other modules. Additionally, it has a key input, allowing the filter to respond differently when a specific note is played, adding an extra layer of musicality to the filtering process.

The front panel of the module is clean and intuitive, with all essential functions easily accessible. The filter's control voltage and audio inputs and outputs are located on the left and right sides, respectively, ensuring a neat and organized signal flow within your Eurorack system.

The Doepfer A-123-2 6/12/18/24db Highpass Filter is a must-have module for any modular synthesist looking to explore and manipulate audio signals with a range of high-pass filtering options. Its versatility, musicality, and high-quality construction make it a valuable addition to any Eurorack setup.

The Doepfer A-123-2 6/12/18/24db Highpass Modular Eurorack Demo Circuit is a versatile and capable filter module for Eurorack modular synthesizers. Here are some pros and cons based on its features and performance.

1. Versatility: This module offers six, twelve, eighteen, or twenty-four dB highpass filtering options, making it suitable for various applications in modular synthesis.

2. Flexibility: The filter cutoff frequency can be controlled by an external CV input, allowing for dynamic and expressive filtering.

3. Resonance: The module provides resonance control, adding character and depth to the filtering.

4. Stereo Input: The A-123-2 can process stereo signals, expanding its potential use in sound design and synthesis.

5. High-quality Construction: Doepfer is known for its robust and reliable modules, ensuring the A-123-2 will function reliably in your Eurorack system.

1. Size: As a Eurorack module, it requires 26 HP (horizontal pitches) of space in your system, which may not be suitable for those with limited rack space.

2. Price: The Doepfer A-123-2 is a premium filter module, which may not be affordable for all modular synthesists.

3. Complexity: With multiple filtering options and controls, this module may be more challenging for beginners to understand and utilize effectively.

The Doepfer A-123-2 6/12/18/24db Highpass Modular Eurorack Demo Circuit is an excellent investment for modular synthesists seeking a high-quality, versatile, and capable filter module. Its advanced features, including various filtering options, CV control, and stereo input, make it a valuable addition to any Eurorack setup. However, its price and size may be drawbacks for some. Ultimately, if you have the space and budget, the Doepfer A-123-2 is a worthwhile investment for expanding your modular synthesis capabilities.

part # a1232 prices

• $51.00-$310.00

specifications synthesasha:

• brand: Doepfer
• model#: A-123-2 6/12/18/24DB HIGHPASS
• type: Modular Synthesizer
• manufacturer part number: A-123-2

seller synthesasha:

• rating: 99.6%
• # reviews: 50203

general synthesasha:

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

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offer synthesasha:

• availability: In Stock
• options: Ship-to-home
• quantity: 2
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• started: January 31, 2026

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• policy: Returns Accepted
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• method: Money back

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• class: Standard
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• type: Fixed
• transit: 5-10 Days
• service: Standard

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