ADDAC SYSTEM ADDAC501B Expansion Eurorack Demo Circuit

( Brand: Addac System ), ( Model: ADDAC501B CR EXPANSION ), ( Type: Modular Synthesizer ), ( Manufacturer Part Number: ADDAC501B )

Review ADDAC SYSTEM Cr Expansion Black Eurorack Demo Perfect Circuit

The ADDAC System's ADDAC501B CR Expansion is a versatile and powerful module designed to expand the capabilities of your Eurorack modular syntheszer system. This module offers a complete implementation of the Curtis Electromusic Specialists' System 500 Series CS-50 Voltage Controlled Resonant Filter with Crossfade and Ring Modulation capabilities.

The ADDAC501B CR Expansion module features a 24dB/octave resonant low-pass filter with a self-oscillating mode. This filter can be controlled by both voltage and audio input, making it a versatile tool for shaping and modifying sounds in your system. The resonance control can be set from sub-audible levels to self-oscillation, adding a wide range of timbres and textures to your sounds.

The module also includes a voltage-controlled low-pass gate, which can be used to control the cutoff frequency of the filter with an external signal. This allows for dynamic filtering and expressive performances. Additionally, the filter can be manually bypassed, providing direct access to the raw signal.

Another key feature of the ADDAC501B CR Expansion is the crossfade function. This allows for seamless transitions between two filter frequencies, creating smooth and evolving sounds. The crossfade time can be controlled via an external CV input, providing even more expressive possibilities.

Furthermore, the module includes a ring modulator, which can be used to generate complex harmonic structures from audio and CV inputs. The ring modulator offers a wet/dry mix control, allowing for the blend of the original signal with the modulated signal.

The ADDAC501B CR Expansion is housed in a standard Eurorack 10HP width format, making it easy to integrate into any modular synthesizer setup. It is also powered by standard 12V, -12V, and 5V power rails, ensuring compatibility with most Eurorack systems.

In summary, the ADDAC System's ADDAC501B CR Expansion is a must-have module for any Eurorack modular synthesizer system. With its versatile resonant filter, voltage-controlled gate, crossfade function, and ring modulator, it offers a wide range of possibilities for shaping and manipulating sounds in your modular setup.

The Addac System ADDAC-501B is a versatile CV/Gate Expander module for Eurorack synthesizers. Here are some potential pros and cons that may help in deciding whether to purchase this module:

1. Flexibility: The ADDAC-501B offers a wide range of functionality, including 16 CV inputs, 8 CV outputs, 16 gate inputs, and 8 gate outputs. This makes it a highly versatile module for controlling and processing various CV and gate signals.

2. CV Shaping: The module features a number of CV shaping functions, such as attenuators, inverters, and summing mixers. This allows for more complex CV processing and modulation.

3. Gate Splitting: The ADDAC-501B can split a single gate signal into multiple outputs, which can be useful for triggering multiple sequencers or VCOs from a single gate source.

4. Compact Size: The module is relatively compact, measuring only 8 HP, making it a good choice for those with limited rack space.

5. High-Quality Build: The module is well-built, with solid pots, clear labeling, and robust connections.

1. Complexity: The ADDAC-501B offers a lot of functionality, which can be overwhelming for some users. It may take some time to fully understand and utilize all of the features.

2. Power Consumption: The module consumes a fair amount of power, with a rating of 12V: 110mA, -12V: 12mA. This may be a consideration for those with limited power supplies.

3. Price: The module is not inexpensive, with a street price of around $300. This may be a barrier for some potential buyers.

The ADDAC System ADDAC-501B is a powerful and versatile CV/Gate Expander module that offers a wide range of functionality in a compact size. Its CV shaping functions, gate splitting capabilities, and high-quality build make it a valuable addition to any Eurorack system. However, its complexity and relatively high price may be a consideration for some potential buyers. Ultimately, the decision to purchase the ADDAC-501B will depend on the individual user's needs and budget.

If you are looking for a versatile and feature-rich CV/Gate Expander module for your Eurorack system and have the budget for it, the ADDAC System ADDAC-501B is definitely worth considering. Its ability to process and shape CV signals, split gate signals, and compact size make it a valuable tool for any synthesist. However, if you are new to Eurorack modular synthesis or have limited budget, it may be worth considering more basic CV/Gate Expander modules before investing in the ADDAC-501B.

part # addac501b prices

• $152.00-$164.00

specifications synthesasha:

• brand: Addac System
• model#: ADDAC501B CR EXPANSION
• type: Modular Synthesizer
• manufacturer part number: ADDAC501B

payments synthesasha:

• other
• credit card: Diners-club
• wallet: Paypal

general synthesasha:

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

offer synthesasha:

• sold: 0
• quantity: 1
• availability: In Stock
• started: May 28, 2026
• options: Ship-to-home

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• class: Standard
• cost: $0.00
• service: Standard
• transit: 4-7 Days
• type: Fixed

seller synthesasha:

• rating: 99.7%
• # reviews: 51163

returns synthesasha:

• time: 30 Days
• method: Money back
• paid by: Buyer
• policy: Returns Accepted

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