ADDAC501

This is one of Eurorack's most underrated random modules!

The ADDAC501 does random CV generation and outputs it through four independent channels. You can control the desired range of voltages and time frequency at which new values are generated.

It can also be triggered by an external CV source and the output voltages can be either free or quantized (if you prefer to have a standard C Major scale).

Finally you can choose between pure randomness or a Brownian distribution, for both the voltage and time intervals.

Maximum and minimum voltage
Maximum and minimum time interval
Four independent outputs
Standard or Brownian distributions
Quantization
External clock input

. Four variable settings: Voltage Maximum, Voltage Minimum, Frequency Maximum and Frequency Minimum, controlled either manually through the front panel knobs or externally from a CV input.

. Four independent CV outputs.

. Standard / Brownian Voltage - selects the type of random algorithm used.

. Quantization On / Off - allows to quantize the zero to five volts range to a Major Pentatonic scale using Moog’s 1v per octave standard.

. External Clock On / Off - allows to sync to an external clock.

. Standard / Brownian Time - selects the type of random algorithm used for the clock timing.

Note: All specifications and features are subject to change without previous notice.

Mechanical:
. Format: Eurorack
. Width: 8 HP
. Depth: 5 cm

Control Voltage I/O:
. CV inputs: 0 - 10v
. CV output: 0 - 5v (0 - 10v through jumper)
. Gate in threshold: 2.5v

Electrical:
. Compatible with +-12v and +-15v power supplies
. Max current: 150mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Note: All specifications and features are subject to change without previous notice.

ADDAC501 Version 1 videos:

The pdf below features all info regarding upgrading the ADDAC501 Module, including necessary hardware, physical connections and download links.

ADDAC501 Firmware Update Guide:

http://media.addacsystem.com/firmwares/ADDAC501_Firmware_Update.pdf


Last Firmware Update:
Version: B_0, February 11th, 2017
-> New mode defines how expansion gate outputs operate:
    1. Normal mode: Random outputs on change
    2. New mode: expansion gate outs output a clock signal everytime the corresponding CV output changes. 
Fast flick Clock Internal/External switch up and down to switch between modes. 

Past updates:
    A_3 features and corrections:
-> Corrected a clock input issue.
-> While using an external Clock Input user can now set a fixed clock delay using Time Min Knob, Time Max Knob sets maximum Random Clock Delay
-> Time pots now work exponentially: X^3, better definition on smaller time intervals.
-> Expansion now autodetects on and off while module is running.
-> Expansion Smooth pot now rests at center: Rotating to the left features a new portamento ring modulation; Rotating to the right features the standard smooth/glide function.

In case you're wondering: Sure! We can get you a custom coloured front panel for the ADDAC501.
It has an additional cost and takes 4 to 6 weeks to be ready.

At the moment we have standard issue stock for either Black or Red panels for this module

A custom colour panel can be done in either Green, Blue, White, Silver Gray, Yellowed Silver, and Dark or Light Bronze.

Print colour varies between Black, White, or Red, Blue and Green. We recommend lighter-tone print for darker panels, and vice-versa.

Please note: we don’t stock custom coloured panels. For every custom order we need to make a single panel order from our panel provider. This explains the panel price and lead time.

Thanks for your interest in the ADDAC501!

To proceed with a direct purchase, you may fill out the form on our Orders Page.

If you want to obtain it through a shop closer to you, this is our Distributors Page.

Product Safety Information

Eurorack Module

Important Safety Information
This Eurorack module is designed for use within standard Eurorack synthesizer systems and is intended for adult users familiar with modular synthesis and electronic equipment.

Please read this safety guide before installation or use.

General Warnings
1. Electrical Hazards:
• Ensure the power supply matches the module’s specified voltage and current ratings (refer to the product manual). Incorrect voltage can damage the module and pose a safety risk.
• Never connect or disconnect the module while the Eurorack system is powered on.
2. Heat Generation:
• The module may generate heat during operation. Ensure proper ventilation within your Eurorack case to prevent overheating.
3. Sharp Edges:
• The module’s faceplate and components may have sharp edges. Handle with care to avoid cuts or scratches.
4. Small Parts:
• Contains small parts that could pose a choking hazard. Keep away from children and pets.
5. Compatibility:
• This module is designed specifically for Eurorack-compatible systems. Connecting it to non-compatible systems may result in damage or malfunction.

Installation and Use
• Mounting: Secure the module properly in the Eurorack case using the provided screws.
• Power Connection: Verify the polarity of the power cable before connecting to avoid damage to the module or power supply. Use only the included or manufacturer-recommended power cable.
• Operational Use: Follow the module's user guide for instructions on operation. Do not exceed the input/output limits specified.
Maintenance and Handling
• Inspection: Regularly check for loose connections or signs of wear.
• Cleaning: Disconnect the module from power before cleaning. Use a dry or lightly damp cloth; avoid using solvents or water directly on the module.
• Repairs: Do not attempt to repair or modify the module yourself. Contact the manufacturer for support.

Environmental Safety
• Dispose of the module, its components, and packaging in accordance with local electronic waste regulations.

Liability Disclaimer
• The manufacturer is not responsible for any injury, damage, or malfunction resulting from improper installation, use, or modification of this product.

Contact Information

For further assistance, contact our support team at:
Addacsystem, Lda.
addac[at]addacsystem[dot]com