Vostok Instruments Fuji Eurorack Multi-Channel Envelope Generator Module

We say...

Incredible bang for your buck once again from Vostok, which must boast the best 'HP per envelope' figure around (1.67!). A real space-saver for multi-voice systems, or any kind of setup that needs lots of classic AD/ASR shapes in a small footprint.

Manufacturer's description

The world of envelope generators is a vast field where cultivating a new species is a challenge that gets harder every day. We have lots of flavours to choose from: from classical ADSR to Serge-based slope generators, through the newest digitally controlled multi-stage modules.

The concept behind Fuji is not to create a new flavour, but to offer a large number of the most popular envelope circuit along with some design decisions to make it a useful, immediate and always musical tool.

The slope of the envelopes is tuned with logarithmic attack and exponential decay. This configuration has been used for years as it follows the non-linearity of human hearing, keeping the dynamics changes pleasant and natural to our ears.

The range of both the attack and decay stages is symmetric, getting a minimum and maximum rise/fall time of 1.5ms to 1.5s. This range has been also tuned to be musical and precise in most applications.

Gate input chaining adds tons of flexibility to the patch. Groups of synced envelopes can be easily made with a few cables.

Features

• Six channels
• Fully analogue AD envelope generators
• Selectable Hold and LFO mode per channel
• Daisy-chained gate inputs

Specifications

• Size: 10HP
• Current draw: +/-12V: 50mA, +5V: 0mA
• Depth: 30mm (including power cable)
• Envelope Level: 8V
• Gate Input Threshold: 1.5V