System X Envelope was the second module to be released in Frequency Central’s Roland System 100M clone series. It is a very well regarded envelope, and unsurprisingly is Frequency Central’s most popular module, ticking all the boxes for a design of this type. Envelopes are a very personal matter of taste – but many users of the System X Envelope have praised its particularly snappy, musical response.
Although voltage-controlled envelopes obviously offer the ultimate in flexibility, more often than not a good, solid ADSR is all a patch requires – especially when used to control a system’s main output VCAs.
With full Attack, Decay, Sustain and Release controls in a 4hp format, the System X Envelope is a real workhorse of a module. In addition to these core controls, it boasts the following useful features:
- A range switch for fast/ slow response.
- A positive (normal) and inverted output
In 4hp this is an excellent choice as a simple, but effective ADSR envelope.
Power: 10mA @ +12v / 10mA @ -12v