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Key Features
The Doepfer A-170 is a dual slew limiter, which are often called portamento controllers or integrators. The top slew limiter has one joint control. Use this to set both rise and fall times. Because of its circuit design, this one is ideal for precision applications, such as for 1V/Oct CV inputs on oscillators.
The lower slew limiter is made up of two separate controls for rise and fall times. In this way, it is great as a simple AR envelope generator. Its circuitry means it is less suited to precision applications, but can still be used for a range of purposes, such as filtering.
Product Ref: 220580
If you want to introduce portamento - gliding between notes - into your modular sequences, this is the ideal module for the job. The first slew limiter is made for precision operations, so will work well inputted to the 1V/Oct input of any oscillator. This means notes will glide between each other - giving your music a less rigid feel.
The second slew limiter is not as precise but has separate rise and fall controls. This makes it great as a simple amplitude envelope. It can also act as an effective filter, behaving in a different way to standard low-pass and high-pass filters. Why not try out a few different combinations and see how this module affects your signals?