For decades, the voltage controlled slew limiter has been a staple of modular synthesisers. With its extreme versatility, it can be used to slew control voltages (CVs), create envelopes, as a low-frequency or audio oscillator and much more.

Today, Contour 1 brings a fresh approach to this classic circuit. It delivers much improved performance and control by incorporating modern design techniques.

Moving from mono to stereo sound: a logical progression for any synthesist looking to expand their sonic palette. Making use of two audio channels, rather than just one, quite literally adds another dimension to the capabilities of a synthesiser.

Often considered to be the opposite of filters within a modular system, wavefolders are designed to fold a signal over itself multiple times. This generates additional harmonics, resulting in rich timbres.

'Multiples' are the classic solution to a common problem in modular synthesisers: how to distribute one output signal to multiple inputs. Simple passive multiples consist of several sockets, wired together.

Pivot 2 offers a unique solution: a compact, fully voltage controlled variable signal router. At the turn of a single knob, any signal can be routed through two external modules in series, parallel or reverse series, as well as any combination in between.

While modular synthesisers are most often used as stand-alone instruments, they also present exciting opportunities for processing external signals. Anything from an electric guitar to an effects send on a studio mixing desk can benefit from the unique sonic capabilities of even a modest Eurorack system.

Flexible Eurorack signal paths under gate or trigger control: that is the basic principle behind Route 4. Consisting of a pair of complementary routing sections, it grants access to a new level of signal routing options.

Select 2 lässt sich als Festspannungsquelle, Schalt-, Mute- oder Haltestufe, Invertierungswerkzeug, Abschwächer, Offset-Generator, Mixer und zur Addierung beziehungsweise Subtraktion von Signalen einsetzen.

At its heart lies an analogue 1-to-8 signal switch feeding an octet of high-stability track/sample-and-hold stages. Each of these has its own analogue output with an attenuation slider, in addition to a gate output. LEDs visualise the status of each stage in real time. The switch can be controlled sequentially using the built-in 8-step counter, or addressed directly by an analogue control voltage (CV).

Switch 4 ist ein tolles Werkzeug für Live-Performer. Mit dem Modul kann man Audiosignale oder Steuerspannungen schnell ein- und ausschalten.

Test 3 is a purpose-designed tool for measuring voltages and currents in your Eurorack system. This means that just a single circuit board or module can now replace a convoluted test setup with multiple multimeters, custom cables etc.

Whether it's in the studio or on a live stage, keeping audio interconnections free from unwanted hum and interference can be a challenge. Balanced lines are the proven solution to this problem.