To conclude, let's tackle some frequently asked questions that might seem puzzling as you embark on your Eurorack journey – but fear not, we've got you covered!
Can modules be damaged while patching?
Not really. Just make sure to always patch signals from outputs to inputs. If outputs are connected to outputs, problems can occur. Also, be cautious about audio feedback loops. While these won't destroy modules, they can pose a risk to your speakers. Eurorack levels are already quite loud and can pose an even greater danger to studio monitors if there are feedback loops.
What can potentially cause lasting harm to your modules is the incorrect connection of power cables to the module or the power supply within the case. Reversing the positive and negative voltage can result in short circuits. Thankfully, numerous modern modules come equipped with safeguards against such polarity mistakes, and the same applies to case power supplies.
Just like the previous question, the answer here revolves around levels. Eurorack signals are typically quite loud. Therefore, when using effect modules with external devices like desktop synthesizers, you'll require a preamp to boost their levels. Some examples of individual modules for this purpose include the Mutable Instruments Ears or, specifically designed for guitars, the Strymon AA1 Level Shifter. Furthermore, you'll also need an output module, such as the Intellijel Outs, to reduce the processed signal back to line or instrument level, making it suitable for further use in a studio or live performance setting.
This question definitely needs to be answered before you buy a case or a set of modules for a specific case. Manufacturers always specify how much power their devices consume. The specification is divided into three parts: it specifies how many milliamperes are needed from the +12-volt rail, the -12-volt rail, and the +5-volt rail of the busboards of the power supply. Add up the values of all modules and compare them with the specifications of the case. The total power consumption of your modules should be a maximum of 90 percent of the respective value of the power supply in the case for all three values. In that case, everything is fine, and your modules will consistently receive an ample power supply.