Behringer Eurorack Rack: A Complete Guide

A Behringer Eurorack rack is a modular synthesiser case manufactured by Behringer — a German-founded music technology company now headquartered in China and known for producing affordable versions of industry-standard equipment. In the modular synthesiser world, Eurorack is the dominant format: a standardised system of modules, power distribution and mechanical dimensions that allows modules from hundreds of different manufacturers to be used together in the same case. Behringer produces both Eurorack modules and cases (racks) designed to house them.

What the Eurorack Standard Means

The Eurorack format was defined by Doepfer in the 1990s and has since become the de facto standard for modular synthesiser hardware. Modules are 3U tall (approximately 128.5mm), powered by a ±12V and 5V bus, and measured in horizontal pitch (HP) units — each unit being 5.08mm wide. A case provides the mechanical mounting rails, power supply and bus board that modules connect to. Any Eurorack case accepts any Eurorack module, regardless of manufacturer. A Behringer Eurorack rack case therefore accepts modules from Moog, Make Noise, Intellijel, Behringer or any other manufacturer producing modules in this format.

Behringer's Eurorack Case Range

Behringer's most prominent Eurorack cases are the Go! series: portable cases in 36HP and 62HP widths, designed for compact, mobile use. These include a built-in power supply and bus board, padded carry case and end cheeks. The 62HP Eurorack Go is sufficient for a small, focused patch — around 6–8 modules depending on their widths — and is light enough for transport to studios or performances. Behringer also produces the larger RD-9 and system-level packages, but the portable Go cases are the most widely purchased for standalone use. For buying recommendations, see the buyer's guide. For beginners, see the beginner's guide.

Power Supply and Bus Board

Every Eurorack case must provide power to its modules via a bus board: a PCB with a series of 16-pin Eurorack power headers to which module power cables connect. The bus board distributes ±12V and +5V rails from the case's power supply unit. Module power draw is specified in milliamps per rail; the total draw of all modules must remain within the supply's rated capacity. A Behringer Eurorack rack in the Go series uses a compact internal power supply rated at 800mA or 1200mA depending on the model — sufficient for most combinations of small to medium power draw modules.

Who This Format Suits

Eurorack modular synthesis appeals to musicians who want direct, hands-on control of sound at the signal level — patching oscillators, filters, envelope generators and effects together with patch cables to create sounds that are not possible with conventional synthesis instruments. It is not the most accessible entry point to synthesis: it requires understanding of signal flow, voltage control and patching. However, starting with a compact case and a handful of well-chosen modules — rather than attempting a large system from the outset — produces a focused, educational experience that builds knowledge progressively.

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