CAF Group Specifications for Rane Amplifiers

Audio product specifications always seem contentious. But they should be more like Cheerios – they are what they are. The trouble with audio specs is that not all companies follow standards on measuring and especially publishing specifications with the detail required to make them useful. To make valid comparisons between different products, or implement them in systems effectively, the details are imperative. It’s still mostly a free-for-all – especially with the exaggerated “marketing” numbers often seen.CAF Group

This is why Rane was excited to see and support the work of both the CLF Group (Common Loudspeaker Format) and the CAF Group (Common Amplifier Format). These websites are self-explanatory and the work of SynAudCon’s Pat Brown at And no, Rane still does not make loudspeakers, although maybe the industry needs more line arrays? Just kidding.

Approaching 15 years ago, to make it easier to compare audio specifications or to simply understand them, Rane wrote this Audio Specifications RaneNote on precisely how specifications are measured, written and intended – or should be. There are many equally defensible and valid methods to test a product’s performance and specify the outcome. Rane publishes a very detailed data sheet for every product we make, and now we’re simply giddy to be able to publish a second independent specification sheet for each of Rane’s power amplifiers. For our customers, this means easier comparison and workflow when implementing or designing systems. Always a great thing.

In our continuing spirit of espousing great and cogent intent, Rane is pleased to publish the independent Common Amplifier Format Group specifications for all Rane power amplifier models:

MA 3

MA 4


One analogy for comparing the different answers you’ll see between Rane’s published amplifier data and this new CAF Group data is the audiophile world’s common practice. You’ll find multiple reviews of the same audio device in different publications, each with independent yet slightly different test results. We like this since it exposes the real audio nerds who study and thrive on the differences in measurement and publication methods. Keep pushing those pressure waves.

Mother Load full of mineral oil

Mother Load full of mineral oil

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