We did three tests in studio one the first with the minimum of 12 measurements in the listening position, and the second with the full 32. Monitoring comprised a pair of Alesis Monitor One MK2s with a Genelec powered sub (ARC works fine with subs, by the way), which is a typical project studio setup with a balanced, neutral sound. To evaluate ARC, we started in 'studio one' - a small room, about 11x10' with a low 7' ceiling, carpet and some acoustic treatment (diffusers and two bass traps). Each curve can be given a name and a picture of some speakers assigned to it - handy when using multiple monitoring setups. You need at least 12 measurements to proceed to the last stage, where the compensatory EQ curves are generated and stored for use, but you can take up to 32 for more precise results. It´s essential to take the initial measurement from the centre of your listening position and then in an alternating left/ right symmetrical pattern, which is actually easier than it sounds. At step three, you set the required volume for the test signals that the software pumps out to analyse your setup, before step four, where measurement proper begins. The measurement software is a standalone application and is extremely easy to operate, with on-screen instructions. Also, ARC is calibrated to work only with the supplied mic - using another model will give inaccurate results To avoid soiling the results, you must use a clean, uncoloured input channel with phantom power for the measurement mic.
IK boasts that, unlike other systems, it corrects frequency and time domain issues (such as phasing), while keeping within the inherent frequency limits of your speakers.īefore you can use the ARC plug-in, you have to pull out a mic stand and get the measurements out of the way. Powered by Audyssey's existing MultEQ technology, ARC is designed to provide a wider 'sweet spot' and to correct multiple listening positions rather than improving just one while compromising others, as is often the case with conventional EQ.
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