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- Jan 5, 2024
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I am interested in the NAD C658, despite the unflattering measurements Amir observed, as it seems to have a really nice feature set, including Dirac room EQ. One question I have is, when running Dirac for stereo listening, how does it deal with nulls in the bass region (<100hz)? I know that one must be very careful about boosting bass as it can lead to the power amp clipping and/or distortion in the woofers. I've read that Dirac starts with a -10db adjustment to make extra headroom, and perhaps this will mitigate concerns about clipping as long as you don't jack up the volume too high; but, isn't it still possible for the woofers to distort with upwards of 10db EQ boost (depending on speaker ability of course)? Or is Dirac smart enough to not make such drastic adjustments or possible to set it so that it only cuts and doesn't boost? I suspect this is not a big concern if you have a sub and are able to high pass the main speakers at an appropriate frequency (e.g., 90hz), which would protect your speakers from over-exertion, hence the question about applying Dirac to a 2 channel setup without subs. Curious what this looks like in practice.