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Mofi's Eric Clapton: Unplugged SACD was derived from 44.1kHz PCM

In this spectrogram, a representation of amplitude versus frequency of the tested track, the horizontal axis represents frequency, and the vertical axis represents amplitude.

The yellow arrow point towards the frequency response limit of the SACD (Blue) which is around 22 kHz, the same as like the original pcm source (white).

Beyond 20 kHz there is a hump which indicate the noise derived from the SACD production process.

This mastering of the SACD MOFI version is different from the other pcm digital versions, in that there is an attenuation above 10 kHz of up to 5 dB. No wonder we found that this SACD sound "dulled", "soft" and "closed-in".

The bass is also different by a few dB below 400 Hz (green zone). The original digital master is cut at 22 kHz (yellow arrow). This mastering will have an impact on the sound balance, especially on the guitar and voice.

The hi-rez capability of the SACD is not exploited here because of the use of a digital master that max out at 44.1 kHz sampling rate.

Edits: 08/24/22 08/24/22

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