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Re: Yep,

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Another problem is signal headroom. If two or more signals are added the dsd signal can saturate. They strongly advise to keep the signal level below -6dB of the full input range to prevent trouble.

PCM processing doesn't have this problem, a 24 bit signal handled by a 32 bit processor has plenty of processing offset.

I fail to see how this is a problem for DSD but not PCM. The fact that a 32 bit DSP has 32 bits doesn't make any difference if the 24 bit source is fed into the 24 most significant bits of the DSP.

But anyway, I think an important point about bass management is getting lost in this discussion. Even if you use a 128 bit DSP running at 384 KS/s, you're still not going to get transparent bass management. The filter characteristics aren't dependent on the sample size or rate. Adding additional filters into the playback chain is always going to degrade the sound somewhat no matter how they're implemented.

Dave


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