Hi Huw,

Mixing 18 bit and 24 bit speakers on a system is fine, provided one realises that the processor's outputs must be limited to 48KHz max.

I ran a mixed DSP system with 24 bit fronts and 18 bit rears for a while, without any issues. Yes it is a compromise in that you don't get the best out of the 24 bit DSPs but as a transitional system there is no reason to avoid.

Regards,
Carl

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