Very good Mel!
I think a mic preamp perhaps on a daughter board with special consideration to low noise components, good equalization, layout and filters, and a low impedance output to feed the QMX A/D converter would be an excellent addition to the QMX. Depending on the dynamic range of the A/D converter and a higher input signal, one might not need the spur removal with the internal mic and second A/D converter.
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I have some small mic preamp boards, and designed a discrete one for a dynamic mic I had. I will ?have to give it a try if the Pro 7 doesn¡¯t work well.
