Well in the DSP8000 usermanual from 2000 Meridian could deliver/support
176.4kHz or 192kHz supported with special firmware
"
Specification
Digital inputs and outputs
� 2 x cable digital inputs, 75W, IEC958, 44.1-96kHz. FIFO locks at 44.1, 48,88.2, or 96kHz � 150ppm, PCM or MHR encoding.
� 176.4kHz or 192kHz supported with special firmware and cabling; details available on request."http://www.Meridian.co.uk/handbooks/d8kuser.pdfI just guess we have to request full support, since we get downsampled 192Khz to 96Khz

And yes it is a so called "myth" that one can hear difference between 96 and 192Khz.
I just what my system to deliver what it recives - what comes in goes out

In Norway we have 2L that deliver original recordnings in 24bit / 192Khz.
http://www.2l.no/Just my 192 cents
PerS