Thanks Ray. However this is a discontinued US product.
I bought mine used on eBay for $50 in 2012.
It does not promise to reduce jitter and that would reassure me.
Jitter doesn't enter into my calculations.
Digital Sources: CD player as transport, TV optical out, Oppo 93, HDRadio, Focusrite Clarett 4pre, USB from PC via Topping D10 digital outs,
Connections: primarily optical, but coax when necessary, more convenient, ran out of ports, whatever.
Digital Sources -> Switch -> DEQ2496 -> MiniDSP OpenDRC-DI -> DAC -> pre -> amps -> main speakers
and
Digital Sources -> Switch -> DEQ2496 -> MiniDSP OpenDRC-DI -> DAC -> pre -> miniDSP 2x4HD -> subs
or
Digital Sources -> Switch -> DEQ2496 -> MiniDSP OpenDRC-DI -> DAC -> pre -> ADC inside JBL LSR 308 -> DSP/Chip Amps -> Speaker Drivers