Bryston 0.5 B is another preamp I will vouch for.
Coincidentally upon looking there happens to be a SUMO that is available https://www.audiogon.com/listings/solid-state-sumo-athena-0620-preamplifier-2016-04-11-preamplifiers...
Coincidentally upon looking there happens to be a SUMO that is available https://www.audiogon.com/listings/solid-state-sumo-athena-0620-preamplifier-2016-04-11-preamplifiers...