Raul, Good to know I could shut down my 3160 before amplifiers, but I will continue to do the normal routine; amplifiers first. It's not a hardship.
I took a look at the Stereophile review of the Linto. Apparently it has a switching power supply and a highly compact-ized audio section using SMDs and op amps. It's a simple box construction, and the S'phile reviewer made no mention of a muting function. Not much to go on.