I have owned the SE version of the Bricasti M1 D/A converter for several years. It's my reference DAC. When, recently, I became aware of the availability of the factory-installed MDx Processor Board upgrade, I packed up the M1SE and sent it off to the Bricasti factory, which is in Shirley, Massachusetts, northwest of Boston. The factory-installed MDx upgrade costs $1000—a lot less than the $10,000 it costs today to buy a new M1SE with the MDx board.

It's rare for a Stereophile reviewer to review two loudspeakers in a row from the same manufacturer, but then these are unusual times. Because of the pandemic, Magico's M2s got stuck here for a year (I know: poor me). By the time they were packed up and shipped out, it was time for a long-scheduled review of the less-expensive, more-massive Magico A5 ($24,800/pair).