The Cable Company's 16th annual Summer Against Hunger is anything but a feel-good gimmick. Thanks to ingenious leveraging by Robert Stein, company founder, every dollar spent on purchases from The Cable Company in the month of August results in almost $2 donated to a specific project of C.A.R.E., a leading humanitarian organization fighting global poverty. Given that C.A.R.E. is one of the more efficient charities around—over 90% of donations go directly to programs and recipients, rather than to administration—this means that for every $100 purchase you make during the month of August, a donation of over $180 will go directly to people and communities in need.

Blind though I am to the allure of blind testing, I can appreciate some degree of review-sample anonymity: Distinctive products elicit distinctive responses, but a plain black box encourages us to leave our prejudices at the door. It asks of us a certain . . . objectivity.

So it was with the Micromega AS-400 digital source/integrated amplifier ($4495), the anonymity of which was compounded, in my case, by a generous helping of forgetfulness: I suppose I was told, ahead of time, that this was a class-D amplifier, but at some point in time before my first at-home audition I apparently killed the brain cells responsible for remembering that fact. So I was innocent of conscious prejudice when I listened to this elegant cipher of a box and wrote, in my notes: "Dynamic, dramatic, and almost relentlessly exciting with some recordings. Imbued pianos with almost too much dynamism for the room—too much being very good!—but lacked some 'purr' in the die-away. Basically fine and fun. Wish it had a little more color and spatial depth."

Things move fast in multichannel. No, I'm not referring to the speed of sound effects as they whip around a room—let's leave that for the home-theater mags. I'm talking about audio technology. Since I began writing this column in June 2003, we've seen serious technological changes almost annually, some driven by real needs, some imposed by marketing considerations. To me, the rate of change seems strikingly rapid, compared to that of the products I review for the main portion of Stereophile, based, as they are, in the two-channel world.