Music in the Round

It seems more and more that I'm reviewing equalization products in this column, and that such components are less often dealt with in the magazine's formal equipment reports. But it's not as if the problems created by room acoustics affect only multichannel systems. Stereophile has not ignored the topic—see the many reviews of physical and electronic room-treatment products posted on this website—but months can pass without publication of a review of such a component. Meanwhile, multichannel devotees such as I seem to talk about almost nothing else—and here's why.

After going so far off the beaten path in my last column, with examinations of digital signal processing (DSP) from miniDSP and Illusonic and multichannel in-room measurements, this month I take a look at and listen to a new preamplifier-processor from Yamaha, along with its companion multichannel power amplifier. The Japanese company (footnote 1) was a pioneer in digital signal processing (DSP) and multichannel sound, but for a long while now has been swimming in the mainstream of audio/video receivers and home theater.

Make It Simple. . .
Ah, for the old mono days. I remember assembling my first audio systems in my early teens and as a novice—things were easy. My first amp had four RCA input jacks, each clearly labeled and corresponding to an identically labeled setting on the input selector switch. There were screw-down speaker connectors for 4, 8, and 16 ohms, and ground. Tape output was defaulted to whatever input I was listening to. The amp had but four knobs: Input Selection, Volume, Bass, and Treble. And although it would seem almost impossible to go wrong, I did exercise focus and care as I tended to my first setup.

Sometimes, things happen so fast it's almost unsettling. DSD is the high-resolution recording format used on SACDs and I closed my May column with the expressed hope that the exaSound e18 multichannel DAC would eventually be able to decode DSD data, that Oppo would implement DSD streaming in its universal players, and that I'd be able to get my hands on a working trio of Mytek DSD DACs. I didn't expect that, even before that issue went to press, I'd have to add a footnote (p.61) indicating that stereo DSD streaming was a reality for the exaSound e18, and that Oppo had made available "test" firmware to empower their universal Blu-ray players for stereo and multichannel DSD. On March 26, Oppo publicly announced that this DSD capability was part of the comprehensive "Public Beta Test Release" made available that day. Then, with the May issue not yet hitting the streets, I got a proper multi-Mytek setup. I had a lot of catching up to do.

Growing up as an audiophile in the 1950s, I always aspired to owning Marantz equipment, and finally attained that status when, late one night in 1974 in Greenwich Village, a friend found a Model 8 amp sitting on a pile of discards on a curb. He quickly ran for his car, and scarfed up the amp and a pair of Acoustic Research AR1 speakers. All turned out to be in perfect working order, though their appearance reflected their history of ill-use. The speakers went into his machine shop—but I got the Model 8! Few products have ever given me so much pleasure and pride; Marantz will always occupy a warm spot in my heart.

I'm writing this in the dog days of a hot August. Over the past few months, a couple of interesting devices have accumulated, but were bumped from the column in favor of bigger things, as it should be. So this column is an end-of-season close-out.