A computer is not optimized for the uninterrupted streaming of audio data. It has rapidly become established wisdom, therefore, that the optimal means of extracting audio data from a computer's USB port is to operate that port in what is called "asynchronous isochronous" mode. This lets the receiving device, such as a digital-to-analog converter (DAC), control the flow of data from the PC. In theory, asynchronous USB operation (not to be confused with the asynchronous sample-rate conversion used in some DACs) reduces jitter to unmeasurable levels, depending on the accuracy of the receiver's fixed-frequency oscillator, which is used to clock the data to the DAC. By contrast, in the alternative and almost ubiquitous USB operating mode, called "adaptive isochronous," while the sample rate of the output data, averaged over a longish period, will indeed be the specified 44.1 or 48kHz, there will be short-term fluctuations, or jitter, due to the oscillator having to change its frequency every millisecond to match the uncertain rate of data flow from the PC.

Audio journalism is an unwitting form of pornography, albeit one that debases the soul with materialism instead of carnalism. It encourages—inadvertently, of course—the objectification of its subject matter, and can lead to Chronic Disappointment Syndrome, as well as a lifelong difficulty in forging healthy relationships with technology.

Those used to be just fun things to say. But now I worry they might be true, if only because thinking, reading, and writing about domestic audio have, of late, brought with them the chalky aftertaste of guilt.

After seeing Ambrose Akinmusire’s quintet at the Jazz Standard in New York City last Sunday night, I realize that, if anything, my recent blog posting sold him short—or fell short, anyway, in describing what makes him so remarkable.

Unlike many of the best young lions of recent years, Akinmusire is not aiming to expand the realm of jazz to include hip-hop, classical, Latin, or whatever. He is steeped in “the jazz tradition” and aims to deepen his stance within it—but his approach doesn’t seem the slightest bit retro. His trumpet tone, as noted earlier, has traces of Clifford Brown and Booker Little; but how he shapes that sound—as a player, a composer-arranger, and an ensemble-leader—is thoroughly distinctive. . .

Recent open house events at Innovative Audio Video Showrooms have been outstanding: well-attended by curious and passionate audiophiles; featuring beautiful, high-quality gear; showcasing excellent music played back on vinyl, disc, and via computer; and with several industry leaders on hand to provide demonstrations and feed interesting discussion.

(The last time I visited Innovative for one of these events, I stayed far too long and walked out into a man-eating ice storm that nearly shattered my soul, but, even then, it was still worth attending the event.)

So, I’m definitely looking forward to next Wednesday’s event, in honor of Dan D’Agostino and his new Momentum monoblock power amplifiers. Guests will have the opportunity to learn more about D’Agostino and his latest product, while enjoying music in a special environment. Members of Innovative’s staff are friendly, intelligent, knowledgeable, and eager to share their eclectic tastes in music and gear.

Refreshments will be provided, the weather should be decent, it should be a good time. Space is limited, so be sure to reserve your place: (212) 634-4444 or info@iavny.com.

Innovative Audio Video is located at 150 East 58th Street, New York, NY. I hope to see you there.

On Saturday night, after a long day of listening, writing, and chatting, I couldn’t force myself to enjoy another dinner or even have a beer. Things come to a dull end where all systems sound the same, I forget what it is I’m supposed to be listening for, I can’t give the exhibitors and attendees the attention they deserve. So, instead of pushing myself further, I decided to head back to my room and post a few blog entries before packing my bags and going to bed. Earlier in the day, I had already begun to regret my decision to leave the show on Sunday morning: There were rooms I hadn’t visited, people I hadn’t met, songs and stories I hadn’t heard, and now I had run out of time. Nevertheless, as I succumbed to sleep, I could hear myself singing...

Definitely one of my two best sounds at Axpona, along with the BAT-Scaena room, was the Orion 4 dipole speaker (from $14,750/pair with analog line-level crossover), designed by Siegfried Linkwitz and with custom enclosures made by Wood Artistry. Quad-amped with two Bryston 9B four-channel amplifiers, a Pass Labs preamp, and a Marantz CD player, the "William Tell" section from Shostakovich's Symphony 15 had superb dynamic range, with a "quiet" quality that seemed like there was a lower level of spurious behavior from the room. This allowed a wealth of detail to be perceived even when the music was itself quiet.

Each Orion 4 weighs 85 lbs and uses five SEAS drive-units: two soft-dome tweeters, a magnesium-cone midrange unit, and two long-throw 10" woofers especially developed by SEAS for the open-baffle loading used by Linkwitz. The crossover frequencies are 90Hz and 1440Hz and the tweeters, the midrange unit, and each woofer are driven independently, though the woofers can be paralleled to allow tri-amping if only six amplifier channels are available.

You can see here the dipole nature of the Orion 4, with the rear-firing tweeter, the back of the midrange unit, and one of the woofers.

Though I have shown in the photo the prototype of the new BAT P1 phono cartridge, developed by Peter Lederman but with a feature unique to BAT that is said to reduce stylus jitter, the star of this large room was the pair of Scaena line-source speakers ($66,000/system) that were driven by BAT's new Rex tubed amplifier ($15,000, used here bridged for mono) but also proved unphotographable (at least by me). (You can find Jason Serinus' photo of the speaker at the 2010 Axpona here.)

The rest of the system included a Silver Circle Pure Audio 5.0 AC conditioner, Kubula-Sosna Master Reference cables, Critical Mass Systems stands, BAT VK-P10 phono preamp, BAT Rex line stage, Scaena subwoofers, and a Spiral Groove SG-2 turntable and Centroid tonearm. Listening to Marc Cohn's "Riding on a Ghost Train" and Miles Davis's "So What" from LP, it was though I were hearing these familiar pieces for the first time. There was a stability to the high frequencies, a clarity to the midrange, a depth to the low frequencies, that thrilled.