Kalman Rubinson

Music in the Round #80

Kalman Rubinson Sep 01, 2016

In January, I reviewed JL Audio's Fathom f113v2 subwoofer (footnote 1), which features, among other improvements over the original Fathom f113, a better multiband equalizer. The significance of this relates to the great influence exerted by room dimensions and acoustics on a loudspeaker's performance.

The matter of room acoustics itself relates to the Schroeder frequency: a transition point, usually between 200 and 300Hz above which a room will exhibit a high density of reflections that are analyzed statistically, and below which that room will display a limited number of discrete modal reflections. (Thus, it should not to be confused with the number of times that Beethoven's music appears in Charles Schulz's comic strip "Peanuts.")

Music in the Round

Music in the Round #79

Kalman Rubinson Jun 30, 2016

The SOtM sMS-1000SQ Windows Edition with AudiophileOptimizer and Roon: Not only does that very long name require finger-twisting shifts between upper and lower case, it really doesn't tell you what the sMS-1000SQ WE is.

Korean manufacturer SOtM, Inc. describes it on their website as a "music server based on Windows Server OS besides the original Linux [Vortexbox] OS based sMS-1000SQ." I'd describe it as a Windows-based PC that's designed and optimized to manage a database of music files and stream the music to local or networked DACs, and that supports multiple options for file management, playback, and target devices. (Hmmm: that's not much better, is it?)

Features

A Visit to Bowers & Wilkins

Kalman Rubinson May 30, 2016

In August 2015, I visited loudspeaker manufacturer Bowers & Wilkins in England. It was an exciting prospect to see the factory, and meet the people who designed and built the speakers I've been using for years. Of course, as the time of my visit approached, it was impossible not to speculate that something important was afootthere was growing Internet buzz that it was time for B&W to update its 800-series speakers. Nonetheless, B&W remained tight-lipped.

Audacious Audio Floor Loudspeaker Reviews

Bowers & Wilkins 802 D3 Diamond loudspeaker

Kalman Rubinson May 26, 2016

"This is getting to be a habit."

That's how I ended the first paragraph of my review of Bowers & Wilkins' 800 Diamond speaker, in the May 2011 issue; apparently, Stereophile's habit of reviewing models from B&W's 800 series remains unbroken.

Later in that review, I said that "The 800 Diamond doesn't look radically different from its predecessors." That doesn't apply to the 802 D3 Diamond ($22,000/pair). It's still a three-way system with tapered-tube high-frequency and midrange enclosures, stacked and nestled into a generous bass enclosure that's vented on the bottom into the space between it and its plinth.

Music in the Round

Music in the Round #78

Kalman Rubinson May 05, 2016

The number of devices that can constitute a home-audio streaming system ranges from onea laptop computer running a music program to play internally stored filesto x the unknown. These days we have storage devices, servers, streamers, renderers, bridges, controllers, players, and DACs, at least one of which is hoped to have a volume control. Any combination of these elements can be put in a single box and described by one of many new hyphenated product categoriesor can be given a name along the lines of exaSound's PlayPoint Network Audio Player: a model designation that at least hints at this product's ability to play music. Let's see what else it can do . . .

News

Finally, Child Alice via Kickstarter

Kalman Rubinson Apr 24, 2016

Some of my recent delights have come from recordings by BMOP, the Boston Modern Orchestra Project, under the direction of Gil Rose. So I was thrilled to hear that BMOP had recorded their highly praised performance of David Del Tredici's Child Alice, a sprawling romantic work for soprano and orchestra. Please go to www.kickstarter.com/projects/bmopsound/david-del-tredici-child-alice now and we will all be able to enjoy Child Alice. . .

Music in the Round

Music in the Round #77

Kalman Rubinson Mar 07, 2016

With the atomization of the playback of digital files into storage, servers, streamers, format converters, and DACs, I find that I've accumulated many miniature power supplies: small pods and wall warts. Most of these are generic switching devices made by companies other than the manufacturers of the components they power, and even those not designed for audio systems are, of necessity, at least adequate for the task. Because many of these supplies are indistinguishable from each other, I've taken to labeling them with sticky notes to remind me which goes with which component. Nonetheless, I'm concerned that they're no more than the commodity power modules available for a few bucks each on eBay. Whenever I think of the four or five of them clustered behind my equipment rack, I begin to suspect them of plotting revolt against the fancy gear they serve.

Solid State Power Amp Reviews

NAD Masters Series M22 power amplifier

Kalman Rubinson Mar 03, 2016

In the January 2015 edition of "Music in the Round," I reviewed NAD's latest Masters Series preamplifier-processor and multichannel power amplifier, respectively the M17 ($5499) and M27 ($3999). I was taken with both, but the M27 made a special impression. In many ways, it personified what a modern power amp should be: quiet, transparent, cool running, and compact. Its neat package of seven 180W channels inspired me to consider that stereo or mono versions of such a thing could supplant the ungainly monster amps I was using in my main system. So I asked NAD to send me not just one but two samples of their new two-channel power amplifier, the Masters Series M22 ($2999): Although this is a review of a stereo amplifier, I did want to have my front three speakers identically voiced.

Computer Audio Reviews Music in the Round Subwoofer Reviews

Music in the Round #76

Kalman Rubinson Dec 30, 2015

In my last column, in the November 2015 issue, I talked about Marantz's AV8802A preamplifier-processor and two accessories: UpTone Audio's USB Regen, and a DIY battery supply for my DAC. This month's column is all about accessories, and for me that's unusual. Some items, like interconnects and speaker cables, are usually considered accessories because they're not fundamental components (eg, source, amplifier, speaker), even though they're essential to getting any sound at all.

Music in the Round

Music in the Round #75

Kalman Rubinson Nov 05, 2015

Outside of the listening I do for this column, I always audition, assess, and review components without using any equalization or room correctionprimarily because I assume that most Stereophile readers listen in two-channel stereo, and that most aren't all that interested in EQ. Besides, two-channel is the tradition I come from, and my first instinct is to try to get at the essence of the individual component itself, without applying extraneous tools or accessories. John Atkinson's bench tests are based on the same philosophy.