Brian Damkroger

Brian Damkroger  |  Jan 12, 2010  |  4 comments
My last stop of the day, and of the show, was the Audio Research room. Dave Gordon showed me their new DS-650 (I'm not sure that the designator was DS) stereo amp and laughed that it was their "Magnepan amp." Yup, I agree. As I discovered when I paired a pair of MG-3.6s with Classé CAM-350s, while any competent 20Wpc amp will drive a pair of MG-3.6s adequately...any top-notch 300–400W amp will actually drive them well. Then Dave casually noted that the 650 was a class-D amp and told me to put my hand on its top. Sure enough, it was cool as a cucumber in spite of having been on and making music for several days. "The entire amp is ours, from the bottom up," Dave noted, "there's nothing standard or off the shelf in there."
Brian Damkroger  |  Jan 12, 2010  |  2 comments
My penultimate stop at THE Show, held for the first time this year at the Flamingo, was the Audience room, where they were playing a system full of new gear. Their line stage combines a relay-controlled autotransformer volume control and zero-gain active buffer. The unit has four inputs, all single-ended, and very clever switching to keep noise to an absolute minimum. Oh—it also includes a headphone amp and all of Audience's power and signal-transfer technology, in a sleek, compact package.
Brian Damkroger  |  Jan 10, 2010  |  First Published: Jan 11, 2010  |  4 comments
I started my first day at CES at the Immedia room, where Allen Perkins had a typically (for Immedia) great-sounding system, chock full of new gear—some so new that it doesn't even exist yet, as a product anyway. Starting from the top, there was the second-generation Spiral Groove SG-1.1 turntable fitted with a "production" version of his new tonearm. In this case, "production" means either "honestly, truly the very last prototype before production" or "the genuine first production version...that only differs from what we'll be shipping in a couple of non-functional details" take your pick. Either way, Immedia will begin shipping the arm immediately after the show.
Brian Damkroger  |  Jan 10, 2010  |  First Published: Jan 11, 2010  |  4 comments
The new Sonics Allegra speaker, shown here with Immedia's Allen Perkins (left) and designer Joachim Gerhardt (right in JA's pic), differs from the one I reviewed in January 2009, primarily in how the cabinets are attached. In the first series, the top, midrange and tweeter cabinet was solidly affixed to the top of the woofer box. Joachim Gerhardt decided to mechanically isolate the two cabinets to give the midrange and tweeter a cleaner environment in which to work, so they're now attached with an absorbent elastomer layer. To maintain the mass loading and resulting stability, however, there is now an approximately ½"-thick, stainless-steel plate attached to the bottom of the mid/tweeter cabinet. Simple, clever, and effective.
Brian Damkroger  |  May 26, 2009  |  0 comments
Over the course of his 30-plus years in high-end audio, Nelson Pass's designs have never been far from the leading edge. In his first Threshold amplifiers he pioneered the use of dynamically adjusting bias and cascode circuitry; then, in the later Stasis models, he switched gears to the simpler approach of pure class-A. All were innovative designs, and among the very best-sounding amps of their time, but were just warmups for what was to come. In 1991, Pass Labs introduced the Aleph 0, a class-A amplifier that was a startling departure from conventional solid-state designs and combined design elements generally thought mutually exclusive: transistors, single-ended operation, and the ability to output 75Wpc into an 8-ohm load. Not surprisingly, the Aleph 0 sounded like nothing else, and became the basis for the widely acclaimed series of Pass Labs amplifiers that evolved over the next decade.
Brian Damkroger  |  May 23, 2009  |  0 comments
If high-end audio were to carve its own Mt. Rushmore, whose faces would appear there—besides that of Stereophile founder J. Gordon Holt, of course? It's likely that no two audiophiles would ever come up with identical lists of subjects, but I wouldn't be surprised if they could agree on at least one name: Nelson Pass.
Brian Damkroger  |  Mar 03, 2009  |  First Published: Oct 03, 2001  |  0 comments
Everyone loves a bargain. Everyone loves finding an undiscovered gem. But for audiophiles on a budget, finding good, reasonably priced cables isn't a luxury but a necessity. In a $1000 or $2500 system, there simply isn't money for $500 interconnects or $1000 speaker cables. Even a $5000 system—which most of my well-educated, music-loving, affluent friends view as pretty extravagant, by the way—can't accommodate premium cables like the Nirvana, Synergistic Research, or Nordost models that we reviewers rave about as "critical to getting the most out of your system."
Brian Damkroger  |  Jan 25, 2009  |  0 comments
Time thins the ranks of specialist industries. Trends, products, and companies come and go. High-end audio is a poster child for this reality, and most veteran audiophiles have evidence of the casualties—literature or orphaned products, stashed away somewhere. But a small number of true believers remain true to their visions, and persevere to help advance the state of the art.
Brian Damkroger  |  Dec 01, 2008  |  First Published: Mar 01, 2000  |  2 comments
In the last year I've written about several components of a truly engaging system: the VPI TNT Mk.IV turntable and JMW Memorial 12" tonearm (February '99), Grado Reference cartridge; the Wadia 830 CD player (October 1999); and Thiel's CS7.2 loudspeakers (February 2000). I've recounted the evolution of my listening-room setup as well, and described its optimization using ASC Tube Traps and Art Noxon's MATT test in the February issue. The final piece of the puzzle, and the one I'll tackle here, was the cable package from MIT: the MI-330 Shotgun Proline interconnects and the MH-750 shotgun speaker cables.
Brian Damkroger  |  Nov 24, 2008  |  First Published: Aug 24, 2000  |  0 comments
Recently, I caught myself smiling at a tiny ad for Nirvana cables that proclaimed them to be "the quiet cable." My smile wasn't because the claim was outlandish, which it wasn't, but because it was so typical of Nirvana Audio Products—small, understated, and all too easy to miss. The ad could just have easily and just as accurately have read "Nirvana...the quiet company."

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