Brian Damkroger

Brian Damkroger  |  Jun 14, 2013  |  17 comments
In the September 2005 issue (Vol.28 No.9), I reviewed Simaudio's first reference-quality power amplifier: the 1000W, 220-lb Moon Rock monoblock ($37,000/pair). At the time, the Rock was a dramatic departure for Simaudio, then primarily known as a maker of midpriced gear that was good for the money. I found a lot to like about the Rock, concluding that while it wasn't quite up to the standard of the best superamps of the time, it was very good—and, for Simaudio, an admirable first shot at the state of the art.
Brian Damkroger  |  Nov 09, 2012  |  6 comments
I've heard a lot of great audio components over the years, but even in that steady stream of excellence, a few have stood out as something special. These are the products that, in their day, set a new standard for performance, and many of them are ones I wish I'd hung on to. Among these products are three preamps from Audio Research: the SP3A, the SP6B, and the SP10 (footnote 1). I know I'm not alone in viewing these models as classics.
Brian Damkroger  |  Jan 05, 2012  |  1 comments
Saying that Sutherland Engineering builds a nice line of phono stages is like saying that the Porsche 911 Carrera is a nice line of sports car. The Sutherlands all share common design philosophies, features, and sonic attributes—but just as ramping up from Porsche's classic Carrera Coupe ($78,000) to the GT3 ($115,000) or the Turbo S Cabriolet ($172,000) increases the level of performance and distills the Porsche experience down to its essence, ascending the Sutherland line from the PH3D ($1000) to the 20/20 ($2200) to the Hubble ($3800) buys more of what Ron Sutherland is all about.
Michael Fremer, Brian Damkroger  |  Oct 24, 2011  |  0 comments
According to Parasound's founder and CEO, Richard Schram, the Halo JC 3 began as a phono-preamp retrofit for the JC 2 line stage, with separate small circuit boards for each channel. The smaller the board, the better, Schram says, so as to attract less noise than do larger boards, whose many copper traces can act as antennas.
Brian Damkroger  |  Jul 22, 2011  |  0 comments
It seems the obvious way to build a loudspeaker: one driver, no crossover, full range.

Instead, most speakers work this way: Complicated electronics split the audio signal into pieces, adding various colorations and phase shifts along the way. The pieces are distributed to different drivers, each of which adds another unique set of characteristics. We then expect these fragments of electronic signal to be brought together again in a continuous, coherent reproduction of music. We agonize over different cable routings or which contact cleaner to use, and yet we calmly accept this grotesque sausage-making way of building speakers. It's ludicrous.

Brian Damkroger  |  May 16, 2011  |  3 comments
Should an audio component accurately reproduce the signal it's fed, or should it evoke the sound and feel of live music? Accuracy or musicality? This question has been at the heart of high-end audio since its inception. Back then, the question often took the form of the tubes-vs-transistors debate. Proponents of solid-state pointed to the far superior measured performance of transistor designs, and claim that they thus more accurately reproduced the input signal. Tube lovers steadfastly maintained that their gear sounded better, more natural—more like music. Since then, both camps have eliminated the obvious colorations of their respective technologies, and the levels of performance of today's best tubed and solid-state gear have converged. At the same time, the circuits themselves have blurred into hybrids of various sorts, different mixes of devices and circuits.
Brian Damkroger  |  Feb 25, 2011  |  0 comments
Why no batteries?

It seemed a simple and obvious question, but I couldn't get an answer out of Ron Sutherland. Why did his new 20/20 phono preamp use an AC power supply instead of batteries? I asked directly, I asked repeatedly, I tried framing the question in different ways, all to no avail. Did the AC supply make it sound better? Was it less expensive to build? Were potential customers turned off by having to replace batteries once every year or two?

Michael Fremer, Brian Damkroger  |  Dec 27, 2010  |  0 comments
Ron Sutherland has devised the Timeline, a device for testing the 33.33 and 45rpm speeds of turntables. It's housed in a disc of aluminum and Delrin that fits over the platter spindle. Turn it on, and an LED shoots a red dash of light at the wall (if there is one) behind your turntable. If the dash doesn't move, the speed is correct. If it drifts to left or right, you'll need to adjust the 'table's speed. Unless your wall has hash marks, there's a bit of subjectivity involved, and at $399 the Timeline isn't cheap, but Sutherland says he's not making much money at that price, and that it will take a lot of sales to recoup the R&D he's put into designing something as precise as he claims the Timeline is.—Michael Fremer
Brian Damkroger  |  Jun 28, 2010  |  0 comments
Call me shallow, but what first attracted me to Audience's Au24 cables when I reviewed them in August 2002 was their looks. In contrast to superstiff cables as thick as garden hoses, the Au24s were slender and elegant. They were wonderfully flexible, too, and even their custom-made RCA plugs were slim and easy to handle. Instead of having to fiddle with a system of locking collet and barrel, merely slipping them on resulted in a tight, solid connection. Compared to the Au24s, a sizable number of audiophile cables seemed excessive, even a little foolish.
Brian Damkroger  |  Jun 16, 2010  |  0 comments
Spiral Groove's new Centroid tonearm ($6000) arrived just a few days before press time, so it would be risky to say anything definitive about it. But I will take that risk: using the system described in my review of the SG2 turntable, this may be the best tonearm I've heard. Its sound is different in ways that will open people's ears, and I predict that it will affect the design of every tonearm from now on. The Centroid's design deserves and will await full coverage in its own review, but here are the basics: It's a fluid-damped unipivot design unlike any other that gives the user fine adjustment of all relevant parameters.

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