Solid State Power Amp Reviews
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Michael Fremer Feb 16, 2003 0 comments
Thirty years ago, the upstart audio company NAD revolutionized the manufacturing of consumer-electronics components by "internationalizing" the process. Instead of physically making products, NAD hired a project team in one location to design a product that was then built at a sub-contracted factory located elsewhere. The arrangement allowed NAD to go into business with relatively little capital outlay and low overhead. Other companies have since copied this ingenious business model, and, as transportation and communication have improved, doing so has become easier and more efficient. It has brought prices down and quality up—mostly in the low and middle segments of the high-end audio and video markets.
Art Dudley Jan 26, 2003 0 comments
Modern hi-fi is little more than a way of getting electricity to pretend that it's music. Of course, good source components remain all-important, and even if loudspeakers are imperfect, most of us can find one or two that suit our tastes, if not our rooms and the rest of our gear.
Larry Greenhill Nov 08, 2002 0 comments
Talking to fellow audiophiles, I sometimes hear generalizations about power-amplifier design: "High-power amplifiers don't sound as good as low-power amplifiers." "Tube amps are more musical than solid-state amps." "Class-A circuit designs always sound better than class-AB." "Bridged amplifiers don't image precisely, throw deep soundstages, or have the transparency of non-bridged output stages." Etc.
Kalman Rubinson, Sam Tellig Oct 15, 2002 0 comments
I have a way of grating on people's nerves. Ask Marina, my wife. She calls it my "mean streak."
Paul Bolin Oct 13, 2002 0 comments
Revolutionary is a word that's tossed around all too lightly in the world of audio. The understandable impulse to tout every new development as a quantum leap forward in sound reproduction has made it difficult to sort out the evolutionary from the truly groundbreaking. And there's not that much left to do in amplifier design that is worthy of being described as "revolutionary," or so it seems. Vacuum-tube circuitry has been thoroughly understood since the late 1940s, and 40 years of development of solid-state has rendered it, in its finest implementations, a worthy competitor and alternative to the venerable tube.
Jonathan Scull May 12, 2002 0 comments
As we all know, it's the sound that counts. However, good looks enhance pride of ownership, and Theta Digital's class-AB, 400W Citadel is as handsome a monoblock as these jaded eyes have laid eyes on.
Kalman Rubinson Mar 30, 2002 0 comments
What could be easier to review than a power amplifier? No features or functions aside from inputs, outputs, and a power switch. So when Jonathan Scull asked if I could help out by taking on the Rotel RB 1080, which another reviewer hadn't been able to get to, I accepted the assignment. Before I could click my heels and say "FedEx!" twice, Rotel's 200Wpc RB 1080 had appeared.
Michael Fremer Jan 10, 2002 0 comments
If your audiophile habit goes back more than a couple of decades, you're probably doing a double take looking at the Smart Devices 2X150VT. Looks like a Hafler DH-200, doesn't it? That's because, at its core, a Hafler DH-200 is exactly what it is. Smart Devices doesn't name names in its brochure, but they do say that "You may recognize this amplifier as one of the dominant premium performers of the 1970s and '80s"—a reasonable enough description of the MOSFET-output DH-200, which combined outstanding sound with a very reasonable price—especially if you built the kit.
Jonathan Scull Mar 14, 2001 0 comments
While walking home from the office the other day I passed a gleaming, perfectly detailed Harley-Davidson, lightly customized, as many are these days. I didn't stop and drool, but I couldn't unsnap my eyes from it. As I drew parallel to that hawg, a Ricky Martin look-alike threw his leg over the saddle and thumbed the starter. No, you don't have to be a tattooed, beer-gutted redneck anymore to rear up and slam down on a kick-starter of one of those beasts. These days, it's all done with the push of a button. Dude.
Kalman Rubinson Mar 04, 2001 0 comments
The word on Bel Canto's upsampling DAC was already out when I visited their room at the 2000 Consumer Electronics Show looking to get one of the first samples. But despite my protestations, all Bel Canto's Mike McCormick wanted to talk about was their company's new digital amp, the eVo 200.2. Sure, there's a future out there in which all sources will be digital and D/A conversion will occur in the speaker (or later?). But today, I see no practical advantage in a digital amplifier with only an analog input. It may be more efficient and it may be new technology, but the amplifier has got to stand on the same footing as any analog design and justify its existence by the way it sounds. The eVo did make a good case for itself at the demo, so I signed up to get one for review.
Michael Fremer Mar 04, 2001 0 comments
Keith Herron plopped himself down in my listening chair and smiled, clearly pleased with the sound of my system now that his M150 monoblock power amplifiers had been substituted for my Musical Fidelity Nu-Vista 300. He began to tell me why.
Kalman Rubinson Feb 28, 2001 0 comments
I've been attending the annual Consumer Electronics Show for years, and usually come away with the impression that there are too many "me-too" products. I see a numbing similarity of approach of manufacturers within a chosen discipline: solid-state power amps in black and silver bristling with heatsinks, single-ended triode amps with their glow reflecting from bronze or wood panels, MCPU/DSP-centered devices with sleek, flat cases and intimidating remote controls, etc.
Brian Damkroger Jan 07, 2001 0 comments
"Be careful what you wish for, or you just might get it."
Kalman Rubinson Nov 01, 2000 0 comments
Back in 1992, Robert Harley's Stereophile review of the McCormack DNA-1 and Parasound HCA-2200 amplifiers (April 1992, Vol.15 No.4) and the accompanying technical measurements piqued my interest. So, with great curiosity, I arranged to borrow a DNA-1 to audition, along with competitive amps from Aragon, Bryston, and PS Audio. They were all a leap ahead of my Adcom GFA-555, but it took an act of great courage to accept that, despite its less-than-stellar measured performance, the DNA-1 was my favorite. The bottom line was that the DNA-1 excelled at driving my Apogee Duettas to make lively and harmonically pure sounds. I bought my McCormack DNA-1 amplifier before I began reviewing equipment for Stereophile, and it still occupies an honored place in my system.
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