Solid State Power Amp Reviews

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John Atkinson  |  May 23, 1995  |  First Published: May 23, 1988  |  0 comments
I must admit, right from the outset, that I find reviewing electronic components harder than reviewing loudspeakers; the faults are less immediately obvious. No preamplifier, for example, suffers from the frequency-response problems endemic to even good loudspeakers. And power amplifiers? If you were to believe the older generation of engineers—which includes some quite young people!—then we reached a plateau of perfection in amplifier design some time after the Scopes Monkey Trial but well before embarking on the rich and exciting lifestyles afforded us by Reaganomics. (In the UK, it is generally felt by these people that the date coincided with the introduction of Quad's first current-dumping amplifier, the 405, in 1976.)
Thomas J. Norton  |  Nov 10, 2016  |  First Published: Apr 01, 1991  |  3 comments
I still remember reading about my first Mark Levinson product 14 or 15 years ago. It was a preamp. The model number escapes me, but it sold for over $2000. It was soon followed by the JC-2, designed by John Curl, which was a bit less pricey but still astonishingly expensive for a mid-'70s preamp. We've come a long way since then. The man, Mark Levinson, left the company that bore his name in the early 1980s and founded a new company, Cello. The company Mark Levinson became the core of Madrigal. It is a mark of their continued dedication to uncompromising high-end products that their bread-and-butter line remains the high-priced Mark Levinsons. They no longer have the Rolls-Royce of the audio market to themselves (in their early years, they made the never exactly inexpensive Audio Research products—ARC was certainly a contender for the same title—look like bargains), but they are certainly a leading player.
Larry Greenhill  |  May 08, 2009  |  First Published: Jan 08, 1996  |  0 comments
The No.331 is the latest iteration in a series of Mark Levinson 100Wpc, solid-state, stereo power amplifiers. Extensive cosmetic alterations, internal structural changes, and new circuit designs make it quite different from the No.27 and No.27.5 models that preceded it. These design refinements emanate from Madrigal Audio Laboratories' latest flagship amplifier, the $32,000/pair, 300W RMS Mark Levinson No.33 Reference.
Larry Greenhill  |  Sep 05, 1999  |  0 comments
My father could not resist buying electronic and photographic gear. As soon as he heard about a new Polaroid camera, or a new weather radio, tape recorder, or color television, he'd go shopping. He'd be even more eager to buy an updated version of what he already had, particularly if this meant there was a story to tell. He'd buy one for himself, and sometimes he'd give me and my three brothers one of our own for a birthday or Christmas gift. (I often thought he took more pleasure from giving to us than he did from getting his own.)
Wes Phillips  |  Jan 30, 1998  |  0 comments
Chances are you've never seen an amplifier quite like the Mark Levinson No.33H. That's because there's only one other amp that's anything like it: the Mark Levinson No.33, upon which it's based. Both amps are more tall than broad, looking almost as though they're resting on their ends; heatsinks cluster around their side-panels. In the city of the High End, the No.33 and No.33H are skyscrapers standing tall above the warehouses.
Larry Greenhill  |  May 22, 2005  |  0 comments
Although Mark Levinson Audio Systems components continue to be produced, the company's headquarters moved in late 2003 from the Madrigal plant in Middletown, Connecticut, to Harman Specialty's facility in Bedford, Massachusetts. There ML shares manufacturing and sales space with Harman's other high-end lines, Revel and Lexicon.
Larry Greenhill  |  Aug 24, 2003  |  0 comments
All high-end audio companies turn over their product lines periodically. Even those amplifiers I have depended on as references go out of production. Although my reference amplifier can remain a part of the reviewing sequence, readers won't be able to purchase a discontinued model and get the results I describe. Thus I am compelled to get a review sample of a new amplifier or speaker, and hope for the best.
Michael Fremer  |  Dec 07, 2012  |  18 comments
Mark Levinson founded Mark Levinson Audio Systems in 1972, but sold it, and the right to market audio gear under his own name, to Madrigal Audio Laboratories, then owned by the late Sandy Berlin, in 1984. Harman International bought Madrigal in 1995. As well as Mark Levinson, Harman's Luxury Audio Group now also includes digital processing pioneer Lexicon, speaker manufacturer Revel, and JBL Synthesis. The Mark Levinson brand is now headquartered in Elkhart, Indiana, at the Crown Audio facility, another Harman-owned brand. The No.53 ($25,000 each; $50,000/pair) is Mark Levinson's first new Reference series monoblock since the No.33, way back in 1993, when Madrigal owned the company. Like other Mark Levinson products, it is manufactured at an independent facility in Massachusetts.
Larry Greenhill  |  Aug 19, 2011  |  1 comments
"Larry, you have too many amplifiers!" exclaimed John Atkinson during a recent visit. This surprised me—I didn't think it was possible to have too many amps. While I'm not going to open an amp museum, I do have a starter collection of Mark Levinson amplifiers from different eras. This either makes me exactly the right or the wrong person to size up Mark Levinson's new No.532H.
Larry Greenhill  |  May 01, 2018  |  14 comments
When I reviewed the Mark Levinson No.536 monoblock, I said that its sound quality was second to none. However, its stratospheric price of $30,000/pair unnerved me—only seven of the 35 top-rated solid-state power amplifiers listed in the April 2017 edition of Stereophile's "Recommended Components" cost more, and a similar number (not the same models) deliver more power into 8 ohms. "But don't despair," I wrote—"Mark Levinson has just released a less expensive version of the No.536: the dual-mono, 350Wpc No.534 stereo amp ($20,000)." I requested a review sample of the No.534, to see if it matched the No.536's outstanding qualities of build and sound.
Larry Greenhill  |  Jun 22, 2017  |  16 comments
Dinesh Paliwal, CEO of Harman International Industries, was addressing engineers and the audio press in a crowded conference room at the opening of Harman Luxury Audio's new Engineering Center of Excellence (ECOE), in Shelton, Connecticut. Paliwal singled out as the ECOE's first beneficiary the Mark Levinson brand, with the goal of revitalizing it as Harman's flagship marque. (Other brands in the HII stable include Harman Kardon, Infinity, JBL, Crown, AKG, Lexicon, and Revel.) To achieve this, he gave the ECOE team access to Harman's R&D budget of $400 million; brought on Todd Eichenbaum, formerly of Krell, to be its Director; and hired 11 more engineers.
John Atkinson  |  May 27, 2014  |  First Published: Jun 01, 2014  |  6 comments
A year or so ago, in my review of the Pass Labs XP-30 preamplifier, I wrote that the heart of an audio system is the preamplifier, in that it sets the overall quality of the system's sound. But it is the power amplifier that is responsible for determining the character of the system's sound, because it is the amplifier that must directly interface with the loudspeakers. The relationship between amplifier and loudspeaker is complex, and the nature of that relationship literally sets the tone of the sound quality.
Michael Fremer  |  Sep 23, 2006  |  0 comments
Best known for its omnidirectional loudspeakers, the German manufacturer mbl also produces three complete lines of high-performance electronics that, despite being large and built to jewel-like perfection, are sometimes lost in the shadow cast by the dramatic-looking—and -sounding—Radialstrahler 101E, which I reviewed in October 2004.
Michael Fremer  |  Mar 19, 2012  |  3 comments
As large as a small file cabinet and weighing 223 lbs, MBL's most powerful amplifier, the Reference 9011, is a tour de force of electronics design and implementation that will set you back $53,000 if you're a single-ended stereo enthusiast, or $106,000 if you like pure balanced mono.
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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