Solid State Power Amp Reviews

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Martin Colloms Posted: Jun 03, 2007 Published: Dec 03, 1999 0 comments
Rumor had it that if the MF2500 amplifier had gotten any better in development, Conrad-Johnson would have had to include it in their "Premier" series. However, C-J's intention was to hold to the lower price of their established MF series, and so they have. Rated at 240Wpc and retailing for $3495, the '2500 is the core model of Conrad-Johnson's current range of "MF" power amplifiers. Its companion MF2250 offers 120Wpc, while the MF5600 delivers 120Wx5 for multichannel home-theater applications.
Jonathan Scull Posted: Oct 03, 1999 0 comments
Recently I found myself on the phone with Linn's chief design engineer, Bill Miller, talking about switch-mode power supplies. Affable Mr. Miller was ensconced in Linn HQ in Glasgow, Scotland. After a bit I inquired if Head Man Ivor Tiefenbrun was about the manse, and was quickly handed over. "You're such a cheeky guy. Why'd you call it the Klimax?"
Larry Greenhill Posted: 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.)
Michael Fremer Posted: Sep 04, 1999 0 comments
I've heard my share of Krells, Levinsons, Rowlands, and the like in other people's systems—expensive solid-state amplifiers are not my usual beat. With the exception of an inexpensive Adcom a few years back, for more than a decade I've owned and reviewed only tube amps. In fact, until the $7500 Ayre Acoustics V-1 showed up, I'd not had one in my system. Similarly, I'd had only tube preamps until I reviewed the Ayre K-3, which so impressed me that I asked to hear the more expensive K-1—and ended up buying it.
Robert J. Reina Posted: Mar 03, 2007 Published: Aug 03, 1999 0 comments
As a reviewer who has focused on seeking out high-quality audiophile gear for cost-constrained readers, I'm embarrassed to say that the flagship RB-991 stereo amplifier is the first Rotel product I've had in my house. (To be fair to myself, this 38-year-old family-owned company did not develop a large US market presence until this last decade.)
Robert J. Reina Posted: May 02, 2004 Published: Aug 01, 1999 0 comments
The story of New Acoustic Dimensions, aka NAD, begins in the late 1970s. The company was founded as a dealer distribution collective to design and market reasonably priced serious high-end gear to cost-constrained audiophiles. By eliminating needless features and focusing manufacturing in low-cost production facilities, NAD has successfully delivered audiophile-quality gear for 20 years at prices little more expensive than mass-market department-store schlock.
Jonathan Scull Posted: Jun 06, 2004 Published: Jun 01, 1999 0 comments
Pass Laboratories' X amplifier series represents the efforts of designer Nelson Pass to prove that simple linear amplifier topologies can be scaled to provide high-quality audio performance at very high power levels. The handsome X1000 monoblock under scrutiny here, the largest and most powerful amp in the Pass stable, makes 1000W into 8 ohms and a mighty 2000W into 4 ohms. The amplifier has no global negative feedback, and only two gain stages: the front-end provides all the voltage gain and feeds a high-current follower stage.
Jonathan Scull Posted: Mar 28, 1999 0 comments
What fascinates me about the High End are the electric personalities behind it. Manufacturers typically invest so much of themselves in the products they make. It's a divine madness—they do it because they have to. They're driven to it with a real sense of mission and excellence. But God forbid you criticize any of their offspring...ooo-la-la!
Kalman Rubinson Posted: Mar 07, 1999 0 comments
I first saw and heard SimAudio's Moon amp and preamp at WCES two years back, and something about their aesthetics appealed to me: Canadian ruggedness coupled with a decidedly French panache. I remember that those attributes also characterized the demo's sound, although I can't recall the speakers or the sources involved. At succeeding shows, it gradually dawned on me that the Moon components were the fixed elements in a succession of impressive demos.
Jonathan Scull Posted: Oct 10, 2004 Published: Jan 01, 1999 0 comments
Without passion man is a mere latent force and possibility, like the flint which awaits the shock of the iron before it can give forth its spark.—Henri-Frédéric Amiel
Jonathan Scull Posted: Sep 02, 1998 0 comments
How much power do you really need? How much power can you actually use? What's necessary, and what's icing on the cake? And does anyone really need 1000Wpc?
Thomas J. Norton Posted: Mar 08, 1998 0 comments
Kinergetics Research was a name to be reckoned with in the early days of CD, when they produced some of the earliest well-received, audiophile-grade CD players. They've branched out since then, producing amplifiers, preamps, subwoofers, and surround-sound processors. In fact, they're so busy with such products that they no longer build CD players! The last Stereophile review of a Kinergetics CD player appeared way back in 1993.
Wes Phillips Posted: 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.
Steven Stone Posted: Apr 13, 2008 Published: Nov 13, 1997 0 comments
We all have biases. The trick is knowing your biases so they don't get in your way. Mine are pretty obvious. I don't like "fussy" gear that demands special care and feeding. I'm lazy—I want to just turn stuff on and begin listening. Perhaps that's why I have a positive bias toward Nelson Pass's designs. They're reliable, untweaky, and usually sound good.
Michael Fremer Posted: Oct 17, 1997 0 comments
Prejudice is bad—whether it's directed at people, places, or things. You know how it goes: digital is "bright," analog is "warm," solid-state is "brittle and etched," tubes are "smooth and soft" dynamic drivers are "low-resolution," electrostats and planars are "high-resolution" copper wire is "smooth," silver is "bright," etc. While putting everything that crosses your path into one box or another makes life simpler and seemingly more organized, the truth, musical or otherwise, usually gets mutilated in the process. Not that we all don't have preferences—but those are not the same as prejudices.

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