Tube Power Amp Reviews

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Michael Fremer Posted: Sep 06, 2013 Published: Sep 01, 2013 12 comments
Even as the gulf narrows between the sounds of the best solid-state and the best tubed amplifiers, most listeners remain staunch members of one or the other camp. Similarly, when it comes to video displays, the plasma and liquid-crystal technologies each has its partisans, though that conflict's intensity is relatively mild, perhaps because video performance, unlike audio, is based on a mastering standard that establishes color temperature, gray-scale tracking, color points, and the like (I'm deeply in the plasma camp). But in audio, the "standard" is whatever monitoring loudspeaker and sonic balance the mastering engineer prefers, which makes somewhat questionable the pursuit of "sonic accuracy." Still, in a power amplifier, a relative lack of coloration is preferable to amps that Stereophile editor John Atkinson has characterized as "tone controls"—usually, if not exclusively, of the tubed variety.
Art Dudley Posted: Oct 23, 2004 Published: Oct 01, 2004 0 comments
One of my best friends is a serious jazz collector with a side interest in good replay gear. The last time we got together over a meal, he asked, "What do you think is really the most important component in an audio system?" He might have added "these days": It's a subject we come back to from time to time.
Art Dudley Posted: Apr 05, 2013 1 comments
The challenge is biblical in character, if not in scope: A half year after railing, in these pages, against our industry's overabundance of products that cost more than $20,000, fate has given me such a thing to review.
Art Dudley Posted: Jan 07, 2012 6 comments
"Have you really listened to all those records?"

My guest, an occasionally nice person, didn't mean her question in a nice way. It was pointed and derisive: a needle intended to burst whatever it was that made me think filling a room with thousands of LPs was a good idea. She didn't wait for an answer—it would have been "Not quite"—but I half think she half expected me to see reason on the spot.

Art Dudley Posted: Mar 08, 2012 1 comments
Years ago, while editing Listener Magazine, I received a call from a record-company publicist with whom I was friendly: The drummer Ginger Baker, whose work I admire, was promoting a new release, and we were offered a 30-minute telephone interview with the artist. I jumped at the chance, but wound up leaving the article in the can—partly because it was so short, partly because its subject was so cranky. As with vacation trips to certain locales, second prize would likely have been 60 minutes with Ginger Baker.
Art Dudley Posted: Jan 28, 2014 Published: Feb 01, 2014 17 comments
Domestic audio is based on two simple processes: transforming movement into electricity and electricity back into movement. Easy peasy.

Audio engineers have been doing those things for ages. Have they improved their craft to the same extent as the people who, over the same period of time, earned their livings making, say, automobiles and pharmaceuticals? I don't know. But if it were possible to spend an entire day driving a new car from 50 years ago, treating diabetes and erectile dysfunction with the treatments that were available 50 years ago, and listening to 50-year-old records on 50-year-old playback gear, the answer might seem more clear.

Art Dudley Posted: Jul 01, 2014 3 comments
It's going to happen very soon.—Leonard Cohen, "The Great Event"

With a parts list that includes 18 new-old-stock Black Cat capacitors, 16 vintage-style Cosmos potentiometers, two Tango chokes, one Tango power transformer, and some of the loveliest steel casework I've seen on a contemporary product, no one could accuse Noriyuki Miyajima of skimping on the build quality of his company's only power amplifier, the Miyajima Laboratory Model 2010 ($9995, footnote 1). Then again, because the 2010 is an output-transformerless (OTL) tube amplifier, Miyajima-san spent considerably less on iron than would otherwise be the case. Think of the money he saved!

Art Dudley Posted: Apr 29, 2007 0 comments
"Men must eat, though angels be their guests."
—William Laird, "Träumerei at Ostendorff's"
Art Dudley Posted: May 27, 2007 0 comments
Today is Monday, February 5, and it's so buttercupping cold outside that the custodian couldn't get our school's oil burner started. Consequently, my daughter is home for the day, playing on the rug in front of the fireplace. (Santa brought a wooden castle and a fine selection of medieval figurines, some of which are headed for the dungeon as we speak.) I'm at my desk in the music room, on the upwind side of the house—and the wind is murder. The west wall is cold. The north wall is cold. The floorboards are cold. But the air inside is warm as toast: I'm driving my Quad ESL speakers with a Joule Electra VZN-80 amplifier ($12,000) that isn't at all bashful about squandering a goodly amount of energy as heat. I can't think of a more delightful quality for an amp to have, at least on a day like this.
Art Dudley Posted: Jul 29, 2007 0 comments
When audio designer Ken Shindo was a little boy, his father kept an enormous collection of 78rpm records in their home in Tokyo. During the final days of World War II, the Japanese authorities did their best to evacuate the city, but the elder Shindo was steadfast: He refused to leave, for fear that the records would be gone when he returned.
Dick Olsher Posted: Jun 30, 2009 Published: Jan 30, 1995 0 comments
Neither its rather pedestrian name nor Manley Labs' own literature gives much of a clue as to the 175 monoblock's special pedigree. Where are the bands, the fanfare?! After all, the rolling-out of a 6L6–based high-power audiophile-grade tube amplifier definitely qualifies in my book as a momentous occasion. Deplorably, such happenings are rare indeed; the 6L6 has been unjustly neglected in high-end circles.
Paul Bolin Posted: Sep 22, 2002 0 comments
There's something special about big tube amplifiers. No other audio component has such a primal appeal or can so quickly reduce grown (?) audiophiles to Homer Simpsons sighing, "Mmmmm...toooobs." EveAnna Manley, president of Manley Laboratories, understands the effect of high-powered tubes on the audiophile brain and shares the obsession. A Harley rider, mountain climber, and devoted music lover, she is one of the industry's most individualistic characters. You just have to appreciate a gal who ends each CES by blaring Rage Against the Machine at top volume.
Jonathan Scull Posted: Jul 24, 2009 Published: Dec 24, 1995 0 comments
My reviews always begin in bizarre ways. Take David Manley...please! (Just kidding.) On the last day of Winter CES 1995, I found myself towing a tuckered-out JA to a few final rooms. (This was just after the January '95 David Manley/Dick Olsher tube-rolling brouhaha, footnote 1, regarding who should do what to whom, and with which particular tube.) So as we passed Manley's room, John Atkinson thought to stick his head in (the noose) and say hello.
Steven Stone Posted: Sep 11, 2009 Published: May 11, 1996 0 comments
In the name of journalistic ethics (footnote 1) I have to come clean. David Manley once gave me a gift. He presented me with a large, rather heavy, Russian-made watch at the 1995 Las Vegas WCES. A very manly watch: In fact, it said "Manley" right on the dial. The watch worked fine for about six months. Then it developed a very subjective approach to timekeeping. Time stood still, and my life wasn't even passing before my eyes. The watch has become a nice, albeit slightly ugly, mini–boat anchor; now my rubber ducky stays where I put it in my bathtub.
Sam Tellig Posted: Oct 22, 2012 Published: Jan 01, 1996 0 comments
This should have been a recipe for disaster.

It's no secret. David Manley has not been big on single-ended amplifiers. Not enough muscle. You're better off with push-pull. Still, with a growing market for single-ended stuff, I'm sure Manley saw a need to do something. Of all tube designers, Manley has always been among the most prolific.

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