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This Month's Featured Equipment Reviews |
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Power Amplifier Forum Topics: |
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Classic Power Amplifier Reviews |
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Past Power Amplifier News |
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Mono Amplifiers
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Wednesday, 18 November 2009
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Written by
Andre Marc
The first time I got to hear a piece of Manley Labs tube gear was when I reviewed their superb Neo Classic 300B Preamplifier a few months ago. To say I was impressed would be an understatement. Albert Schippits, Manley Labs National Sales Manager, was also sure I would also be interested in reviewing their MAHI® mono block tube amplifiers.Just to recap, Manley Labs, in Chino, CA, has been making pro audio and audiophile gear for several decades, and their leader, EveAnna Manley, has a distinct world view and a lot of common sense, in my opinion. First, she feels that the high end hobby should be fun, and that hifi components should be fun to use and listen to. I could not agree more. Secondly, she believes common sense and minimalism should rule the design. Simple, reliable design, with ...
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Wednesday, 18 February 2009
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Written by
Robert Mead
As World War II was just ending, Frank McIntosh was starting up an audio company that would emerge as the benchmark audio manufacturer setting the bar for high-end audio components over the next 70 years. The performance level of Frank’s audio components was at such a high standard, even from its initial start-up, that television stations all over America sought out his mono tube power amplifier called the 50W-1 to be fully integrated into their television production facilities starting in 1949. The technology that powers that amp, the Unity Coupled Circuit, is still being used today. The McIntosh line of high-end audio components only achieved further greatness when they started branching out into the consumer field in 1967 when their engineers designed their first solid-state product, the C24 preamplifier, which the early audiophiles of the 1960’s cleaned out their bank ...
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Saturday, 01 March 2008
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Written by
Andrew Robinson
Introduction
I had my first real introduction to high-end audio back in high school. This consisted of a brief listening session with an entire rack of Krell electronics and a pair of Wilson Watt Puppy Version 5.1 speakers. Not since then has a company or product come along that has single-handedly changed the way I view two-channel audio and the paradigm of what’s possible quite like Bel Canto did late last year with their e.One S300iu Integrated Amp. I loved the S300iu so much I gave it my endorsement as one of the products of the year in our annual Gear We Love list. Truth be told, the S300iu came very close to capturing the top spot, which ultimately went to the magnificent Revel Salon2 loudspeakers.
However, the e.One S300iu review almost didn’t happen. When I contacted Bel Canto about doing ...
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Friday, 01 February 2008
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Written by
Jim Swantko
Introduction
In all my time as an audio enthusiast, I have never seen anything quite as polarizing as the words “switching amplifier.” In my experience, the overwhelming majority of audiophiles politely (or not so politely) dismiss them as a gimmick used to separate fools from their money. They firmly believe that bulk and heat generation are all indicators, which can be used to predict the competence of an amplifier’s performance. This idea is not as foolish as it may seem, as some of the most highly regarded amplifiers are behemoths, weighing in at over 100 pounds and producing enough heat to require a dedicated air-conditioning system.
There is, however, a burgeoning group who are singing the praises of some new switching amplifiers, calling them “giant killers.” But which side is correct? Switching amplification is nothing new; in fact, it’s been around for ...
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Friday, 01 June 2007
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Written by
Jerry Del Colliano
Introduction
I
have owned various Krell amplifiers in my reference systems over the
years, each providing hours upon hours of listening joy. Recently,
Krell has released a new top-of-the-line lineup of gear under the
Evolution moniker that speaks to those for a need for the best of the
best and a willingness to pay for it. The review system under
evaluation is comprised of a $10,000 Krell Evolution 505 SACD player
with 24-bit 192 DACs, a $15,000 Krell Evolution 202 two-chassis stereo
preamp and the monstrous Krell Evolution 900 monaural amplifiers at
$20,000 each, or $40,000 for the stereo pair as reviewed. My review
samples are done in Krell’s signature silver finish, which is
breathtakingly beautiful out of the rack and poised on a simple table
as it is installed in my reference system.
Set-up
To
start, it is important to note that the Krell Evolution 900 power amps
are nothing short of huge. With a travel ...
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