Power Amplifier Reviews

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Michael Trei  |  Feb 22, 2012

Few audio companies are as closely associated with a single individual as Pass Laboratories is with its founder Nelson Pass, a man who has always blazed his own path when it comes to designing audio gear. Pass founded Threshold Electronics back in the early 1970s, but when he wanted to explore new, simpler circuit topologies in the early 1990s, he created Pass Labs as a way to market his latest creations.

The two integrated amps in the Pass Labs line, the INT-150 and INT-30A, are a good example of his less-than-conventional approach, seeing as both appear to be  identical except for the critical question of output power. Physically the two amps are indistinguishable, with exactly the same functions, weight, dimensions, and even price tag. It's only when you take a peek at the spec sheet that the differences become apparent, with the INT-150 delivering a healthy 150 watts per-channel, while the INT-30A tops out at just one-fifth that amount.

So what gives? Why would anyone buy an inline four when they're offering you the V-12 for the same money?

Daniel Kumin  |  Apr 10, 2012

I am of the school that believes that more power is always better than less power. That school also professes that amplifiers, while operating within their linear abilities (a big “if”), are not generally distinct in their sonics.

John J. Gannon  |  Dec 24, 2001

We at <I>SGHT</I> are no strangers to Rotel products. In the October 2000 issue, Michael Fremer reviewed Rotel's RTC-965 surround processor/tuner with the RB-985 Mk.II power amplifier, and in February 2001, Robert Deutsch waxed enthusiastic about the RMB-1095 power amp. Both writers lauded these products' value, and RD spoke of Rotel's consistency in product and circuit design, something he'd noticed through the years. He declared the RMB-1095 "one of the best buys in a multichannel amplifier."

Thomas J. Norton  |  May 07, 2006

When we think of a power amp today, we think of that large, heavy, hot-running, often ugly block of metal we hide away so we don't have to look at it. Or, if it's impressively large or expensive we proudly display it on the floor&mdash;an amp that's large, impressive, and expensive enough to show off is too heavy to put anywhere else! There, we willingly subject our ankles and shins to its sharp heat sinks on the sacrificial altar of great sound.

Chris Lewis  |  Jul 11, 2002  |  First Published: Jul 12, 2002
Who says small companies can't make big waves?

The fireworks are popping, the burgers are grilling, and the bourbon is flowing, which can only mean one thing: It's the end of another workday at the Lewis house. When that day falls early in the month of July, you can bet that some extra contemplation of all things American will be on the itinerary, as well. Let's face it: Is there anything more American than an underdog? I'll bet Ron Fone and Eugene Tang don't think there is, which may be why they decided back in 1998 to start Sherbourn right here in the USA—in Boston, no less. Sure, market size, the economy, and the fact that both men were already working for American companies were undoubtedly the real cause. But, somewhere in the back of their minds, they had to figure that, if a loose confederation of farmers, merchants, and castaways from all over Europe could defeat (or at least outlast) the greatest military power of the time and forge a nation that would quickly become a world superpower, then a small, sharply focused amplifier company just might be able to shoulder in with the big boys and get its piece of the pie.

 |  Jul 07, 2006

<UL CLASS="square">
<LI>Price: $15,800/pr.</LI>
<LI>Channels/Power: Monoblock; 400-Watts per channel into 8 ohms/650-Watts into 4 ohms</LI>
<LI>Inputs: Single-ended and balanced</LI>
</UL>
<IMG SRC="/images/archivesart/706thetacit.jpg" WIDTH=450 HEIGHT=332 BORDER=0>

Thomas J. Norton  |  Mar 07, 2004

The Dreadnaught (reviewed in our Oct-ober 2000 issue) was the first power amplifier from Theta Digital, a company previously known for its D/A converters, CD and DVD transports, and surround processors. But it wasn't to be the last. The Dreadnaught II is now a member of a growing family of Theta amplifiers&mdash;the premier multichannel design in a line that also includes high-end monoblocks.

David Vaughn  |  Aug 11, 2022

Performance
Features
Ergonomics
Value
PRICE $12,500

AT A GLANCE
Plus
Convenient one-chassis design
Superb dynamics and soundstage
Channels can be bridged to double the output
Minus
Amp runs very hot
–No legacy inputs

THE VERDICT
Trinnov’s Amplitude16 packs 16 channels of serious power in a standard size component and brings music and movie soundtracks to life in a thrilling way.

Last year I had the good fortune of reviewing Trinnov's Altitude16 surround-sound processor and loved it so much it became a permanent fixture in my A/V system. At the time, I raved about its performance and, after more than a year of daily use, I can honestly say that this 16-channel pre-pro is one of the best upgrades I've ever done in my theater.

David Vaughn  |  Aug 01, 2008

Performance
Features
Ergonomics
Value
You've probably never heard of a company called Wyred 4 Sound. Neither had I until I was offered the opportunity to review one of its multichannel power amps for UAV. W4S is a California-based company whose goal is to design, engineer, and manufacture high-end audio products with audiophile performance at affordable prices.

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