Power Amplifier Reviews

It starts with the box. These components are packaged in boxes that appear to be built with greater precision and care than most of the mainstream home theater <I>electronics</I> you're likely to encounter. A miniature homeless person's mansion, I imagined, lifting these two solid jewels from their form fitting enclosures.

Performance
Features
Ergonomics
Value

AT A GLANCE
Plus
Class A/B design
Impressive sound quality
Equal power to all channels
Minus
Very heavy
Lacks balanced inputs

THE VERDICT
At $1,499, this amp is an incredible steal. While it doesn’t quite reach the heights of its more expensive competition, it still offers a helluva view.

My introduction to Monoprice happened about 10 years ago when I needed some interconnects for a system I had designed for someone on a tight budget. I’d read how great a value the company’s offerings were and decided to take the leap. Not only was my friend happy to save a few bucks from the store brands, he didn’t sacrifice any of the quality, either. From day one, the interconnects worked like a charm. Since then, Monoprice has been my go-to source for home theater cables.

Performance
Features
Ergonomics
Value

AT A GLANCE
Plus
Exceptional performance
Exceptional build quality
Dimmable power indicator light
Minus
Pricey

THE VERDICT
It doesn’t come cheap, but NAD’s Masters M28 is a genuinely unique product designed to compete sonically with some of the highest-end amps on the market, regardless of how many channels they offer.

Whether you fall into the "all well-designed amps sound the same when used within their limits" camp or the "amp selection is critical" army of true believers, it's arguable that prior to the turn of the millennium amps designed for high-performance audio had fallen into a rut. They were so good that the advertising for them had to become increasingly creative. But a parade of skilled designers remained convinced that the new concepts they had come up with were superior, and audiophiles still lined up to buy them. The turf was always familiar: tubes remained tubes with their lovable quirkiness, and solid state was dominated by class-A/B designs as it had been since the transistor was invented.

NAD has long been a leading player in the audio, and now audio-video, electronics business. Although NAD once took a leap and marketed speakers in some parts of the planet, it's made its name by offering amps, preamps, receivers, CD and DVD players, and surround processors that delivered more performance than the prices and often-plain cosmetics might suggest. Unlike most of its peers, NAD has avoided the temptation to move sharply up market and produce products that only the well healed can afford.

Performance
Features
Build Quality
Value

AT A GLANCE
Plus
Inexpensive
Fanless
RCA and balanced XLR inputs
Auto standby
12 volt and Signal power trigger
Minus
Needs six-inch clearance when rack mounted

THE VERDICT

A rock-solid, affordable and attractive amp for powering seven channels in a surround-sound AV or home theater system. It delivers audiophile-quality sound for about a buck a watt.

Audio amplifiers have but one task: take an electrical signal and make it more powerful without changing its character. A good amplifier is as transparent as possible, neither adding nor subtracting anything from what you hear. The OSD Nero XA7180 promises all that plus high efficiency at a very attractive price.

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