Integrated Amp Reviews

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Ayre Acoustics AX-5 integrated amplifier

The only thing better than a review that writes itself is a product with a compelling story. Although the latter asks a little more of us here, it's usually the more enduring pleasure.

So it goes with the new AX-5 amplifier ($9950) from Ayre Acoustics, in which designer Charles Hansen has both revived an overlooked technology from a half-century ago and brought to market a more affordable embodiment of one of his own most well-received products.

Peachtree Audio nova125 integrated amplifier

With Peachtree Audio's new nova125 integrated amplifier, most decisions are made for you.

Need a DAC with three S/PDIF inputs (two coax, one optical)? An asynchronous USB DAC? A line stage? A tubed output buffer? A power amp that should be able to drive even difficult speaker loads? Remote control? You've got them all for $1499. Just add speakers. (I assume you have a laptop computer and several disc spinners.) You may want a separate phono stage, because there is none onboard.

Peachtree Audio decco65 D/A integrated amplifier

Whether one was surprised, in 2010, by the success of Peachtree Audio's iDecco may have more to do with age than anything else. My peers and I wondered, at first, who would want their high-end integrated amps to come bundled not only with digital-to-analog converters but with iPod docks, of all things; at the same time, younger hobbyists wondered who in the world still wanted their integrated amps to contain phono preamplifiers. (Respect for the elderly, myself especially, prevents me from adding "and mono switches.") Color me chastened.

The Mission System

Since its founding just over ten years ago, Mission Electronics has grown to become one of the largest "real" hi-fi companies in the UK. Although their product line originally consisted of three relatively conventional loudspeakers, it rapidly grew to encompass high-end pre- and power amplifiers, cartridges, tonearms, and turntables, and, in the mid 1980s, a system concept based on CD replay and relatively inexpensive electronics: the Cyrus amplifiers and tuner.

The Fifth Element #77

A particular audio interest of mine has long been cost-effective systems that work really well together. I think most of the audio sob stories I've heard can be traced to one or both of two things: mismatched equipment, and inadequate attention paid to room acoustics. I've previously written about systems that range in price from $7500 to under $1500. Here's as minimal and classy a high-performance system as you can ask for: one box for the electronics (including USB connectivity), and two stand-mounted, two-way loudspeakers. The total cost is just under $10,000, but I think the price is justified not only by swank looks, but by the sound.

Devialet D-Premier D/A integrated amplifier

Most reviews are straightforward. One preamplifier or power amplifier replaces another. DACs are swapped out. A new pair of speakers takes up residence in the listening room.

But some products demand a complete revision of a system's architecture. Such was the case with Devialet's D-Premier ($15,995). Not only is this French product an integrated amplifier, with phono and line analog inputs; it has digital inputs and an internal D/A section.

Rogers High Fidelity EHF-100 integrated amplifier

I can imagine the gaiety and mirth that filled the halls of the electronics industry in the 1950s, as engineer after bespectacled engineer realized that the transistor would soon consign to the outposts of oblivion those ancient technologies that had preceded it. Before long—surely no more than a decade—the hated vacuum tube would vanish from the Earth, along with the tube socket, the tube tester, the tag board, the high-voltage rail, and that lowest rascal of them all, the output transformer. What a jubilant time!

I can't imagine what went wrong.

PrimaLuna ProLogue Premium integrated amplifier

Integrated amplifiers are hot. I don't mean in the literal sense—although having a preamplifier and stereo power amplifier in the same chassis usually results in higher running temperatures—but in the metaphorical one. Once viewed as the type of component that no serious audiophile would consider buying, integrated amps have made a comeback in popularity and prestige. Consider: the October 2006 "Recommended Components" issue of Stereophile listed 29 integrated amps, whereas the October 2011 issue lists 40. Stereophile's 2010 Amplification Component of the Year award went to an integrated amp, the Audio Research VSi60, beating out a host of heavy-hitter preamps and power amps. The 2012 Stereophile Buyer's Guide lists 400 integrateds.
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