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I've enjoyed having one of Cambridge's integrated amps in my office system for years, and the company boasts that the 851 series, designed in the UK and manufactured in China (like the rest of their line), is the best they've produced so far. After spending the last year listening to domestically manufactured DAC-preamps costing $6000 and up, I was curious to hear how a product costing only a quarter of the bottom of that range might stack up.

Ever since I reviewed PrimaLuna's ProLogue Premium, for the June 2012 issue, it has been the model I would turn to when I wanted a moderately priced integrated amplifier to try with a new speaker. It never disappointed me, and never seemed outclassed, even when the speaker was the MartinLogan Montis ($10,000/pair). At $2399, the ProLogue Premium to me represents the "sweet spot" for systems in the range of $4000–$10,000 or higher. Although its 35Wpc may not be enough for some speakers (depending on the room and personal preference), I never had any such problem, regardless of whether the speaker had a built-in powered subwoofer (eg, the Montis or the GoldenEar Technology Triton Two) or was a passive design (Wharfedale's Jade 7 or Focal's Aria 936). With differences noted depending on whether EL34 or KT88 output tubes were used, the ProLogue Premium delivered sound that was always smooth and musically involving.

• 1947: General Electric introduces a variable-reluctance phono cartridge with a 0.3mil sapphire stylus and 11mV output.

• 1948: Brook Electronics Inc. (Elizabeth, New Jersey) introduces the 12A audio amplifier and 12A3 preamplifier, beginning the era of high-fidelity audio separates.

Since hi-fi's postwar beginnings, hundreds of high-quality audio inventions for the home have thrilled and satisfied music lovers worldwide. But inevitably, no more than a few score companies, and maybe a dozen or so engineer-designers, have defined audio's most creative and enduring achievements.

Here, once again, are my picks for the year's best jazz albums...it's been a terrible year for much of the world, but a very good year for the salve of jazz.

Clearly, the concept of overexposure never enters Dave Grohl's mind.

For five years in this blog space, I've been urging, begging, audiophile record labels to reissue Masterpieces by Ellington, to my mind Duke Ellington's finest (and finest-sounding) album, on vinyl. Now Chad Kassem of Analogue Sounds has done it, and his QRP pressing is the jaw-dropper of the year...

The call I received from Music Hall's Leland Leard surprised me: "Hey, Bob, I think you'd be the perfect guy to review our new Ikura turntable!"

Hmm. It had been four years since I'd reviewed a record player: Pro-Ject's Debut III, in the February 2010 issue. And with the surging popularity of vinyl—hell, Rough Trade NYC's enormous new record store, in the Williamsburg section of Brooklyn, even sells turntables—the thought of a plug-and-play turntable-tonearm-cartridge combination for $1200 intrigued me. Sure, Leland—send it on.