Given that Audio Research managed to provide a frisson of REF sound in their entry-level PH5 phono stage, is it too much to hope that the same benediction might apply to a new entry-level LS-series preamplifier? Imagine: an affordable preamp with a goodly slice of REF3 magic. 

Clearly, the LS26, which nestles smack in the middle of the range, exhibits much of the REF3's capability, but that unit costs £5300. You'd not merely expect top-flight performance at that price, you'd demand it. The LS17's price tag, though, brings us that much closer to Earth. It costs a more attainable £3099/$6000.

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Which is not to say that it lacks for anything beyond an elevated price, and I would not deduct a single point for the absence of a phono stage: this was designed from the get-go as a line-level-only preamp. Besides, it begs for the partnering PH5 phono stage, should vinyl be among your most-used sources.

Audio Research has been making line-only stages from some time, and this one clearly respects the brilliance of its predecessor, the delightful LS16, by tampering only slightly with the recipe. Like its forebear, the LS17's ingress and egress include two balanced and five single-ended inputs, plus two balanced and one single-ended output, while a tape deck is served by a dedicated monitor input and record output. The seven inputs are labeled BAL2 and BAL1 for the XLR-equipped balanced inputs, while the phono-socketed single-ended inputs are tagged AUX, Tuner, CD, Proc (for the insertion of a processor) and Monitor.

Where the '17 departs from the '16, while resisting the full-on light show of the REF3, is the fitting of a rather classy, newly-commissioned linear LED display. Its main function is a 20-lamp horizontal sequence for visual determination of where you've set the 104-step volume control - very tasty. It also contains indicators for the selected input and muting, and it's about as sensible and legible as one could want in this day of preamp/processors with miniature LCD TV screens onboard.

So hair-shirt it is not. Two rotaries control volume and source selection, while push buttons access power, tape monitor, the unity-gain processor loop and mute; these functions are also found on the supplied handheld remote. The company has also addressed custom installations, so all of the LS17's functions are individually addressable by discrete codes for integration with external controllers. Despite such modern touches, the LS17, especially in silver, is unmistakably an ARC product, thanks to its lab look, complete with black handles fitted as standard.

Under the hood, the LS17 employs two 6H30 twin triodes in its hybrid JFET/tube audio stage. The 480 x 134 x 305mm (WHD) chassis houses a larger power transformer, redesigned power supply with line regulation better than 0.01 percent and new parts, including proprietary output coupling caps. The power supplies are electronically-regulated, low and high voltage types. The circuitry provides an automatic 50-second warm-up time, which places the LS17 into mute mode after switch-on, thus precluding any nasty power-on thumps. 

Around back, a host of XLRs stared me in the face, so it was all but mandatory that I first savored the difference between single-ended and balanced usage. Regular readers will know that I prefer the latter, and the LS17 did nothing to change my mind. If you have balanced-output sources and balanced input amplifiers, invest in some balanced-XLR-terminated cables and enjoy the added coherence, tighter bass and everything else that studio types will tell you do not exist merely by going to balanced operation. But, as I learned, those single-ended outputs came in handy when I stumbled upon a match made in Heaven. Of which, more anon.

Sources included balanced-output PS Audio and Sim Moon phono stages (with SME 30/SME V turntable and Koetsu Urushi cartridge) and the balanced output of the Marantz CD12/DA12 CD player. Power amps included the McIntosh MC2102 and Krell Evolution 600, driving Sonus faber Guarneris and Rogers 15-ohm LS3/5As. Speaker wiring came from Yter, and contained a mix of Transparent and Kimber balanced and single-ended interconnects.

For some inexplicable, if not quite perverse, reason, I've been masochistically over-indulging in singer-songwriter works of late, much of it like cod liver oil: you know it's supposed to be good for you, even if it tastes like something from the crankcase of a 1947 Hudson. So, too, is the music of Joni Mitchell, something everyone with taste is supposed to love, despite a voice like fingernails across a chalkboard. Bob Lind of "Elusive Butterfly" fame, the supremely over-rated, tuneless Tim Buckley - whatever is music's equivalent of luvvies. Maybe I did it for, well, enlightenment. Or to understand why I worship the Ramones.

Read more about the LS17 on Page 2.